Load forecasting plays an essential role in power system planning. The efficiency and reliability of the whole power system can be increased with proper planning and organization. Residential load forecasting is indispensable due to its increasing role in the smart grid environment. Nowadays, smart meters can be deployed at the residential level for collecting historical data consumption of residents. Although the employment of smart meters ensures large data availability, the inconsistency of load data makes it challenging and taxing to forecast accurately. Therefore, the traditional forecasting techniques may not suffice the purpose. However, a deep learning forecasting network-based long short-term memory (LSTM) is proposed in this paper. The powerful nonlinear mapping capabilities of RNN in time series make it effective along with the higher learning capabilities of long sequences of LSTM. The proposed method is tested and validated through available real-world data sets. A comparison of LSTM is then made with two traditionally available techniques, exponential smoothing and auto-regressive integrated moving average model (ARIMA). Real data from 12 houses over three months is used to evaluate and validate the performance of load forecasts performed using the three mentioned techniques. LSTM model has achieved the best results due to its higher capability of memorizing large data in time series-based predictions.
This paper reviews load forecasting using a neuro-fuzzy system. It discusses how neural networks and fuzzy logic can be combined in a neuro-fuzzy system to improve load forecasting accuracy. The paper first provides background on load forecasting and different techniques used. It then proposes using a neuro-fuzzy approach where load data is classified with fuzzy sets and a neural network is trained on each classification to forecast loads. Combining the learning ability of neural networks with the symbolic reasoning of fuzzy logic in a neuro-fuzzy system can potentially provide more accurate short-term load forecasts. The paper concludes that neuro-fuzzy systems show advantages over other statistical and AI methods for load forecasting.
This document discusses electrical energy management and load forecasting in smart grids using artificial neural networks. It presents a study applying backpropagation neural networks to short-term load forecasting for Sudan's National Electric Company. The neural network model was used to forecast load, with error calculated by comparing forecasted and actual load data. The document also discusses generation dispatch, demand forecasting techniques, and designing a neural network for one-day load forecasting. It evaluates network performance and error for different training data sizes, finding that a ten-day training dataset produced the best results with minimum error. The neural network approach was able to reliably predict the nonlinear relationship between historical data and load.
The document summarizes a study comparing time series and artificial neural network (ANN) methods for short-term load forecasting of Covenant University, Nigeria. Load data from October 15-16, 2012 was used to develop forecasting models using moving average, exponential smoothing (time series methods) and ANN. The ANN model with inputs of previous load, time of day, day of week and weekday/weekend proved most accurate with a mean absolute deviation of 0.225, mean squared error of 0.095 and mean absolute percent error of 8.25, making it the best forecasting method according to the error measurements.
This document discusses short term load forecasting using intelligent methods like neural networks and fuzzy logic. It begins by introducing load forecasting and its importance for power system operations. It then discusses different forecasting techniques like regression, neural networks, fuzzy logic and neuro-fuzzy approaches. The document focuses on neural networks and fuzzy logic methods. It provides details on radial basis function neural networks and fuzzy logic systems. It proposes a neuro-fuzzy model for short term load forecasting and discusses training such a model. The document concludes by mentioning multiple linear regression as another commonly used forecasting technique.
IRJET- Predicting Monthly Electricity Demand using Soft-Computing TechniqueIRJET Journal
This document proposes using soft-computing techniques like multi-layer perceptron, support vector machine, and decision tree algorithms to predict monthly electricity demand in Ghana. It analyzed three years of historical weather and electricity demand data from the Bono region to train and test the models. The decision tree algorithm achieved 80.57% accuracy, multi-layer perceptron achieved 95% accuracy, and support vector regression achieved 67.2% accuracy according to the results. The models were efficient at predicting future electricity load.
Rule Optimization of Fuzzy Inference System Sugeno using Evolution Strategy f...IJECEIAES
The need for accurate load forecasts will increase in the future because of the dramatic changes occurring in the electricity consumption. Sugeno fuzzy inference system (FIS) can be used for short-term load forecasting. However, challenges in the electrical load forecasting are the data used the data trend. Therefore, it is difficult to develop appropriate fuzzy rules for Sugeno FIS. This paper proposes Evolution Strategy method to determine appropriate rules for Sugeno FIS that have minimum forecasting error. Root Mean Square Error (RMSE) is used to evaluate the goodness of the forecasting result. The numerical experiments show the effectiveness of the proposed optimized Sugeno FIS for several test-case problems. The optimized Sugeno FIS produce lower RMSE comparable to those achieved by other wellknown method in the literature.
Electrical load forecasting through long short term memoryIJEECSIAES
For a power supplier, meeting demand-supply equilibrium is of utmost importance. Electrical energy must be generated according to demand, as a
large amount of electrical energy cannot be stored. For the proper
functioning of a power supply system, an adequate model for predicting load is a necessity. In the present world, in almost every industry, whether it be healthcare, agriculture, and consulting, growing digitization and automation is a prominent feature. As a result, large sets of data related to these industries are being generated, which when subjected to rigorous analysis,
yield out-of-the-box methods to optimize the business and services offered. This paper aims to ascertain the viability of long short term memory (LSTM)
neural networks, a recurrent neural network capable of handling both longterm and short-term dependencies of data sets, for predicting load that is to
be met by a Dispatch Center located in a major city. The result shows appreciable accuracy in forecasting future demand.
Electrical load forecasting through long short term memorynooriasukmaningtyas
This document discusses using a long short-term memory (LSTM) neural network to forecast electrical load. It summarizes the dataset used, which was load data collected every 5 minutes from the State Load Dispatch Centre in Delhi, India over a one month period. It describes preprocessing steps taken on the data, including detrending to remove trends, decomposing to extract seasonality components, and rescaling. The document then evaluates using an LSTM model to forecast electrical load based on this dataset, finding it achieved appreciable accuracy.
This paper reviews load forecasting using a neuro-fuzzy system. It discusses how neural networks and fuzzy logic can be combined in a neuro-fuzzy system to improve load forecasting accuracy. The paper first provides background on load forecasting and different techniques used. It then proposes using a neuro-fuzzy approach where load data is classified with fuzzy sets and a neural network is trained on each classification to forecast loads. Combining the learning ability of neural networks with the symbolic reasoning of fuzzy logic in a neuro-fuzzy system can potentially provide more accurate short-term load forecasts. The paper concludes that neuro-fuzzy systems show advantages over other statistical and AI methods for load forecasting.
This document discusses electrical energy management and load forecasting in smart grids using artificial neural networks. It presents a study applying backpropagation neural networks to short-term load forecasting for Sudan's National Electric Company. The neural network model was used to forecast load, with error calculated by comparing forecasted and actual load data. The document also discusses generation dispatch, demand forecasting techniques, and designing a neural network for one-day load forecasting. It evaluates network performance and error for different training data sizes, finding that a ten-day training dataset produced the best results with minimum error. The neural network approach was able to reliably predict the nonlinear relationship between historical data and load.
The document summarizes a study comparing time series and artificial neural network (ANN) methods for short-term load forecasting of Covenant University, Nigeria. Load data from October 15-16, 2012 was used to develop forecasting models using moving average, exponential smoothing (time series methods) and ANN. The ANN model with inputs of previous load, time of day, day of week and weekday/weekend proved most accurate with a mean absolute deviation of 0.225, mean squared error of 0.095 and mean absolute percent error of 8.25, making it the best forecasting method according to the error measurements.
This document discusses short term load forecasting using intelligent methods like neural networks and fuzzy logic. It begins by introducing load forecasting and its importance for power system operations. It then discusses different forecasting techniques like regression, neural networks, fuzzy logic and neuro-fuzzy approaches. The document focuses on neural networks and fuzzy logic methods. It provides details on radial basis function neural networks and fuzzy logic systems. It proposes a neuro-fuzzy model for short term load forecasting and discusses training such a model. The document concludes by mentioning multiple linear regression as another commonly used forecasting technique.
IRJET- Predicting Monthly Electricity Demand using Soft-Computing TechniqueIRJET Journal
This document proposes using soft-computing techniques like multi-layer perceptron, support vector machine, and decision tree algorithms to predict monthly electricity demand in Ghana. It analyzed three years of historical weather and electricity demand data from the Bono region to train and test the models. The decision tree algorithm achieved 80.57% accuracy, multi-layer perceptron achieved 95% accuracy, and support vector regression achieved 67.2% accuracy according to the results. The models were efficient at predicting future electricity load.
Rule Optimization of Fuzzy Inference System Sugeno using Evolution Strategy f...IJECEIAES
The need for accurate load forecasts will increase in the future because of the dramatic changes occurring in the electricity consumption. Sugeno fuzzy inference system (FIS) can be used for short-term load forecasting. However, challenges in the electrical load forecasting are the data used the data trend. Therefore, it is difficult to develop appropriate fuzzy rules for Sugeno FIS. This paper proposes Evolution Strategy method to determine appropriate rules for Sugeno FIS that have minimum forecasting error. Root Mean Square Error (RMSE) is used to evaluate the goodness of the forecasting result. The numerical experiments show the effectiveness of the proposed optimized Sugeno FIS for several test-case problems. The optimized Sugeno FIS produce lower RMSE comparable to those achieved by other wellknown method in the literature.
Electrical load forecasting through long short term memoryIJEECSIAES
For a power supplier, meeting demand-supply equilibrium is of utmost importance. Electrical energy must be generated according to demand, as a
large amount of electrical energy cannot be stored. For the proper
functioning of a power supply system, an adequate model for predicting load is a necessity. In the present world, in almost every industry, whether it be healthcare, agriculture, and consulting, growing digitization and automation is a prominent feature. As a result, large sets of data related to these industries are being generated, which when subjected to rigorous analysis,
yield out-of-the-box methods to optimize the business and services offered. This paper aims to ascertain the viability of long short term memory (LSTM)
neural networks, a recurrent neural network capable of handling both longterm and short-term dependencies of data sets, for predicting load that is to
be met by a Dispatch Center located in a major city. The result shows appreciable accuracy in forecasting future demand.
Electrical load forecasting through long short term memorynooriasukmaningtyas
This document discusses using a long short-term memory (LSTM) neural network to forecast electrical load. It summarizes the dataset used, which was load data collected every 5 minutes from the State Load Dispatch Centre in Delhi, India over a one month period. It describes preprocessing steps taken on the data, including detrending to remove trends, decomposing to extract seasonality components, and rescaling. The document then evaluates using an LSTM model to forecast electrical load based on this dataset, finding it achieved appreciable accuracy.
Target Response Electrical usage Profile Clustering using Big DataIRJET Journal
This document discusses using clustering algorithms to analyze large datasets from smart meters to identify patterns in electricity usage. It proposes a new method for clustering micro-clusters that uses a density graph to explicitly represent the density of data points between micro-clusters. This allows the micro-clusters to be re-clustered into a smaller number of final clusters. The algorithm involves constructing a minimum spanning tree from the density graph, partitioning it into trees representing clusters, and selecting representative features from each micro-cluster. This clustering-based feature subset selection aims to improve the efficiency and accuracy of load profiling and short-term load forecasting using big data from smart meters.
Study on the performance indicators for smart grids: a comprehensive reviewTELKOMNIKA JOURNAL
This paper presents a detailed review on performance indicators for smart grid (SG) such as voltage stability enhancement, reliability evaluation, vulnerability assessment, Supervisory Control and Data Acquisition (SCADA) and communication systems. Smart grids reliability assessment can be performed by analytically or by simulation. Analytical method utilizes the load point assessment techniques, whereas the simulation technique uses the Monte Carlo simulation (MCS) technique. The reliability index evaluations will consider the presence or absence of energy storage elements using the simulation technologies such as MCS, and the analytical methods such as systems average interruption frequency index (SAIFI), and other load point indices. This paper also presents the difference between SCADA and substation automation, and the fact that substation automation, though it uses the basic concepts of SCADA, is far more advanced in nature.
Short-term wind speed forecasting system using deep learning for wind turbine...IJECEIAES
It is very important to accurately detect wind direction and speed for wind energy that is one of the essential sustainable energy sources. Studies on the wind speed forecasting are generally carried out for long-term predictions. One of the main reasons for the long-term forecasts is the correct planning of the area where the wind turbine will be built due to the high investment costs and long-term returns. Besides that, short-term forecasting is another important point for the efficient use of wind turbines. In addition to estimating only average values, making instant and dynamic short-term forecasts are necessary to control wind turbines. In this study, short-term forecasting of the changes in wind speed between 1-20 minutes using deep learning was performed. Wind speed data was obtained instantaneously from the feedback of the emulated wind turbine's generator. These dynamically changing data was used as an input of the deep learning algorithm. Each new data from the generator was used as both test and training input in the proposed approach. In this way, the model accuracy and enhancement were provided simultaneously. The proposed approach was turned into a modular independent integrated system to work in various wind turbine applications. It was observed that the system can predict wind speed dynamically with around 3% error in the applications in the test setup applications.
Short term load forecasting system based on support vector kernel methodsijcsit
Load Forecasting is powerful tool to make important decisions such as to purchase and generate the
electric power, load switching, development plans and energy supply according to the demand. The
important factors for forecasting involve short, medium and long term forecasting. Factors in short term
forecasting comprises of whether data, customer classes, working, non-working days and special event
data, while long term forecasting involves historical data, population growth, economic development and
different categories of customers.In this paper we have analyzed the load forecasting data collected from
one grid that contain the load demands for day and night, special events, working and non-working days
and different hours in day. We have analyzed the results using Machine Learning techniques, 10 fold cross
validation and stratified CV. The Machines Learning techniques used are LDA, QDA, SVM Polynomial,
Gaussian, HRBF, MQ kernels as well as LDA and QDA. The errors methods employed against the
techniques are RSE, MSE, RE and MAPE as presented in the table 2 below. The result calculated using the
SVM kernel shows that SVM MQ gives the highest performance of 99.53 %.
PVPF tool: an automated web application for real-time photovoltaic power fore...IJECEIAES
1) The document describes PVPF tool, a web application that provides 24-hour ahead forecasts of photovoltaic power production based on real-time weather data and a pre-trained machine learning system.
2) The tool imports temperature, solar irradiance, and PV production measurement data from the ASU weather station and a PV installation. This data is processed and fed into a neural network trained using the Bayesian Regularization algorithm.
3) Hourly power production forecasts for the next 24 hours are published in real-time on the renewable energy center's website as a power/time curve, along with actual measured production values once available.
A novel wind power prediction model using graph attention networks and bi-dir...IJECEIAES
Today, integrating wind energy forecasting is an important area of research due to the erratic nature of wind. To achieve this goal, we propose a new model of wind speed prediction based on graph attention networks (GAT), we added a new attention mechanism and a learnable adjacency matrix to the GAT structure to obtain attention scores for each weather variable. The results of the GAT-based model are merged with the bi-directional deep learning long and short-term memory (BiLSTM) layer to take advantage of the geographic and temporal properties of historical weather data. The experiments and analyzes are carried out using precise meteorological data collected from wind farms in the Moroccan city of Tetouan. We show that the proposed model can learn complex input-output correlations of meteorological data more efficiently than previous wind speed prediction algorithms. Due to the resulting attention weights, the model also provides more information about the main weather factors for the evaluated forecast work.
This document provides an overview of different methods for long-term electric load demand forecasting. It begins with an introduction to the importance of long-term demand forecasting for electric utility planning. It then describes several traditional parametric forecasting methods, including trend analysis, end-use modeling, and econometric modeling. The key differences between these methods are discussed. The document then introduces several artificial intelligence-based methods that have been used for long-term load forecasting, including neural networks, genetic algorithms, fuzzy logic, support vector machines, wavelet networks, and expert systems. Specific network architectures for neural networks that are suitable for long-term load forecasting are also described, such as recurrent neural networks, feed-forward back
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Forecasting electricity usage in industrial applications with gpu acceleratio...Conference Papers
This document compares various exponential smoothing and ARIMA models to forecast electricity usage in an industrial setting using a short time series dataset. It finds that Holt linear trend and Holt linear damped trend models provide the most accurate forecasts for electricity usage in mill production of hammers and pellets based on having the lowest root mean square error values compared to actual usage. GPU acceleration via the RAPIDS framework is used to improve the training and forecasting speed of the models on the short dataset.
Sampling-Based Model Predictive Control of PV-Integrated Energy Storage Syste...Power System Operation
This paper proposes a novel control solution designed to solve the local and grid-connected
distributed energy resources (DERs) management problem by developing a generalizable framework capable
of controlling DERs based on forecasted values and real-time energy prices. The proposed model uses
sampling-based model predictive control (SBMPC), together with the real-time price of energy and forecasts
of PV and load power, to allocate the dispatch of the available distributed energy resources (DERs) while
minimizing the overall cost. The strategy developed aims to nd the ideal combination of solar, grid, and
energy storage (ES) power with the objective of minimizing the total cost of energy of the entire system.
Both ofine and controller hardware-in-the-loop (CHIL) results are presented for a 7-day test case scenario
and compared with two manual base test cases and four baseline optimization algorithms (Genetic Algo-
rithm (GA), Particle Swarm Optimization (PSO), Quadratic Programming interior-point method (QP-IP),
and Sequential Quadratic Programming (SQP)) designed to solve the optimization problem considering the
current status of the system and also its future states. The proposed model uses a 24-hour prediction horizon
with a 15-minute control horizon. The results demonstrate substantial cost and execution time savings when
compared to the other baseline control algorithms.
Wind power prediction using a nonlinear autoregressive exogenous model netwo...IJECEIAES
The monitoring of wind installations is key for predicting their future behavior, due to the strong dependence on weather conditions and the stochastic nature of the wind. However, in some places, in situ measurements are not always available. In this paper, active power predictions for the city of Santa Marta-Colombia using a nonlinear autoregressive exogenous model (NARX) network were performed. The network was trained with a reliable dataset from a wind farm located in Turkey, because the meteorological data from the city of Santa Marta are unavailable or unreliable on certain dates. Three training and testing cases were designed, with different input variables and varying the network target between active power and wind speed. The dataset was obtained from the Kaggle platform, and is made up of five variables: date, active power, wind speed, theoretical power, and wind direction; each with 50,530 samples, which were preprocessed, and in some cases, normalized, to facilitate the neural network learning. For the training, testing and validation processes, a correlation coefficient of 0.9589 was obtained for the best scenario with the data from Turkey, while the best correlation coefficient for the data from Santa Marta was 0.8537.
A Critical Review on Employed Techniques for Short Term Load ForecastingIRJET Journal
This document discusses techniques for short term load forecasting. It begins by defining the importance of load forecasting for electric utilities in planning energy purchasing and generation. It then reviews various short term load forecasting methods including artificial neural networks, fuzzy logic, genetic algorithms, and time series approaches. Finally, it provides details on artificial neural networks and their benefits for load forecasting applications. In summary, the document provides an overview of short term load forecasting and a critical review of techniques such as artificial neural networks, fuzzy logic and genetic algorithms.
This document provides an overview of using neural network techniques in power systems. It discusses how neural networks have been applied to areas like fault diagnosis, security assessment, load forecasting, economic dispatch, and harmonic analysis. The number of published papers in these areas has grown significantly from 1990-1996 to 2000-2005, particularly in load forecasting, fault diagnosis/location, economic dispatch, security assessment, and transient stability. The document then reviews in more detail how neural networks have been applied to load forecasting, fault diagnosis/location, and economic dispatch problems in the power industry.
Power System Reliability Assessment in a Complex Restructured Power SystemIJECEIAES
The basic purpose of an electric power system is to supply its consumers with electric energy as parsimoniously as possible and with a sensible degree of continuity and quality. It is expected that the solicitation of power system reliability assessment in bulk power systems will continue to increase in the future especially in the newly deregulated power diligence. This paper presents the research conducted on the three areas of incorporating multi-state generating unit models, evaluating system performance indices and identifying transmission paucities in complex system adequacy assessment. The incentives for electricity market participants to endow in new generation and transmission facilities are highly influenced by the market risk in a complex restructured environment. This paper also presents a procedure to identify transmission deficiencies and remedial modification in the composite generation and transmission system and focused on the application of probabilistic techniques in composite system adequacy assessment
The document summarizes electricity load forecasting techniques for power system planning. It discusses using curve fitting algorithms to forecast electricity load based on analyzing past load data from 2012. Specifically, it proposes using a Fourier series curve fitting model to predict future load based on factors like temperature, humidity, and time of day or year. The document also briefly describes other common load forecasting techniques including multiple regression, exponential smoothing, and neural networks.
Survey on deep learning applied to predictive maintenance IJECEIAES
Prognosis health monitoring (PHM) plays an increasingly important role in the management of machines and manufactured products in today’s industry, and deep learning plays an important part by establishing the optimal predictive maintenance policy. However, traditional learning methods such as unsupervised and supervised learning with standard architectures face numerous problems when exploiting existing data. Therefore, in this essay, we review the significant improvements in deep learning made by researchers over the last 3 years in solving these difficulties. We note that researchers are striving to achieve optimal performance in estimating the remaining useful life (RUL) of machine health by optimizing each step from data to predictive diagnostics. Specifically, we outline the challenges at each level with the type of improvement that has been made, and we feel that this is an opportunity to try to select a state-of-the-art architecture that incorporates these changes so each researcher can compare with his or her model. In addition, post-RUL reasoning and the use of distributed computing with cloud technology is presented, which will potentially improve the classification accuracy in maintenance activities. Deep learning will undoubtedly prove to have a major impact in upgrading companies at the lowest cost in the new industrial revolution, Industry 4.0.
Economical and Reliable Expansion Alternative of Composite Power System under...IJECEIAES
The paper intends to select the most economical and reliable expansion alternative of a composite power system to meet the expected future load growth. In order to reduce time computational quantity, a heuristic algorithm is adopted for composite power system reliability evaluation is proposed. The proposed algorithm is based on Monte-Carlo simulation method. The reliability indices are estimated for system base case and for the case of adding peaking generation units. The least cost reserve margin for the addition of five 20MW generating units sequentially is determined. Using the proposed algorithm an increment comparison approach used to illustrate the effect of the added units on the interruption and on the annual net gain costs. A flow chart introduced to explain the basic methodology to have an adequate assessment of a power system using Monte Carlo Simulation. The IEEE RTS (24-bus, 38-line) and The Jordanian Electrical Power System (46bus and 92-line) were examined to illustrate how to make decisions in power system planning and expansions.
Short-Term Forecasting of Electricity Consumption in Palestine Using Artifici...ijaia
Nowadays, planning the process of electricity consumption demand is one of the keys success factors for
the development of countries. Due to the importance of electricity, countries have greatly paid attention to
the prediction of electricity consumption. Electricity consumption prediction is a major problem for the
power sector; an efficient prediction will help electrical companies to take the right decisions and to
optimize their supply strategies for their work. In this paper, we proposed a model that is used to predict
the future electricity consumption depending on the previous consumption. This model provides companies
and authorities to know the future information about the electricity consumption, so they can organize their
distribution and make suitable plans to maintain the stability in the delivery and distribution of electricity.
We aim to create a model that will be able to study the previous electricity consumption patterns and use
this data to predict the future electricity consumption. The system analyzes the collected data of electricity
consumption of the previous years, then byusing the mean value for each day and the use of Multilayer
Feed-Forward with Backpropagation Neural Networks (MFFNNBP) as a tool to predict the future
electricity consumption in Palestine. The data used in this paper depends on data collection of months and
years. Finally, this proposed model conducts a systematic process with the aim of determining the future
electricity consumption in Palestine. The proposed application and the result in this paper are developed in
order to contribute to the improvement of the current energy planning tools in Palestine. The experimental
results show that the model performs good results of prediction, with low Mean Square Error (MSE).
A Comparative study on Different ANN Techniques in Wind Speed Forecasting for...IOSRJEEE
There are several available renewable sources of energy, among which Wind Power is the one which is most uncertain in nature. This is because wind speed changes continuously with time leading to uncertainty in availability of amount of wind power generated. Hence, a short-term forecasting of wind speed will help in prior estimation of wind power generation availability for the grid and economic load dispatch.This paper present a comparative study of a Wind speed forecasting model using Artificial Neural Networks (ANN) with three different learning algorithms. ANN is used because it is a non-linear data driven, adaptive and very powerful tool for forecasting purposes. Here an attempt is made to forecast Wind Speed using ANN with Levenberg-Marquard (LM) algorithm, Scaled Conjugate Gradient (SCG) algorithm and Bayesian Regularization (BR) algorithm and their results are compared based on their convergence speed in training period and their performance in testing period on the basis of Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE) and Mean Square Error (MSE).A 48 hour ahead wind speed is forecasted in this work and it is compared with the measured values using all three algorithms and the best out of the three is selected based on minimum error.
IRJET - Intelligent Weather Forecasting using Machine Learning TechniquesIRJET Journal
This document discusses using machine learning techniques to forecast weather intelligently. It proposes using multi-target regression and recurrent neural network (RNN) models trained on historical weather data from Bangalore to predict future weather conditions like temperature, humidity, and precipitation. The data is first preprocessed before being fed to the models. The models are evaluated to accurately predict weather in the short term to help people like farmers and commuters without relying on expensive equipment.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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Target Response Electrical usage Profile Clustering using Big DataIRJET Journal
This document discusses using clustering algorithms to analyze large datasets from smart meters to identify patterns in electricity usage. It proposes a new method for clustering micro-clusters that uses a density graph to explicitly represent the density of data points between micro-clusters. This allows the micro-clusters to be re-clustered into a smaller number of final clusters. The algorithm involves constructing a minimum spanning tree from the density graph, partitioning it into trees representing clusters, and selecting representative features from each micro-cluster. This clustering-based feature subset selection aims to improve the efficiency and accuracy of load profiling and short-term load forecasting using big data from smart meters.
Study on the performance indicators for smart grids: a comprehensive reviewTELKOMNIKA JOURNAL
This paper presents a detailed review on performance indicators for smart grid (SG) such as voltage stability enhancement, reliability evaluation, vulnerability assessment, Supervisory Control and Data Acquisition (SCADA) and communication systems. Smart grids reliability assessment can be performed by analytically or by simulation. Analytical method utilizes the load point assessment techniques, whereas the simulation technique uses the Monte Carlo simulation (MCS) technique. The reliability index evaluations will consider the presence or absence of energy storage elements using the simulation technologies such as MCS, and the analytical methods such as systems average interruption frequency index (SAIFI), and other load point indices. This paper also presents the difference between SCADA and substation automation, and the fact that substation automation, though it uses the basic concepts of SCADA, is far more advanced in nature.
Short-term wind speed forecasting system using deep learning for wind turbine...IJECEIAES
It is very important to accurately detect wind direction and speed for wind energy that is one of the essential sustainable energy sources. Studies on the wind speed forecasting are generally carried out for long-term predictions. One of the main reasons for the long-term forecasts is the correct planning of the area where the wind turbine will be built due to the high investment costs and long-term returns. Besides that, short-term forecasting is another important point for the efficient use of wind turbines. In addition to estimating only average values, making instant and dynamic short-term forecasts are necessary to control wind turbines. In this study, short-term forecasting of the changes in wind speed between 1-20 minutes using deep learning was performed. Wind speed data was obtained instantaneously from the feedback of the emulated wind turbine's generator. These dynamically changing data was used as an input of the deep learning algorithm. Each new data from the generator was used as both test and training input in the proposed approach. In this way, the model accuracy and enhancement were provided simultaneously. The proposed approach was turned into a modular independent integrated system to work in various wind turbine applications. It was observed that the system can predict wind speed dynamically with around 3% error in the applications in the test setup applications.
Short term load forecasting system based on support vector kernel methodsijcsit
Load Forecasting is powerful tool to make important decisions such as to purchase and generate the
electric power, load switching, development plans and energy supply according to the demand. The
important factors for forecasting involve short, medium and long term forecasting. Factors in short term
forecasting comprises of whether data, customer classes, working, non-working days and special event
data, while long term forecasting involves historical data, population growth, economic development and
different categories of customers.In this paper we have analyzed the load forecasting data collected from
one grid that contain the load demands for day and night, special events, working and non-working days
and different hours in day. We have analyzed the results using Machine Learning techniques, 10 fold cross
validation and stratified CV. The Machines Learning techniques used are LDA, QDA, SVM Polynomial,
Gaussian, HRBF, MQ kernels as well as LDA and QDA. The errors methods employed against the
techniques are RSE, MSE, RE and MAPE as presented in the table 2 below. The result calculated using the
SVM kernel shows that SVM MQ gives the highest performance of 99.53 %.
PVPF tool: an automated web application for real-time photovoltaic power fore...IJECEIAES
1) The document describes PVPF tool, a web application that provides 24-hour ahead forecasts of photovoltaic power production based on real-time weather data and a pre-trained machine learning system.
2) The tool imports temperature, solar irradiance, and PV production measurement data from the ASU weather station and a PV installation. This data is processed and fed into a neural network trained using the Bayesian Regularization algorithm.
3) Hourly power production forecasts for the next 24 hours are published in real-time on the renewable energy center's website as a power/time curve, along with actual measured production values once available.
A novel wind power prediction model using graph attention networks and bi-dir...IJECEIAES
Today, integrating wind energy forecasting is an important area of research due to the erratic nature of wind. To achieve this goal, we propose a new model of wind speed prediction based on graph attention networks (GAT), we added a new attention mechanism and a learnable adjacency matrix to the GAT structure to obtain attention scores for each weather variable. The results of the GAT-based model are merged with the bi-directional deep learning long and short-term memory (BiLSTM) layer to take advantage of the geographic and temporal properties of historical weather data. The experiments and analyzes are carried out using precise meteorological data collected from wind farms in the Moroccan city of Tetouan. We show that the proposed model can learn complex input-output correlations of meteorological data more efficiently than previous wind speed prediction algorithms. Due to the resulting attention weights, the model also provides more information about the main weather factors for the evaluated forecast work.
This document provides an overview of different methods for long-term electric load demand forecasting. It begins with an introduction to the importance of long-term demand forecasting for electric utility planning. It then describes several traditional parametric forecasting methods, including trend analysis, end-use modeling, and econometric modeling. The key differences between these methods are discussed. The document then introduces several artificial intelligence-based methods that have been used for long-term load forecasting, including neural networks, genetic algorithms, fuzzy logic, support vector machines, wavelet networks, and expert systems. Specific network architectures for neural networks that are suitable for long-term load forecasting are also described, such as recurrent neural networks, feed-forward back
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Forecasting electricity usage in industrial applications with gpu acceleratio...Conference Papers
This document compares various exponential smoothing and ARIMA models to forecast electricity usage in an industrial setting using a short time series dataset. It finds that Holt linear trend and Holt linear damped trend models provide the most accurate forecasts for electricity usage in mill production of hammers and pellets based on having the lowest root mean square error values compared to actual usage. GPU acceleration via the RAPIDS framework is used to improve the training and forecasting speed of the models on the short dataset.
Sampling-Based Model Predictive Control of PV-Integrated Energy Storage Syste...Power System Operation
This paper proposes a novel control solution designed to solve the local and grid-connected
distributed energy resources (DERs) management problem by developing a generalizable framework capable
of controlling DERs based on forecasted values and real-time energy prices. The proposed model uses
sampling-based model predictive control (SBMPC), together with the real-time price of energy and forecasts
of PV and load power, to allocate the dispatch of the available distributed energy resources (DERs) while
minimizing the overall cost. The strategy developed aims to nd the ideal combination of solar, grid, and
energy storage (ES) power with the objective of minimizing the total cost of energy of the entire system.
Both ofine and controller hardware-in-the-loop (CHIL) results are presented for a 7-day test case scenario
and compared with two manual base test cases and four baseline optimization algorithms (Genetic Algo-
rithm (GA), Particle Swarm Optimization (PSO), Quadratic Programming interior-point method (QP-IP),
and Sequential Quadratic Programming (SQP)) designed to solve the optimization problem considering the
current status of the system and also its future states. The proposed model uses a 24-hour prediction horizon
with a 15-minute control horizon. The results demonstrate substantial cost and execution time savings when
compared to the other baseline control algorithms.
Wind power prediction using a nonlinear autoregressive exogenous model netwo...IJECEIAES
The monitoring of wind installations is key for predicting their future behavior, due to the strong dependence on weather conditions and the stochastic nature of the wind. However, in some places, in situ measurements are not always available. In this paper, active power predictions for the city of Santa Marta-Colombia using a nonlinear autoregressive exogenous model (NARX) network were performed. The network was trained with a reliable dataset from a wind farm located in Turkey, because the meteorological data from the city of Santa Marta are unavailable or unreliable on certain dates. Three training and testing cases were designed, with different input variables and varying the network target between active power and wind speed. The dataset was obtained from the Kaggle platform, and is made up of five variables: date, active power, wind speed, theoretical power, and wind direction; each with 50,530 samples, which were preprocessed, and in some cases, normalized, to facilitate the neural network learning. For the training, testing and validation processes, a correlation coefficient of 0.9589 was obtained for the best scenario with the data from Turkey, while the best correlation coefficient for the data from Santa Marta was 0.8537.
A Critical Review on Employed Techniques for Short Term Load ForecastingIRJET Journal
This document discusses techniques for short term load forecasting. It begins by defining the importance of load forecasting for electric utilities in planning energy purchasing and generation. It then reviews various short term load forecasting methods including artificial neural networks, fuzzy logic, genetic algorithms, and time series approaches. Finally, it provides details on artificial neural networks and their benefits for load forecasting applications. In summary, the document provides an overview of short term load forecasting and a critical review of techniques such as artificial neural networks, fuzzy logic and genetic algorithms.
This document provides an overview of using neural network techniques in power systems. It discusses how neural networks have been applied to areas like fault diagnosis, security assessment, load forecasting, economic dispatch, and harmonic analysis. The number of published papers in these areas has grown significantly from 1990-1996 to 2000-2005, particularly in load forecasting, fault diagnosis/location, economic dispatch, security assessment, and transient stability. The document then reviews in more detail how neural networks have been applied to load forecasting, fault diagnosis/location, and economic dispatch problems in the power industry.
Power System Reliability Assessment in a Complex Restructured Power SystemIJECEIAES
The basic purpose of an electric power system is to supply its consumers with electric energy as parsimoniously as possible and with a sensible degree of continuity and quality. It is expected that the solicitation of power system reliability assessment in bulk power systems will continue to increase in the future especially in the newly deregulated power diligence. This paper presents the research conducted on the three areas of incorporating multi-state generating unit models, evaluating system performance indices and identifying transmission paucities in complex system adequacy assessment. The incentives for electricity market participants to endow in new generation and transmission facilities are highly influenced by the market risk in a complex restructured environment. This paper also presents a procedure to identify transmission deficiencies and remedial modification in the composite generation and transmission system and focused on the application of probabilistic techniques in composite system adequacy assessment
The document summarizes electricity load forecasting techniques for power system planning. It discusses using curve fitting algorithms to forecast electricity load based on analyzing past load data from 2012. Specifically, it proposes using a Fourier series curve fitting model to predict future load based on factors like temperature, humidity, and time of day or year. The document also briefly describes other common load forecasting techniques including multiple regression, exponential smoothing, and neural networks.
Survey on deep learning applied to predictive maintenance IJECEIAES
Prognosis health monitoring (PHM) plays an increasingly important role in the management of machines and manufactured products in today’s industry, and deep learning plays an important part by establishing the optimal predictive maintenance policy. However, traditional learning methods such as unsupervised and supervised learning with standard architectures face numerous problems when exploiting existing data. Therefore, in this essay, we review the significant improvements in deep learning made by researchers over the last 3 years in solving these difficulties. We note that researchers are striving to achieve optimal performance in estimating the remaining useful life (RUL) of machine health by optimizing each step from data to predictive diagnostics. Specifically, we outline the challenges at each level with the type of improvement that has been made, and we feel that this is an opportunity to try to select a state-of-the-art architecture that incorporates these changes so each researcher can compare with his or her model. In addition, post-RUL reasoning and the use of distributed computing with cloud technology is presented, which will potentially improve the classification accuracy in maintenance activities. Deep learning will undoubtedly prove to have a major impact in upgrading companies at the lowest cost in the new industrial revolution, Industry 4.0.
Economical and Reliable Expansion Alternative of Composite Power System under...IJECEIAES
The paper intends to select the most economical and reliable expansion alternative of a composite power system to meet the expected future load growth. In order to reduce time computational quantity, a heuristic algorithm is adopted for composite power system reliability evaluation is proposed. The proposed algorithm is based on Monte-Carlo simulation method. The reliability indices are estimated for system base case and for the case of adding peaking generation units. The least cost reserve margin for the addition of five 20MW generating units sequentially is determined. Using the proposed algorithm an increment comparison approach used to illustrate the effect of the added units on the interruption and on the annual net gain costs. A flow chart introduced to explain the basic methodology to have an adequate assessment of a power system using Monte Carlo Simulation. The IEEE RTS (24-bus, 38-line) and The Jordanian Electrical Power System (46bus and 92-line) were examined to illustrate how to make decisions in power system planning and expansions.
Short-Term Forecasting of Electricity Consumption in Palestine Using Artifici...ijaia
Nowadays, planning the process of electricity consumption demand is one of the keys success factors for
the development of countries. Due to the importance of electricity, countries have greatly paid attention to
the prediction of electricity consumption. Electricity consumption prediction is a major problem for the
power sector; an efficient prediction will help electrical companies to take the right decisions and to
optimize their supply strategies for their work. In this paper, we proposed a model that is used to predict
the future electricity consumption depending on the previous consumption. This model provides companies
and authorities to know the future information about the electricity consumption, so they can organize their
distribution and make suitable plans to maintain the stability in the delivery and distribution of electricity.
We aim to create a model that will be able to study the previous electricity consumption patterns and use
this data to predict the future electricity consumption. The system analyzes the collected data of electricity
consumption of the previous years, then byusing the mean value for each day and the use of Multilayer
Feed-Forward with Backpropagation Neural Networks (MFFNNBP) as a tool to predict the future
electricity consumption in Palestine. The data used in this paper depends on data collection of months and
years. Finally, this proposed model conducts a systematic process with the aim of determining the future
electricity consumption in Palestine. The proposed application and the result in this paper are developed in
order to contribute to the improvement of the current energy planning tools in Palestine. The experimental
results show that the model performs good results of prediction, with low Mean Square Error (MSE).
A Comparative study on Different ANN Techniques in Wind Speed Forecasting for...IOSRJEEE
There are several available renewable sources of energy, among which Wind Power is the one which is most uncertain in nature. This is because wind speed changes continuously with time leading to uncertainty in availability of amount of wind power generated. Hence, a short-term forecasting of wind speed will help in prior estimation of wind power generation availability for the grid and economic load dispatch.This paper present a comparative study of a Wind speed forecasting model using Artificial Neural Networks (ANN) with three different learning algorithms. ANN is used because it is a non-linear data driven, adaptive and very powerful tool for forecasting purposes. Here an attempt is made to forecast Wind Speed using ANN with Levenberg-Marquard (LM) algorithm, Scaled Conjugate Gradient (SCG) algorithm and Bayesian Regularization (BR) algorithm and their results are compared based on their convergence speed in training period and their performance in testing period on the basis of Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE) and Mean Square Error (MSE).A 48 hour ahead wind speed is forecasted in this work and it is compared with the measured values using all three algorithms and the best out of the three is selected based on minimum error.
IRJET - Intelligent Weather Forecasting using Machine Learning TechniquesIRJET Journal
This document discusses using machine learning techniques to forecast weather intelligently. It proposes using multi-target regression and recurrent neural network (RNN) models trained on historical weather data from Bangalore to predict future weather conditions like temperature, humidity, and precipitation. The data is first preprocessed before being fed to the models. The models are evaluated to accurately predict weather in the short term to help people like farmers and commuters without relying on expensive equipment.
Similar to Short term residential load forecasting using long short-term memory recurrent neural network (20)
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Neural network optimizer of proportional-integral-differential controller par...IJECEIAES
Wide application of proportional-integral-differential (PID)-regulator in industry requires constant improvement of methods of its parameters adjustment. The paper deals with the issues of optimization of PID-regulator parameters with the use of neural network technology methods. A methodology for choosing the architecture (structure) of neural network optimizer is proposed, which consists in determining the number of layers, the number of neurons in each layer, as well as the form and type of activation function. Algorithms of neural network training based on the application of the method of minimizing the mismatch between the regulated value and the target value are developed. The method of back propagation of gradients is proposed to select the optimal training rate of neurons of the neural network. The neural network optimizer, which is a superstructure of the linear PID controller, allows increasing the regulation accuracy from 0.23 to 0.09, thus reducing the power consumption from 65% to 53%. The results of the conducted experiments allow us to conclude that the created neural superstructure may well become a prototype of an automatic voltage regulator (AVR)-type industrial controller for tuning the parameters of the PID controller.
An improved modulation technique suitable for a three level flying capacitor ...IJECEIAES
This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed
simplified modulation technique paves the way for more straightforward and
efficient control of multilevel inverters, enabling their widespread adoption and
integration into modern power electronic systems. Through the amalgamation of
sinusoidal pulse width modulation (SPWM) with a high-frequency square wave
pulse, this controlling technique attains energy equilibrium across the coupling
capacitor. The modulation scheme incorporates a simplified switching pattern
and a decreased count of voltage references, thereby simplifying the control
algorithm.
A review on features and methods of potential fishing zoneIJECEIAES
This review focuses on the importance of identifying potential fishing zones in seawater for sustainable fishing practices. It explores features like sea surface temperature (SST) and sea surface height (SSH), along with classification methods such as classifiers. The features like SST, SSH, and different classifiers used to classify the data, have been figured out in this review study. This study underscores the importance of examining potential fishing zones using advanced analytical techniques. It thoroughly explores the methodologies employed by researchers, covering both past and current approaches. The examination centers on data characteristics and the application of classification algorithms for classification of potential fishing zones. Furthermore, the prediction of potential fishing zones relies significantly on the effectiveness of classification algorithms. Previous research has assessed the performance of models like support vector machines, naïve Bayes, and artificial neural networks (ANN). In the previous result, the results of support vector machine (SVM) were 97.6% more accurate than naive Bayes's 94.2% to classify test data for fisheries classification. By considering the recent works in this area, several recommendations for future works are presented to further improve the performance of the potential fishing zone models, which is important to the fisheries community.
Electrical signal interference minimization using appropriate core material f...IJECEIAES
As demand for smaller, quicker, and more powerful devices rises, Moore's law is strictly followed. The industry has worked hard to make little devices that boost productivity. The goal is to optimize device density. Scientists are reducing connection delays to improve circuit performance. This helped them understand three-dimensional integrated circuit (3D IC) concepts, which stack active devices and create vertical connections to diminish latency and lower interconnects. Electrical involvement is a big worry with 3D integrates circuits. Researchers have developed and tested through silicon via (TSV) and substrates to decrease electrical wave involvement. This study illustrates a novel noise coupling reduction method using several electrical involvement models. A 22% drop in electrical involvement from wave-carrying to victim TSVs introduces this new paradigm and improves system performance even at higher THz frequencies.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Bibliometric analysis highlighting the role of women in addressing climate ch...IJECEIAES
Fossil fuel consumption increased quickly, contributing to climate change
that is evident in unusual flooding and draughts, and global warming. Over
the past ten years, women's involvement in society has grown dramatically,
and they succeeded in playing a noticeable role in reducing climate change.
A bibliometric analysis of data from the last ten years has been carried out to
examine the role of women in addressing the climate change. The analysis's
findings discussed the relevant to the sustainable development goals (SDGs),
particularly SDG 7 and SDG 13. The results considered contributions made
by women in the various sectors while taking geographic dispersion into
account. The bibliometric analysis delves into topics including women's
leadership in environmental groups, their involvement in policymaking, their
contributions to sustainable development projects, and the influence of
gender diversity on attempts to mitigate climate change. This study's results
highlight how women have influenced policies and actions related to climate
change, point out areas of research deficiency and recommendations on how
to increase role of the women in addressing the climate change and
achieving sustainability. To achieve more successful results, this initiative
aims to highlight the significance of gender equality and encourage
inclusivity in climate change decision-making processes.
Voltage and frequency control of microgrid in presence of micro-turbine inter...IJECEIAES
The active and reactive load changes have a significant impact on voltage
and frequency. In this paper, in order to stabilize the microgrid (MG) against
load variations in islanding mode, the active and reactive power of all
distributed generators (DGs), including energy storage (battery), diesel
generator, and micro-turbine, are controlled. The micro-turbine generator is
connected to MG through a three-phase to three-phase matrix converter, and
the droop control method is applied for controlling the voltage and
frequency of MG. In addition, a method is introduced for voltage and
frequency control of micro-turbines in the transition state from gridconnected mode to islanding mode. A novel switching strategy of the matrix
converter is used for converting the high-frequency output voltage of the
micro-turbine to the grid-side frequency of the utility system. Moreover,
using the switching strategy, the low-order harmonics in the output current
and voltage are not produced, and consequently, the size of the output filter
would be reduced. In fact, the suggested control strategy is load-independent
and has no frequency conversion restrictions. The proposed approach for
voltage and frequency regulation demonstrates exceptional performance and
favorable response across various load alteration scenarios. The suggested
strategy is examined in several scenarios in the MG test systems, and the
simulation results are addressed.
Enhancing battery system identification: nonlinear autoregressive modeling fo...IJECEIAES
Precisely characterizing Li-ion batteries is essential for optimizing their
performance, enhancing safety, and prolonging their lifespan across various
applications, such as electric vehicles and renewable energy systems. This
article introduces an innovative nonlinear methodology for system
identification of a Li-ion battery, employing a nonlinear autoregressive with
exogenous inputs (NARX) model. The proposed approach integrates the
benefits of nonlinear modeling with the adaptability of the NARX structure,
facilitating a more comprehensive representation of the intricate
electrochemical processes within the battery. Experimental data collected
from a Li-ion battery operating under diverse scenarios are employed to
validate the effectiveness of the proposed methodology. The identified
NARX model exhibits superior accuracy in predicting the battery's behavior
compared to traditional linear models. This study underscores the
importance of accounting for nonlinearities in battery modeling, providing
insights into the intricate relationships between state-of-charge, voltage, and
current under dynamic conditions.
Smart grid deployment: from a bibliometric analysis to a surveyIJECEIAES
Smart grids are one of the last decades' innovations in electrical energy.
They bring relevant advantages compared to the traditional grid and
significant interest from the research community. Assessing the field's
evolution is essential to propose guidelines for facing new and future smart
grid challenges. In addition, knowing the main technologies involved in the
deployment of smart grids (SGs) is important to highlight possible
shortcomings that can be mitigated by developing new tools. This paper
contributes to the research trends mentioned above by focusing on two
objectives. First, a bibliometric analysis is presented to give an overview of
the current research level about smart grid deployment. Second, a survey of
the main technological approaches used for smart grid implementation and
their contributions are highlighted. To that effect, we searched the Web of
Science (WoS), and the Scopus databases. We obtained 5,663 documents
from WoS and 7,215 from Scopus on smart grid implementation or
deployment. With the extraction limitation in the Scopus database, 5,872 of
the 7,215 documents were extracted using a multi-step process. These two
datasets have been analyzed using a bibliometric tool called bibliometrix.
The main outputs are presented with some recommendations for future
research.
Use of analytical hierarchy process for selecting and prioritizing islanding ...IJECEIAES
One of the problems that are associated to power systems is islanding
condition, which must be rapidly and properly detected to prevent any
negative consequences on the system's protection, stability, and security.
This paper offers a thorough overview of several islanding detection
strategies, which are divided into two categories: classic approaches,
including local and remote approaches, and modern techniques, including
techniques based on signal processing and computational intelligence.
Additionally, each approach is compared and assessed based on several
factors, including implementation costs, non-detected zones, declining
power quality, and response times using the analytical hierarchy process
(AHP). The multi-criteria decision-making analysis shows that the overall
weight of passive methods (24.7%), active methods (7.8%), hybrid methods
(5.6%), remote methods (14.5%), signal processing-based methods (26.6%),
and computational intelligent-based methods (20.8%) based on the
comparison of all criteria together. Thus, it can be seen from the total weight
that hybrid approaches are the least suitable to be chosen, while signal
processing-based methods are the most appropriate islanding detection
method to be selected and implemented in power system with respect to the
aforementioned factors. Using Expert Choice software, the proposed
hierarchy model is studied and examined.
Enhancing of single-stage grid-connected photovoltaic system using fuzzy logi...IJECEIAES
The power generated by photovoltaic (PV) systems is influenced by
environmental factors. This variability hampers the control and utilization of
solar cells' peak output. In this study, a single-stage grid-connected PV
system is designed to enhance power quality. Our approach employs fuzzy
logic in the direct power control (DPC) of a three-phase voltage source
inverter (VSI), enabling seamless integration of the PV connected to the
grid. Additionally, a fuzzy logic-based maximum power point tracking
(MPPT) controller is adopted, which outperforms traditional methods like
incremental conductance (INC) in enhancing solar cell efficiency and
minimizing the response time. Moreover, the inverter's real-time active and
reactive power is directly managed to achieve a unity power factor (UPF).
The system's performance is assessed through MATLAB/Simulink
implementation, showing marked improvement over conventional methods,
particularly in steady-state and varying weather conditions. For solar
irradiances of 500 and 1,000 W/m2
, the results show that the proposed
method reduces the total harmonic distortion (THD) of the injected current
to the grid by approximately 46% and 38% compared to conventional
methods, respectively. Furthermore, we compare the simulation results with
IEEE standards to evaluate the system's grid compatibility.
Enhancing photovoltaic system maximum power point tracking with fuzzy logic-b...IJECEIAES
Photovoltaic systems have emerged as a promising energy resource that
caters to the future needs of society, owing to their renewable, inexhaustible,
and cost-free nature. The power output of these systems relies on solar cell
radiation and temperature. In order to mitigate the dependence on
atmospheric conditions and enhance power tracking, a conventional
approach has been improved by integrating various methods. To optimize
the generation of electricity from solar systems, the maximum power point
tracking (MPPT) technique is employed. To overcome limitations such as
steady-state voltage oscillations and improve transient response, two
traditional MPPT methods, namely fuzzy logic controller (FLC) and perturb
and observe (P&O), have been modified. This research paper aims to
simulate and validate the step size of the proposed modified P&O and FLC
techniques within the MPPT algorithm using MATLAB/Simulink for
efficient power tracking in photovoltaic systems.
Adaptive synchronous sliding control for a robot manipulator based on neural ...IJECEIAES
Robot manipulators have become important equipment in production lines, medical fields, and transportation. Improving the quality of trajectory tracking for
robot hands is always an attractive topic in the research community. This is a
challenging problem because robot manipulators are complex nonlinear systems
and are often subject to fluctuations in loads and external disturbances. This
article proposes an adaptive synchronous sliding control scheme to improve trajectory tracking performance for a robot manipulator. The proposed controller
ensures that the positions of the joints track the desired trajectory, synchronize
the errors, and significantly reduces chattering. First, the synchronous tracking
errors and synchronous sliding surfaces are presented. Second, the synchronous
tracking error dynamics are determined. Third, a robust adaptive control law is
designed,the unknown components of the model are estimated online by the neural network, and the parameters of the switching elements are selected by fuzzy
logic. The built algorithm ensures that the tracking and approximation errors
are ultimately uniformly bounded (UUB). Finally, the effectiveness of the constructed algorithm is demonstrated through simulation and experimental results.
Simulation and experimental results show that the proposed controller is effective with small synchronous tracking errors, and the chattering phenomenon is
significantly reduced.
Remote field-programmable gate array laboratory for signal acquisition and de...IJECEIAES
A remote laboratory utilizing field-programmable gate array (FPGA) technologies enhances students’ learning experience anywhere and anytime in embedded system design. Existing remote laboratories prioritize hardware access and visual feedback for observing board behavior after programming, neglecting comprehensive debugging tools to resolve errors that require internal signal acquisition. This paper proposes a novel remote embeddedsystem design approach targeting FPGA technologies that are fully interactive via a web-based platform. Our solution provides FPGA board access and debugging capabilities beyond the visual feedback provided by existing remote laboratories. We implemented a lab module that allows users to seamlessly incorporate into their FPGA design. The module minimizes hardware resource utilization while enabling the acquisition of a large number of data samples from the signal during the experiments by adaptively compressing the signal prior to data transmission. The results demonstrate an average compression ratio of 2.90 across three benchmark signals, indicating efficient signal acquisition and effective debugging and analysis. This method allows users to acquire more data samples than conventional methods. The proposed lab allows students to remotely test and debug their designs, bridging the gap between theory and practice in embedded system design.
Detecting and resolving feature envy through automated machine learning and m...IJECEIAES
Efficiently identifying and resolving code smells enhances software project quality. This paper presents a novel solution, utilizing automated machine learning (AutoML) techniques, to detect code smells and apply move method refactoring. By evaluating code metrics before and after refactoring, we assessed its impact on coupling, complexity, and cohesion. Key contributions of this research include a unique dataset for code smell classification and the development of models using AutoGluon for optimal performance. Furthermore, the study identifies the top 20 influential features in classifying feature envy, a well-known code smell, stemming from excessive reliance on external classes. We also explored how move method refactoring addresses feature envy, revealing reduced coupling and complexity, and improved cohesion, ultimately enhancing code quality. In summary, this research offers an empirical, data-driven approach, integrating AutoML and move method refactoring to optimize software project quality. Insights gained shed light on the benefits of refactoring on code quality and the significance of specific features in detecting feature envy. Future research can expand to explore additional refactoring techniques and a broader range of code metrics, advancing software engineering practices and standards.
Smart monitoring technique for solar cell systems using internet of things ba...IJECEIAES
Rapidly and remotely monitoring and receiving the solar cell systems status parameters, solar irradiance, temperature, and humidity, are critical issues in enhancement their efficiency. Hence, in the present article an improved smart prototype of internet of things (IoT) technique based on embedded system through NodeMCU ESP8266 (ESP-12E) was carried out experimentally. Three different regions at Egypt; Luxor, Cairo, and El-Beheira cities were chosen to study their solar irradiance profile, temperature, and humidity by the proposed IoT system. The monitoring data of solar irradiance, temperature, and humidity were live visualized directly by Ubidots through hypertext transfer protocol (HTTP) protocol. The measured solar power radiation in Luxor, Cairo, and El-Beheira ranged between 216-1000, 245-958, and 187-692 W/m 2 respectively during the solar day. The accuracy and rapidity of obtaining monitoring results using the proposed IoT system made it a strong candidate for application in monitoring solar cell systems. On the other hand, the obtained solar power radiation results of the three considered regions strongly candidate Luxor and Cairo as suitable places to build up a solar cells system station rather than El-Beheira.
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Short term residential load forecasting using long short-term memory recurrent neural network
1. International Journal of Electrical and Computer Engineering (IJECE)
Vol. 12, No. 5, October 2022, pp. 5589~5599
ISSN: 2088-8708, DOI: 10.11591/ijece.v12i5.pp5589-5599 5589
Journal homepage: http://ijece.iaescore.com
Short term residential load forecasting using long short-term
memory recurrent neural network
Amgad Muneer1
, Rao Faizan Ali2
, Ahmed Almaghthawi3
, Shakirah Mohd Taib1
, Amal Alghamdi3
,
Ebrahim Abdulwasea Abdullah Ghaleb1
1
Department of Computer and Information Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
2
Department of Computer Science, University of Management and Technology, Lahore, Pakistan
3
Department of Computer Science and Artificial Intelligence, University of Jeddah, Jeddah, Saudi Arabia
Article Info ABSTRACT
Article history:
Received Jul 15, 2021
Revised Apr 24, 2022
Accepted May 20, 2022
Load forecasting plays an essential role in power system planning. The
efficiency and reliability of the whole power system can be increased with
proper planning and organization. Residential load forecasting is
indispensable due to its increasing role in the smart grid environment.
Nowadays, smart meters can be deployed at the residential level for
collecting historical data consumption of residents. Although the
employment of smart meters ensures large data availability, the
inconsistency of load data makes it challenging and taxing to forecast
accurately. Therefore, the traditional forecasting techniques may not suffice
the purpose. However, a deep learning forecasting network-based long
short-term memory (LSTM) is proposed in this paper. The powerful
nonlinear mapping capabilities of RNN in time series make it effective along
with the higher learning capabilities of long sequences of LSTM. The
proposed method is tested and validated through available real-world data
sets. A comparison of LSTM is then made with two traditionally available
techniques, exponential smoothing and auto-regressive integrated moving
average model (ARIMA). Real data from 12 houses over three months is
used to evaluate and validate the performance of load forecasts performed
using the three mentioned techniques. LSTM model has achieved the best
results due to its higher capability of memorizing large data in time series-
based predictions.
Keywords:
Auto-regressive integrated
moving average model
Exponential smoothing
Long short-term memory
Power system planning
Short term load forecast
residential load
This is an open access article under the CC BY-SA license.
Corresponding Author:
Amgad Muneer
Department of Computer and Information Sciences, Universiti Teknologi PETRONAS
32610 Seri Iskandar, Perak, Malaysia
Email: muneeramgad@gmail.com
1. INTRODUCTION
Due to the increased penetration of renewables and rapid power system growth, the complexity of
the system has been significantly expanding [1], [2]. The variable and erratic nature of residential load
consumption data make it challenging for the forecasts. Forecasting is the process of making predictions of
the future, based on past and present data and most commonly by analyzing trends. Load forecasting refers to
the prediction of power demand behavior for maintaining a balance between supply and demand. Load
forecasting plays an essential role in the upfront planning and organization of the power system [3], [4].
Power system planning and reliability require accurate load forecasts for upfront planning of
generation facilities, managing transmission line structures, properly controlling distribution systems,
encouraging demand response (DR) programs, and participating in day-ahead electricity markets. The nature
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of load consumption data is primarily time series based, and forecasting is used to predict time series-based
information. These time series-based data have some output value corresponding to continuous and
consecutive time sequences. Based on the nature of forecasting, techniques used for forecasting load demand
can be broadly divided into two types, i) extrapolation and ii) correlation. Extrapolation refers to time series
methods based on historical and present demand; future load demand is predicted. Forecasting based on
correlation can be further divided into two types, econometric and determination to identify underlying
factors that might affect load demand. In econometric forecasting, economic factors affecting the load profile
such as pricing. are used for forecasting, whereas underlying factors that might contribute to the load demand
includes temperature, weather, holidays, and events. are utilized for accurate load prediction. Based on the
time duration of load forecasting, it can be classified into three types, short-term forecasts [5], [6],
intermediate or medium-term forecasts [7].
Short-term forecasts primarily span over a few hours to several weeks, whereas medium and long-
term forecasts refer to the prediction of load demand over several months and years, respectively [8]. Long-
term forecasts are needed for the maintenance and scheduling of the power system, whereas medium-term
forecasts enable fuel scheduling and hydro reservoir management. For the day-to-day and weekly operations
of the power system, short-term load forecasts play an essential role. Short-term load forecasting is a time
series-based prediction problem, and its vital role cannot be ignored in a smart grid environment [9].
Accurate and time-efficient load forecasting algorithms and techniques are a need of the hour. These
techniques are primarily based on various machine learning algorithms in the smart grids ecosystem. Data
monitoring of historically available data for a particular location considering the transient effects of weather
over this load demand is an essential requirement from the perspective of different small power producers
and end-users in commercial or industrial buildings.
Several forecasting methods have been proposed over the past few years. The forecasting can divide
into two models physical model and statistical model. The physical model needs measured data with good
quality, and the statistical model needs historical data. The artificial neural network (ANN) model and auto-
regressive integrated moving average (ARIMA) model belong to statistical modeling [10]. Box-Jenkins’s
approach [11] is an effective tool to identify parameters in time series while Kalman filter [12] technique,
also a parametric model, both model based on historical data. The widely used single models include fuzzy
logic, ANN [13], support vector machine (SVM) [14], [15], wavelet transform (WT), genetic algorithm, and
expert system. The hybrid system is to integrate one or more algorithms to get more forecasting accuracy
[16]. Therefore, with the arrival of the Covid-19 pandemic [17], people are forced to stay at their own
residential houses more, which increases the electric load demand. Motivated by this, we attempt to predict
the electric load demand. In this paper, three techniques have been chosen to forecast the electric load
demand of residential houses. These techniques comprise of ANN model, ARIMA [18], [19], and
exponential smoothing. In ANN, a sub-type recurrent neural network (RNN) [20] is used with some
parameters and optimizer, whereas the other two techniques are used for comparison. For a fair comparison
among these algorithms, data is acquired from 12 houses over a period of 3 consecutive months of a
particular year. The real-world data is collected both from the real world and available online resources [21].
For ANN and ARIMA, the collected data set is divided into training and testing data set.
This paper is organized as follows. Section 2 presents a comprehensive analysis of used algorithms,
and the details of the proposed model of long short-term memory (LSTM) are discussed. Section 3 describes
the characteristics and nature of the data set utilized and discusses a comparison performed over the data set
based on the results of three algorithms. Section 4 provides the model performance evaluation, and finally,
section 5 concludes the paper.
2. RESEARCH METHOD
This section provides the dataset description and the research methodology used in this study. The
first section focuses on the data collection, while the remaining section focuses on exponential smoothing.
Auto-regressive integrated moving average, and the proposed LSTM model, respectively.
2.1. Data collection and description
Data is collected from two sources; source 1 data set consists of load consumption of 2 volunteer’s
houses in one month, from March 2018 to April 2018, with a granularity of data being one hour, giving a
total number of hours calculated as 745. For LSTM and ARIMA, data is divided into two parts; i) for
training, 65% of data is used and ii) for testing, 35% of data is used. Source 2 data set consists of load
consumption of 10 houses for the period of 3 consecutive months. This data is collected from available online
resources [22]. The granularity of the acquired data was 5 minutes, but for comparison purposes, the time
interval used is one hour, giving the total number of hours as 2,184. For ARIMA and LSTM models [23],
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[13], data is divided into two parts as previously done for volunteer houses i.e., 65% of data is used for
training, and 35% of the dataset is utilized for testing 5. Therefore, this paper uses three machine learning
techniques for time series-based predictions and comparisons. These three methods are discussed in the
following subsections.
2.2. Exponential smoothing
The exponential smoothing scheme uses exponentially decreasing weights to smooth past
observations; it is a popular way to produce smoothed time series [24]. When the observation gets older, the
weights decrease exponentially. 1/N is the weight assigned to the observations in moving averages. When
applying exponential smoothing, it is necessary to determine (or estimate) at least one smoothing parameter
and determine which weights should be assigned to each observation [25]. The smoothing parameter is
alpha. Forecasting the next point as (1):
st+1=(α∗yt)+(1−α)∗st (1)
where, st+1 is predicted value at time t+1, α is a parameter that decide the weightage of predicted and actual
output, and yt is actual output at time (1) can be written as (2):
st+1=st+α∗st (2)
where, st is the forecast error (actual-forecast) for time period t. Specifically, the new forecast is the old one
plus an adjustment for the error that occurred in the last forecast [26]. Forgiven data set, forecasting α=0.5 is
used. Exponential smoothing does not require any training. It is good only for comparison purposes.
2.3. Auto-regressive integrated moving average (ARIMA)
It combines auto-regressive (AR) and moving average (MA) models. The I stand for "integrated"
represents the fact that the data have been substituted with a number, which is the difference between their
values and the foregoing values [27]. ARIMA (p, d, q) [28] can be used to represent non-seasonal ARIMA. P
is order (number of time lags) of the auto-regressive model, d is degree of difference (the number of times the
data subtracted from past value), q is order of the moving-average model.
If d = 0: yt = yt
If d = 1: yt = yt - yt1
If d = 2: yt = yt - (yt1) yt1 - yt2
Where, yt is actual output at any time (t). And d is the degree, which represents the influence of past time at
level d [26]. Forgiven data set forecasting p=3, d=2 and q=0 is used. Figure 1 shows the flow that is used to
run the ARIMA algorithm.
Figure 1. Flow chart for ARIMA algorithm
2.4. Deep learning neural networks (DLNN)
It is a nonlinear model where any prior knowledge of the relationship between input and output is
needed [29]. Therefore, DLNN gives good results for pattern recognition [30], [31], sequence prediction [32],
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[33] and forecasting problems [34]. The main parameters of DLNN are the number of input vectors, the
number of layers, the number of neurons in each layer. In this paper, for forecasting load demand of multiple
residential buildings, RNN is used among all the techniques due to its feasibility and nature of the load
forecast. Additionally, the human mind does not begin from scratch every second. It makes use of previous
knowledge to come up with answers and analyze problems. This is a major shortcoming of traditional neural
networks [35]. Consider an example where you want to categorize the events that occur in a movie. It is
unclear how a conventional neural network could use earlier occurrences in the film to inform subsequent
events [36]. This issue is addressed by recurrent neural networks. They are networks that contain loops,
which enable information to endure [37], [38].
Figure 2 shows a chunk of the neural network is depicted with an input xt and an output ht. A loop
enables data to be transmitted from one network stage to the LSTM. The LSTM algorithm is a type of RNN
that is capable of learning long-term dependencies. All recurrent neural networks have the form of a chain of
neural network modules. In standard RNNs, this repeating module will have a simple structure [39].
Figure 3(a) can be described as; ft, ct, ot, and it is activation functions for hidden, context, output, and input
layers, respectively. All these are sigmoid functions, where t represents time instance, ht is output at time t, xt
is input at time t, Bias values (bo (output bias), bi is the input bias, and bf Hidden layer bias, Crosses(X)
represents multiplication operation, and T represents the activation function.
2.5. Proposed model of LSTM
LSTM is used to forecast the given data set and root mean square propagation (RMSprop) optimizer
to propagate the error. In which learning rate=0.1, decay=0.9, momentum=0.0, epsilon=1 e−10
. The learning
rate is step size, whereas decay is discounting factor for the history/coming gradient. Momentum is a
floating-point value, which helps to avoid getting stuck in the local minimum. Epsilon is a small value to
avoid zero denominators. Four active hidden nodes and three active context nodes with one layer is used. A
deep learning tool TensorFlow [31] is used to add the LSTM model. The tensor flow determines activation
functions and bias values. Figure 3(b) shows the flow of LSTM. Mean absolute error (MAE) is computed for
accuracy measure using (3) [40].
𝑀𝐴𝐸 =
1
𝑛
∑ |𝑋𝑃 − 𝑋|
𝑛 (3)
Figure 2. Recurrent neural network architecture [34]
(a) (b)
Figure 3. Illustrations of (a) LSTM model architecture and (b) algorithm flow chart for LSTM
5. Int J Elec & Comp Eng ISSN: 2088-8708
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3. EXPERIMENTAL RESULTS AND DISCUSSION
The experimental results used in this study are discussed in detail in this section for both real-world
and benchmark datasets. The first section is providing the LSTM model testing results with source 1 houses.
While section 2 provides the source 1 houses results using ARIMA model and the last section shows the
results using the exponential smoothing technique.
3.1. Source 1 houses results using LSTM
From Figure 4 (a), it can be seen that predicted load behavior is similar to the tested load demand,
but the foretasted values differ appreciably from the original load values. It can be concluded that due to a
large variety of load patterns with respect to increasing time intervals, it becomes difficult for the model to
predict the actual or approximately actual load demand for the tested time period. Figure 4(b) signifies that
where the load nature of the profile is relatively consistent, the results obtained are quite proximate to the
original data. Further, Figure 5 also shows that even though the nature of the aggregated residential load is
erratic, forecasting through LSTM gives quite reasonable approximates to the original values.
(a) (b)
Figure 4. Illustrations of (a) LSTM results for house 1 and (b) LSTM results for house 2
Figure 5. LSTM results for aggregated load of house 1 and house 2
3.2. Source 1 houses results using ARIMA
As presented in Figures 6(a) and 6(b) and Figure 7, it can be verified that accepting the values,
ARIMA [36], perform like LSTM. The trend of load pattern is maintained in the tested results, but the tested
values differ significantly from the original data. These results obtained from ARIMA manifest that LSTM
models outperform them for individual and aggregated residential load demand.
3.3. Exponential smoothing results source 1
Figures 8(a) and 8(b) and Figure 9 show the testing results based on the exponential smoothing
technique. These results show that the load profile is maintained during the testing compared to the original
values. Exponential smoothing performs better than ARIMA, but results confirm that LSTM performance is
better than both algorithms. Further, to validate the results, analysis is performed for ten more individual
houses over three months. As mentioned earlier, data is collected through available online resources, and
evaluation is done for the time granularity of one hour. The details of training and testing data sets are similar
to the source 1 data i.e., 65% of data is used for training purposes, and the rest of the data is used for
validation and testing the results.
Original
Original
Original
Predicted Test
Predicted Test
Predicted Test
6. ISSN: 2088-8708
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(a) (b)
Figure 6. Illustrations of (a) ARIMA results of house 1 and (b) ARIMA results of house 2
Figure 7. ARIMA results for aggregated load of house 1 and house 2
(a) (b)
Figure 8. Illustrations of (a) exponential smoothing results for house 1 and (b) exponential smoothing results
for house 2
Figure 9. Exponential smoothing results for aggregated load of house 1 and house 2
Original
Original
Original
Original
Original
Original
Predicted Test
Predicted Test
Predicted Test
Predicted Test
Predicted Test
Predicted Test
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4. PROPOSED MODEL EVALUATION
Table 1 shows a comparison among techniques used based on MAE values for source 1. It justifies
the use of LSTM as a novel and effective method for accurate and precise load forecasts. LSTM proves to be
the best among the available algorithms for time series-based predictions for individual and aggregated
residential load demands. MAE rationalizes the fact that the on average lowest possible error is obtained
from its results and analysis. ARIMA and exponential smoothing provide quite acceptable results based on
MAE, but precise and exact load forecasts are quite necessary for the smart grid environment. To encourage
the users or consumers to participate in DR based programs, actual or near actual load demand must be
known so that control action can be correspondingly initiated for maintaining a balance between supply and
demand. Further, to engage customers in day-ahead electricity markets, the utility and customer must know
accurate load information. Consequently, the application of LSTM models for time series-based load forecasts can
prove to be a viable solution to all the mentioned problems.
Table 1. Compression among proposed algorithms using MAE for source 1 (volunteer houses)
House# LSTM (MAE) ARIMA (MAE) Smoothing (MAE)
House 1 4.8679 10.8033 13.0061
House 2 6.8028 15.2129 16.2681
Aggregated 2.4473 14.6014 16.7663
Additionally, the proposed three models have been further validated using an online benchmark
dataset for 10 different houses. Some of the LSTM forecasting results for source two are shown in
Figures 10(a) and 10(b). LSTM gives quite accurate and exact results when compared with the original
values. It can be observed that where the nature of the load profile is volatile, the tested results deviate from
the actual values quite significantly. Although the load pattern or load curve is precisely replicated in all
scenarios as shown in the results of LSTM, whether the load demand curve is erratic or consistent, the
predicted values differ notably where the load demand becomes inconsistent. Figures 10(a) and 10(b)
presented an example of the forecasting results obtained using LSTM for two random cases for house one
and house 5 in the second dataset
(a) (b)
Figure 10. An example of (a) LSTM results for house 1 and (b) LSTM results for house 5
Figures 11(a) and 11(b) shows that exponential smoothing does not perform very acceptably. The
results are not accurate and exact; rather, only a similar trend as original data is observed. Thus, it serves
inferior to the other two models, LSTM and ARIMA. The consideration here to make is that LSTM performs
better on average for all the houses and proves to be the prime choice for time series-based load forecasts.
Table 2 shows compassion between the three technologies used, exponential smoothing, ARIMA,
and LSTM, based on MAE calculated for all ten houses. It signifies the fact that due to, on average lowest
values of MAE for LSTM, it substantiates as the viable algorithm for accurate and precise load demand
predictions. Further, ARIMA performs better than exponential smoothing due to the autoregressive and
integrated nature of the used algorithm. Exponential smoothing can only be used for load forecast at
immediate next time interval based on the historical load demand values, but it cannot predict weekly or
monthly load demands based on the past load data values and trends. As presented in the comparative
analysis in Table 2, the LSTM method has outperformed the other two methods in all the houses load
predictions in term of MAE.
Original
Original
Predicted Test
Predicted Test
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(a) (b)
Figure 11. An example of (a) exponential smoothing results for house 3 and (b) exponential smoothing
results for house 6
Table 2. Compression between proposed algorithms using MAE for source 2 (benchmark dataset)
House# LSTM (MAE) ARIMA (MAE) Smoothing (MAE)
House 1 36.133 40.330 54.994
House 2 65.232 95.687 108.363
House 3 74.937 98.490 142.259
House 4 2.049 2.434 3.224
House 5 9.1396 10.877 16.031
House 6 11.365 13.708 14.117
House 7 11.812 13.705 14.142
House 8 112.242 137.198 124.569
House 9 25.603 32.433 36.896
House 10 35.812 48.524 50.648
For short-term residential load forecasting, we were unable to obtain any study contribution that
were evaluated on the same experimental scenario. However, we have compared the results with the two
recently proposed approaches for short-term residential load forecasting [4], [6], [8] shown in Table 3. This
study presents comparisons for only available metrics, but essentially demonstrates to the reader the
promising results of the proposed model.
Table 3. A comparison of the approach proposed with relevant literature contribution
House# LSTM (MAPE) ARIMA (MAPE) Smoothing (MAPE)
Proposed model 22.13 28.63 42.97
Kong et al. [4] 44.39 % N/A N/A
Kong et al. [6] 21.99% N/A N/A
Nair et al. [8] N/A 54.61% N/A
5. CONCLUSION
This paper proposes a novel model based-LSTM technique for accurate and precise short-term load
forecasts. The suggested model is validated and compared with the other two models, exponential smoothing
and ARIMA, based on MAE performance evaluation metrics. LSTM models, due to their higher capability of
memorizing large data establish their utilization in time series-based predictions. Results from both source 1
and source 2 confirm that LSTM outperforms all other models keeping in view the erratic and volatile nature
of residential load demand. It can be inferred that accurate load forecasts are required to encourage customers
to participate in DR programs.
Moreover, for engaging customers in day-ahead electricity markets, load forecasting proves to be
very pertinent to the problems arising in the smart grid environment. LSTM model and the data from smart
progressed meters ensure the power system's valid and effective planning and operation. Further, the
technique can be extended for application in home area networks (HAN), enabling smart energy management
of individual devices within a home.
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BIOGRAPHIES OF AUTHORS
Amgad Muneer received the B.Eng. degree (Hons.) in mechatronic
engineering from the Asia Pacific University of Technology and Innovation (APU),
Malaysia, in 2018. He is currently pursuing the master’s degree in information technology
with Universiti Teknologi PETRONAS, Malaysia. He has authored several ISI and Scopus
journal articles/conference papers. He is currently working as a Research Officer with the
Department of Computer and information Sciences, University Technology Petronas, Perak,
Malaysia. His research interests include machine and deep learning, image processing, the
Internet of Things, computer vision, and condition monitoring. He is a Reviewer in some
international impact-factor journals, and he has published more than 30 scientific
publications. He can be contacted at email: muneeramgad@gmail.com.
Rao Faizan Ali received the bachelor’s degree in computer science from
COMSATS University Islamabad, Pakistan, and the M.Phil. degree in computer science
from the University of Management and Technology, Lahore, Pakistan. He is currently
pursuing the Ph.D. degree with University Technology PETRONAS, Malaysia. He has eight
years of experience in teaching and research. He has been with various computer science
positions in financial, consulting, academia, and government sectors. He is currently
working as a Research Officer with the Department of Computer and information Sciences,
University Technology Petronas, Perak, Malaysia. He can be contacted at email:
rao_16001107@utp.edu.my.
Ahmed Almaghthawi received his bachelor’s degree in Computer Science
from Taibah University in 2015. He has a master’s degree in the program computer science
and artificial intelligence at Jeddah University. Currently, he works as adjunct lecturer at
college of computer science and artificial intelligence at Jeddah university. His scientific
interests are related to artificial intelligence, image and video processing, machine learning,
and in IoT. He can be contacted at email: ahmed.almaghthawi.1991@gmail.com.
Shakirah Mohd Taib is a lecturer and researcher at Centre for Research in
Data Science (CeRDaS) in Universiti Teknologi PETRONAS (UTP), Malaysia. She
obtained a bachelor’s degree in information technology from Universiti Utara Malaysia and
Master of Computing from University of Tasmania, Australia. She has more than 15 years
working experience at Universiti Teknologi Petronas (UTP). Her area of specialization
includes data science, machine learning, knowledge discovery and information retrieval
using Artificial Intelligence techniques. Shakirah is a member of international organization
such as IEEE, Malaysia Board of Technologists (MBOT) and Association for Information
Systems (AIS). She can be contacted at email: shakita@utp.edu.my.
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Amal Alghamdi Currently, she is a master student in computer science and
artificial intelligence at Jeddah University. She received her bachelor’s degree in Computer
Science from the Al-Baha University in 2014. her interests in artificial intelligence, machine
learning and deep learning. She can be contacted at email: dr.amal.alghamdi@gmail.com.
Ebrahim Abdulwasea Abdullah Ghaleb received the B.Sc. and M.Sc.
Bachelor of information technology (Hons) in Networking Technology Infrastructure
University Kuala Lumper, Malaysia, and He hold Master. degree in Information system
from The National University of Malaysia (Malay: Universiti Kebangsaan Malaysia,
abbreviated as UKM). He is a Ph.D. student on information system with UTP Universiti
Teknologi PETRONAS. He has authored or coauthored more than 9 refereed journal and
conference papers, with Sustainability, Journal of Theoretical & Applied Information
Technology, Solid State Technology and International Congress of Advanced Technology
and Engineering, IEEE and Springer. My research interests include the applications of big
data, healthcare evolutionary and heuristic optimization techniques to power system
planning, operation, control. He can be contacted at email: ebrahim_1800342@utp.edu.my.