Application of dc micro grids for integration of solar home systems in smart ...Brhamesh Alipuria
The paper discusses the application of DC micro grids and how they can be used to form smart grids which can easily incorporte solar systems. Such grids have various advantages over the existing grid infrastructure, which has been discussed at length.
If you have any questions, please write to me.
AN INVESTIGATION OF THE ENERGY CONSUMPTION BY INFORMATION TECHNOLOGY EQUIPMENTSijcsit
The World Wide Web and the rise of servers and PC's data centers have become a major position in the
overall power consumption of the world. In order to prevent global warming and ensuing disasters, already
Internet-service providers, hosting providers on green power have changed. Even household energy
suppliers offer green electricity from renewable energy such as wind, solar, biomass and hydro, which
emits no carbon dioxide, to stand against global warming. Only a global change for the information
technology can prevent the global-warming. The switch to renewable energy is the beginning of our future
and must be pursued as well as the research and development in information and communication
technology.
PVPF tool: an automated web application for real-time photovoltaic power fore...IJECEIAES
In this paper, we propose a fully automated machine learning based forecasting system, called Photovoltaic Power Forecasting (PVPF) tool, that applies optimised neural networks algorithms to real-time weather data to provide 24 hours ahead forecasts for the power production of solar photovoltaic systems installed within the same region. This system imports the real-time temperature and global solar irradiance records from the ASU weather station and associates these records with the available solar PV production measurements to provide the proper inputs for the pre-trained machine learning system along with the records’ time with respect to the current year. The machine learning system was pre-trained and optimised based on the Bayesian Regularization (BR) algorithm, as described in our previous research, and used to predict the solar power PV production for the next 24 hours using weather data of the last five consecutive days. Hourly predictions are provided as a power/time curve and published in real-time at the website of the renewable energy center (REC) of Applied Science Private University (ASU). It is believed that the forecasts provided by the PVPF tool can be helpful for energy management and control systems and will be used widely for the future research activities at REC.
Application of dc micro grids for integration of solar home systems in smart ...Brhamesh Alipuria
The paper discusses the application of DC micro grids and how they can be used to form smart grids which can easily incorporte solar systems. Such grids have various advantages over the existing grid infrastructure, which has been discussed at length.
If you have any questions, please write to me.
AN INVESTIGATION OF THE ENERGY CONSUMPTION BY INFORMATION TECHNOLOGY EQUIPMENTSijcsit
The World Wide Web and the rise of servers and PC's data centers have become a major position in the
overall power consumption of the world. In order to prevent global warming and ensuing disasters, already
Internet-service providers, hosting providers on green power have changed. Even household energy
suppliers offer green electricity from renewable energy such as wind, solar, biomass and hydro, which
emits no carbon dioxide, to stand against global warming. Only a global change for the information
technology can prevent the global-warming. The switch to renewable energy is the beginning of our future
and must be pursued as well as the research and development in information and communication
technology.
PVPF tool: an automated web application for real-time photovoltaic power fore...IJECEIAES
In this paper, we propose a fully automated machine learning based forecasting system, called Photovoltaic Power Forecasting (PVPF) tool, that applies optimised neural networks algorithms to real-time weather data to provide 24 hours ahead forecasts for the power production of solar photovoltaic systems installed within the same region. This system imports the real-time temperature and global solar irradiance records from the ASU weather station and associates these records with the available solar PV production measurements to provide the proper inputs for the pre-trained machine learning system along with the records’ time with respect to the current year. The machine learning system was pre-trained and optimised based on the Bayesian Regularization (BR) algorithm, as described in our previous research, and used to predict the solar power PV production for the next 24 hours using weather data of the last five consecutive days. Hourly predictions are provided as a power/time curve and published in real-time at the website of the renewable energy center (REC) of Applied Science Private University (ASU). It is believed that the forecasts provided by the PVPF tool can be helpful for energy management and control systems and will be used widely for the future research activities at REC.
Optimal Siting of Distributed Generators in a Distribution Network using Arti...IJECEIAES
Distributed generation (DG) sources are being installed in distribution networks worldwide due to their numerous advantages over the conventional sources which include operational and economical benefits. Random placement of DG sources in a distribution network will result in adverse effects such as increased power loss, loss of voltage stability and reliability, increase in operational costs, power quality issues etc. This paper presents a methodology to obtain the optimal location for the placement of multiple DG sources in a distribution network from a technical perspective. Optimal location is obtained by evaluating a global multi-objective technical index (MOTI) using a weighted sum method. Clonal selection based artificial immune system (AIS) is used along with optimal power flow (OPF) technique to obtain the solution. The proposed method is executed on a standard IEEE-33 bus radial distribution system. The results justify the choice of AIS and the use of MOTI in optimal siting of DG sources which improves the distribution system efficiency to a great extent in terms of reduced real and reactive power losses, improved voltage profile and voltage stability. Solutions obtained using AIS are compared with Genetic algorithm (GA) and Particle Swarm optimization (PSO) solutions for the same objective function.
Powering mobile network with green energyAbu Yohannan
Explosive mobile data demands are driving a
significant growth in energy consumption in
mobile networks, and consequently a surge of
carbon footprints. Reducing carbon footprints is
crucial in alleviating the direct impact of greenhouse
gases on the earth environment and the
climate change. With advances of green energy
technologies, future mobile networks are expected
to be powered by green energy to reduce
their carbon footprints. This article provides an
overview on the design and optimization of
green energy enabled mobile networks, discusses
the energy models for the analysis and optimization
of the networks, and lays out basic design
principles and research challenges on optimizing
the green energy powered mobile networks.
Sustainable Architecture For Power GenerationPrabhat Kaushik
The scenario of Power is getting worst day by day . Thus we need some factors of improvisation and changes to made in our existing technologies for sustainability. This presentation focuses on the sectors of current power generation along with the new sources and effective technologies to be implemented.
ENERGY HARVESTING FROM REVOLVING DOORSvivatechijri
As today’s world is completely dependent on different types of energies and these energies are going to disappear or exhaust one or the other day so we need to use free energy to run our basic appliances which require electricity for its working. So there is a dire need to find new sources of energy. Most people do not realize that there is a lot of energy that is formed around them all the time. The purpose of this project is to show that the ambient energy in the surroundings can be utilized to generate electricity. In this project, the energy used to open a revolving door is being converted into electrical energy with the help of gears and generator. Further, this electrical energy can be regulated according to the load requirement. Accordingly, a revolving door prototype is designed, fabricated and tested. This prototype can be further optimized in terms of size to generate more electrical energy.
Impact of Electric Vehicle Integration on Gridvivatechijri
Load flow analysis is most essential and important approach to investigate problems in power system. It can provide balance steady state operation of power system without considering transients in it. This project presents a new and efficient method for solving the Load flow problem of a distribution network. By using Backward/Forward sweep method parameters like voltage profile, total power losses, load on each bus of the Distribution Network will be known. By using Load Flow load balancing of the Distribution system can be achieved. For load balancing we will use the power stored in the Electric vehicle. As Electric vehicle has large battery pack for storage. The impact of Electric Vehicle and load flow of distribution network is computer programed to implement the power flow solution scheme in MATLAB software.
SE4SG 2013 : MODAM: A MODular Agent-Based Modelling Framework Jenny Liu
SE4SG 2013 Presentation by Fanny Boulaire at 2nd International Workshop on Software Engineering Challenges for the Smart Grid.
Please cite our workshop at
Ian Gorton, Yan Liu, Heiko Koziolek, Anne Koziolek, and Mazeiar Salehie. 2013. 2nd international workshop on software engineering challenges for the smart grid (SE4SG 2013). In Proceedings of the 2013 International Conference on Software Engineering (ICSE '13). IEEE Press, Piscataway, NJ, USA, 1553-1554.
RuleML2015: Rule-based data transformations in electricity smart gridsRuleML
The systems that will control future electricity networks (also referred
to as Smart Grids) will be based on heterogeneous data models. Expressing transformation
rules between different Smart Grid data models in well-known rule
languages – such as Semantic Web Rule Language (SWRL) and Jena Rule Language
(JRL) – will improve interoperability in this domain. Rules expressed in
these languages can be easily reused in different applications, since they can be
processed by freely available Semantic Web reasoners. In this way, it is possible
to integrate heterogeneous Smart Grid systems without using costly ad-hoc
converters. This paper presents a solution that leverages SWRL and JRL transformation
rules to resolve existing mismatches between two of the most widely
accepted standard data models in the Smart Grids.
An outline of Cape Light Compact's plan to convert 700 residents from oil, propane, and electric resistance heat to cold climate heat pumps powered by Solar Photovoltaic and Battery Storage.
This paper analyzes influences of renewable fraction on grid-connected photovoltaic (PV) for office building energy systems. The fraction of renewable energy has important contributions on sizing the grid-connected PV systems and selling and buying electricity, and hence reducing net present cost (NPC) and carbon dioxide (CO2) emission. An optimum result with the lowest total NPC for serving an office building is achieved by employing the renewable fraction of 58%, in which 58% of electricity is supplied from the PV and the remaining 42% of electricity is purchased from the grid. The results have shown that the optimum grid-connected PV system with an appropriate renewable fraction value could greatly reduce the total NPC and CO2 emission.
Technical and Economic Performance of 1MW Grid-connected PV system in Saudi A...IJERA Editor
In this paper, a feasibility study has been done utilizing real time solar irradiance data for a 1MW grid-connected PV system in Qassim region in the middle of Saudi Arabia. The analysis has been done using both technical and economic indicators. Technical performance indicators are; Yield Factor, Capacity Factor and Performance Ratio. Economic indicators are; Levelized cost of energy and simple payback time. The simulation results show high energy productivity, and both technical and economic indicators are high compared with similar systems in different countries. Also, the greenhouse gas emission reduction has been estimated. The prices of PV modules and balance of system components are up to date. The analysis results proved the viability of the proposed system supposing there is no any governmental incentives or grants which could make big difference.
Flow-induced energy harvesting: conceptual design and numerical analyses of ...StroNGER2012
This study focuses on the conceptual design and the numerical analysis of an Energy Harvesting (EH) device, based on piezoelectric materials, for the sustainability of smart buildings. Before that, a comprehensive literature review on the topic takes place. The device consists in an aerodynamic fin attached to a piezoelectric element that makes use of the airflow to harvest energy. The principal utilization of this device is for energy autonomous sensors, with applications in smart buildings. A performance-based parametric analysis is conducted (in ANSYS®) in order to assess the optimal values of some design and operating condition parameters, including length, width, thickness, constitutive material of the bender and velocity and turbulence intensity of the incoming airflow. The response parameters used for evaluating the performances include the bender maximum tip displacement, the bender vibration frequency, and the rms of the voltage generated by the device. Considerations are made on possible applications in other sectors (structures and transportations infrastructures).
FEASIBILITY ANALYSIS OF GRID/WIND/PV HYBRID SYSTEMS FOR INDUSTRIAL APPLICATIONWayan Santika
The present study offers technical and economical analyses of grid-connected hybrid power systems for a large scale production industry located in Bali. The peak load of observed system can reach 970.630 kW consuming on average 16 MWh of electricity a day. Software HOMER was utilized as the optimization tool. The proposed hybrid renewable energy systems consist of wind turbines, a PV system, a converter, and batteries. The system is connected to the grid. Optimization results show that the best configuration is the Grid/Wind hybrid system with the predicted net present cost of
-884,896 USD. The negative sign indicates that revenues (mostly from selling power to the grid) exceed costs. The levelized cost of electricity of the system is predicted to be -0.013 USD/kWh. The present study also conducts sensitivity analysis of some scenarios i.e. 50% and 100% increases in grid electricity prices, 50% reduction of PV and WECS prices, and 10 USD and 50 USD carbon taxes per ton CO2 emission. Implications of the findings are discussed.
Energy storage system to reduce peak demand of domestic consumersKevin Koshy Varghese
Demand side load management system prototype to mitigate the effects of large energy load blocks during a period of time by advancing or delaying their effects until the power supply can readily accept the additional load. Blynk IoT platform was used for data storage and designing of companion android application for data monitoring and system controls.
Optimal Siting of Distributed Generators in a Distribution Network using Arti...IJECEIAES
Distributed generation (DG) sources are being installed in distribution networks worldwide due to their numerous advantages over the conventional sources which include operational and economical benefits. Random placement of DG sources in a distribution network will result in adverse effects such as increased power loss, loss of voltage stability and reliability, increase in operational costs, power quality issues etc. This paper presents a methodology to obtain the optimal location for the placement of multiple DG sources in a distribution network from a technical perspective. Optimal location is obtained by evaluating a global multi-objective technical index (MOTI) using a weighted sum method. Clonal selection based artificial immune system (AIS) is used along with optimal power flow (OPF) technique to obtain the solution. The proposed method is executed on a standard IEEE-33 bus radial distribution system. The results justify the choice of AIS and the use of MOTI in optimal siting of DG sources which improves the distribution system efficiency to a great extent in terms of reduced real and reactive power losses, improved voltage profile and voltage stability. Solutions obtained using AIS are compared with Genetic algorithm (GA) and Particle Swarm optimization (PSO) solutions for the same objective function.
Powering mobile network with green energyAbu Yohannan
Explosive mobile data demands are driving a
significant growth in energy consumption in
mobile networks, and consequently a surge of
carbon footprints. Reducing carbon footprints is
crucial in alleviating the direct impact of greenhouse
gases on the earth environment and the
climate change. With advances of green energy
technologies, future mobile networks are expected
to be powered by green energy to reduce
their carbon footprints. This article provides an
overview on the design and optimization of
green energy enabled mobile networks, discusses
the energy models for the analysis and optimization
of the networks, and lays out basic design
principles and research challenges on optimizing
the green energy powered mobile networks.
Sustainable Architecture For Power GenerationPrabhat Kaushik
The scenario of Power is getting worst day by day . Thus we need some factors of improvisation and changes to made in our existing technologies for sustainability. This presentation focuses on the sectors of current power generation along with the new sources and effective technologies to be implemented.
ENERGY HARVESTING FROM REVOLVING DOORSvivatechijri
As today’s world is completely dependent on different types of energies and these energies are going to disappear or exhaust one or the other day so we need to use free energy to run our basic appliances which require electricity for its working. So there is a dire need to find new sources of energy. Most people do not realize that there is a lot of energy that is formed around them all the time. The purpose of this project is to show that the ambient energy in the surroundings can be utilized to generate electricity. In this project, the energy used to open a revolving door is being converted into electrical energy with the help of gears and generator. Further, this electrical energy can be regulated according to the load requirement. Accordingly, a revolving door prototype is designed, fabricated and tested. This prototype can be further optimized in terms of size to generate more electrical energy.
Impact of Electric Vehicle Integration on Gridvivatechijri
Load flow analysis is most essential and important approach to investigate problems in power system. It can provide balance steady state operation of power system without considering transients in it. This project presents a new and efficient method for solving the Load flow problem of a distribution network. By using Backward/Forward sweep method parameters like voltage profile, total power losses, load on each bus of the Distribution Network will be known. By using Load Flow load balancing of the Distribution system can be achieved. For load balancing we will use the power stored in the Electric vehicle. As Electric vehicle has large battery pack for storage. The impact of Electric Vehicle and load flow of distribution network is computer programed to implement the power flow solution scheme in MATLAB software.
SE4SG 2013 : MODAM: A MODular Agent-Based Modelling Framework Jenny Liu
SE4SG 2013 Presentation by Fanny Boulaire at 2nd International Workshop on Software Engineering Challenges for the Smart Grid.
Please cite our workshop at
Ian Gorton, Yan Liu, Heiko Koziolek, Anne Koziolek, and Mazeiar Salehie. 2013. 2nd international workshop on software engineering challenges for the smart grid (SE4SG 2013). In Proceedings of the 2013 International Conference on Software Engineering (ICSE '13). IEEE Press, Piscataway, NJ, USA, 1553-1554.
RuleML2015: Rule-based data transformations in electricity smart gridsRuleML
The systems that will control future electricity networks (also referred
to as Smart Grids) will be based on heterogeneous data models. Expressing transformation
rules between different Smart Grid data models in well-known rule
languages – such as Semantic Web Rule Language (SWRL) and Jena Rule Language
(JRL) – will improve interoperability in this domain. Rules expressed in
these languages can be easily reused in different applications, since they can be
processed by freely available Semantic Web reasoners. In this way, it is possible
to integrate heterogeneous Smart Grid systems without using costly ad-hoc
converters. This paper presents a solution that leverages SWRL and JRL transformation
rules to resolve existing mismatches between two of the most widely
accepted standard data models in the Smart Grids.
An outline of Cape Light Compact's plan to convert 700 residents from oil, propane, and electric resistance heat to cold climate heat pumps powered by Solar Photovoltaic and Battery Storage.
This paper analyzes influences of renewable fraction on grid-connected photovoltaic (PV) for office building energy systems. The fraction of renewable energy has important contributions on sizing the grid-connected PV systems and selling and buying electricity, and hence reducing net present cost (NPC) and carbon dioxide (CO2) emission. An optimum result with the lowest total NPC for serving an office building is achieved by employing the renewable fraction of 58%, in which 58% of electricity is supplied from the PV and the remaining 42% of electricity is purchased from the grid. The results have shown that the optimum grid-connected PV system with an appropriate renewable fraction value could greatly reduce the total NPC and CO2 emission.
Technical and Economic Performance of 1MW Grid-connected PV system in Saudi A...IJERA Editor
In this paper, a feasibility study has been done utilizing real time solar irradiance data for a 1MW grid-connected PV system in Qassim region in the middle of Saudi Arabia. The analysis has been done using both technical and economic indicators. Technical performance indicators are; Yield Factor, Capacity Factor and Performance Ratio. Economic indicators are; Levelized cost of energy and simple payback time. The simulation results show high energy productivity, and both technical and economic indicators are high compared with similar systems in different countries. Also, the greenhouse gas emission reduction has been estimated. The prices of PV modules and balance of system components are up to date. The analysis results proved the viability of the proposed system supposing there is no any governmental incentives or grants which could make big difference.
Flow-induced energy harvesting: conceptual design and numerical analyses of ...StroNGER2012
This study focuses on the conceptual design and the numerical analysis of an Energy Harvesting (EH) device, based on piezoelectric materials, for the sustainability of smart buildings. Before that, a comprehensive literature review on the topic takes place. The device consists in an aerodynamic fin attached to a piezoelectric element that makes use of the airflow to harvest energy. The principal utilization of this device is for energy autonomous sensors, with applications in smart buildings. A performance-based parametric analysis is conducted (in ANSYS®) in order to assess the optimal values of some design and operating condition parameters, including length, width, thickness, constitutive material of the bender and velocity and turbulence intensity of the incoming airflow. The response parameters used for evaluating the performances include the bender maximum tip displacement, the bender vibration frequency, and the rms of the voltage generated by the device. Considerations are made on possible applications in other sectors (structures and transportations infrastructures).
FEASIBILITY ANALYSIS OF GRID/WIND/PV HYBRID SYSTEMS FOR INDUSTRIAL APPLICATIONWayan Santika
The present study offers technical and economical analyses of grid-connected hybrid power systems for a large scale production industry located in Bali. The peak load of observed system can reach 970.630 kW consuming on average 16 MWh of electricity a day. Software HOMER was utilized as the optimization tool. The proposed hybrid renewable energy systems consist of wind turbines, a PV system, a converter, and batteries. The system is connected to the grid. Optimization results show that the best configuration is the Grid/Wind hybrid system with the predicted net present cost of
-884,896 USD. The negative sign indicates that revenues (mostly from selling power to the grid) exceed costs. The levelized cost of electricity of the system is predicted to be -0.013 USD/kWh. The present study also conducts sensitivity analysis of some scenarios i.e. 50% and 100% increases in grid electricity prices, 50% reduction of PV and WECS prices, and 10 USD and 50 USD carbon taxes per ton CO2 emission. Implications of the findings are discussed.
Energy storage system to reduce peak demand of domestic consumersKevin Koshy Varghese
Demand side load management system prototype to mitigate the effects of large energy load blocks during a period of time by advancing or delaying their effects until the power supply can readily accept the additional load. Blynk IoT platform was used for data storage and designing of companion android application for data monitoring and system controls.
Presentation from the EPRI-Sandia Symposium on Secure and Resilient Microgrids: Power Systems Engineering Research and Development, presented by Dan Ton, DOE OE, Baltimore, MD, August 29-31, 2016.
since our electrical system consists of many interconnections .in order to have a proper transmission we need grid if we incorporate some sensors it results in smart grid .today grid system consists of all interconnection tapping points
A NOVEL CONTROL STRATEGY FOR POWER QUALITY IMPROVEMENT USING ANN TECHNIQUE FO...IJERD Editor
The proposed system presents power-control strategies of a Micro grid-connected hybrid generation
system with versatile power transfer. This hybrid system allows maximum utilization of freely available
renewable energy sources like wind and photovoltaic energies. For this, an adaptive MPPT algorithm along with
standard perturbs and observes method will be used for the system.
The inverter converts the DC output from non-conventional energy into useful AC power for the
connected load. This hybrid system operates under normal conditions which include normal room temperature
in the case of solar energy and normal wind speed at plain area in the case of wind energy. However, designing
an optimal micro grid is not an easy task, due to the fact that primary energy carriers are changeable and
uncontrollable, as is the demand. Traditional design and optimization tools, developed for controlled power
sources, cannot be employed here. Simulation methods seem to be the best solution.
The dynamic model of the proposed system is first elaborated in the stationary reference frame and
then transformed into the synchronous orthogonal reference frame. The transformed variables are used in
control of the voltage source converter as the heart of the interfacing system between DG resources and utility
grid. By setting an appropriate compensation current references from the sensed load currents in control circuit
loop of DG, the active, reactive, and harmonic load current components will be compensated with fast dynamic
response, thereby achieving sinusoidal grid currents in phase with load voltages, while required power of the
load is more than the maximum injected power of the DG to the grid. In addition, the proposed control method
of this paper does not need a phase-locked loop in control circuit and has fast dynamic response in providing
active and reactive power components of the grid-connected loads.
The merits of integrating renewables with smarter grid carimetRick Case, PMP, P.E.
A critical look at the response a grid will need with increasing penetration levels of Variable Renewable Resouces (VRRs) on a grid and the SMART solutions required to maintain grid stability.
Implementation of modular MPPT algorithm for energy harvesting embedded and I...IJECEIAES
The establishment of the latest IoT systems available today such as smart cities, smart buildings, and smart homes and wireless sensor networks (WSNs) are let the main design restriction on the inadequate supply of battery power. Hence proposing a solar-based photovoltaic (PV) system which is designed DC-DC buck-boost converter with an improved modular maximum power point tracking (MPPT) algorithm. The output voltage depends on the inductor, capacitor values, metal oxide semiconductor field effect transistor (MOSFET) switching frequency, and duty cycle. This paper focuses on the design and simulation of min ripple current/voltage and improved efficiency at PV array output, to store DC power. The stored DC power will be used for smart IoT systems. From the simulation results, the current ripples are observed to be minimized from 0.062 A to 0.02 A maintaining the duty cycle at 61.09 for switching frequencies ranges from 300 kHz to 10 MHz at the input voltage 48 V and the output voltage in buck mode 24 V, boost mode 100 V by maintaining constant 99.7 efficiencies. The improvised approach is compared to various existed techniques. It is noticed that the results are more useful for the self-powered Embedded & Internet of Things systems.
Similar to Scrutinizing electricity sector results from PRIMES Energy System model using soft-linking methodology (20)
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16–17th november 2023, dr daniele lerede, etsap meeting, etsap winter workshop, italy, mathep group, november 2023, politecnico di torino, semi-annual meeting, turin
Opendatabay - Open Data Marketplace.pptxOpendatabay
Opendatabay.com unlocks the power of data for everyone. Open Data Marketplace fosters a collaborative hub for data enthusiasts to explore, share, and contribute to a vast collection of datasets.
First ever open hub for data enthusiasts to collaborate and innovate. A platform to explore, share, and contribute to a vast collection of datasets. Through robust quality control and innovative technologies like blockchain verification, opendatabay ensures the authenticity and reliability of datasets, empowering users to make data-driven decisions with confidence. Leverage cutting-edge AI technologies to enhance the data exploration, analysis, and discovery experience.
From intelligent search and recommendations to automated data productisation and quotation, Opendatabay AI-driven features streamline the data workflow. Finding the data you need shouldn't be a complex. Opendatabay simplifies the data acquisition process with an intuitive interface and robust search tools. Effortlessly explore, discover, and access the data you need, allowing you to focus on extracting valuable insights. Opendatabay breaks new ground with a dedicated, AI-generated, synthetic datasets.
Leverage these privacy-preserving datasets for training and testing AI models without compromising sensitive information. Opendatabay prioritizes transparency by providing detailed metadata, provenance information, and usage guidelines for each dataset, ensuring users have a comprehensive understanding of the data they're working with. By leveraging a powerful combination of distributed ledger technology and rigorous third-party audits Opendatabay ensures the authenticity and reliability of every dataset. Security is at the core of Opendatabay. Marketplace implements stringent security measures, including encryption, access controls, and regular vulnerability assessments, to safeguard your data and protect your privacy.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Chatty Kathy - UNC Bootcamp Final Project Presentation - Final Version - 5.23...John Andrews
SlideShare Description for "Chatty Kathy - UNC Bootcamp Final Project Presentation"
Title: Chatty Kathy: Enhancing Physical Activity Among Older Adults
Description:
Discover how Chatty Kathy, an innovative project developed at the UNC Bootcamp, aims to tackle the challenge of low physical activity among older adults. Our AI-driven solution uses peer interaction to boost and sustain exercise levels, significantly improving health outcomes. This presentation covers our problem statement, the rationale behind Chatty Kathy, synthetic data and persona creation, model performance metrics, a visual demonstration of the project, and potential future developments. Join us for an insightful Q&A session to explore the potential of this groundbreaking project.
Project Team: Jay Requarth, Jana Avery, John Andrews, Dr. Dick Davis II, Nee Buntoum, Nam Yeongjin & Mat Nicholas
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
Explore our comprehensive data analysis project presentation on predicting product ad campaign performance. Learn how data-driven insights can optimize your marketing strategies and enhance campaign effectiveness. Perfect for professionals and students looking to understand the power of data analysis in advertising. for more details visit: https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/
Machine learning and optimization techniques for electrical drives.pptx
Scrutinizing electricity sector results from PRIMES Energy System model using soft-linking methodology
1. Scrutinizing electricity sector results from PRIMES Energy
System model using soft-linking
methodology
Seán Collins, Paul Deane and Brian Ó Gallachóir
UN City Copenhagen | IEA-ETSAP Meeting 2014
18th Sept ‘14
3. Objectives
• To test the technical appropriateness and robustness of PRIMES
Reference Scenario results for the electricity sector.
• Identify concerns which accompany them, including :
Generation Adequacy and reliability of the power system
Renewable curtailment
Flexibility of the power system to absorb variable renewables
Congestion on interconnector lines
4. Methodology
• A soft-linking methodology was employed to scrutinize specific
results from the electricity sector for a target year.
+ Deane, J.P., Chiodi, A., Gargiulo, M., Ó Gallachóir, B.P., 2012. Soft-linking of a power systems model to an
energy systems model. Energy 42, 303–312. doi:10.1016/j.energy.2012.03.052
• Done using a dedicated power system model (PLEXOS).
• Model simulates the operation of the EU power system at high
temporal and technical resolution for a target year.
5. The Software we use for electricity/gas:
PLEXOS
Main slide text
• Academic License
• Transparent and auditable
• Strong commercial user base
• Strong R&D focus from development team
• Production Cost Simulation
• Electric and Gas modelling
• Capacity Expansion Capability
• Market Analysis and Market Design
• Transmission Analysis
• Stochastic Optimisation
• Hydro Generation Resource Management
6. Multi-Model Approach - EU
PLEXOS Integrated Gas and Electricity model soft-links to PRIMES Energy system
model or TIMES Integrated Energy System Model
Power System Model Provides:
-Detailed analysis of energy system model results using
soft-linking techniques+
-High temporal resolution (15min-1 hr)
-High technical detail, reserve modelling, hydro
modelling, multi-stage stochastic UC
-Ramping costs, flexibility metrics
EU 28 Model- 3,000 generators, 22 PHES Units, 53 IC
Lines
+ Deane, J.P., Chiodi, A., Gargiulo, M., Ó Gallachóir, B.P., 2012. Soft-linking of
a power systems model to an energy systems model. Energy 42, 303–312.
doi:10.1016/j.energy.2012.03.052
8. Data Utilised
PRIMES Results
• The PRIMES model is a modelling system that simulates a market equilibrium solution for energy
supply and demand. The model is organized in sub-models (modules), each one representing the
behaviour of a specific (or representative) agent, a demander and/or a supplier of energy.
• These include predicted installed generation capacities, Gross & Net Electrical Generation by plant
type and indicators for electricity generation among other results
9. Data Utilised
Wind Generation Data (Hourly)
• Based on NASA MERRA Data
• Developed Wind Profiles in countries in line with capacity factors outlined in PRIMES
• Wind profiles based on local condition in all countries
• Created Normalised generation profiles in line with PRIMES generation capacities
• Based on multi turbine generation curve
Solar Generation Data (Hourly)
• Calculated using PV Watts online package developed by NREL
• Solar profiles based on local solar irradiation data for all countries
• Normalised Profiles created for PLEXOS model
10. Data Utilised
Electrical Demand Data (Hourly)
• Sourced for individual countries from ENTSO-E
Levels of interconnection
• The level of interconnection between member states are considered.
• Present Day figures interconnection data sourced from ENTSO-E
• 2030 Interconnection levels determined from ENTSO-E Ten Year Network
Development Program
11. Structure of Model in Excel
Automatically adjusts to changes in PRIMES 2030 Capacity
& Generation figures
Reference data sheet for power plant data (heat rate, start
up cost maintenance rate, fuel price etc.) common for all
EU-28
Workbooks can be easily created/edited and linked to
external data sources
Transparent method for large model building for Non-
PLEXOS users
12. Results - Loss of Load Probability
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
LOLP
17. Conclusions
• Soft Linking methodology provides a firm test of the
appropriateness of PRIMES 2030 Results
• Preliminary results from this model indicate:
– Potential overestimation of flexibility of wind generation in PRIMES
Ref Scenario
– The need for increased interconnection between member states
Future work:
– Incorporate CHP in model, Include Switzerland and Norway in model
and improve renewable energy profiles