Due to urbanization, globalization and industrialization the demand for energy is rapidly increasing allows the world and India is not an exception. Out of all energies electrical energy is playing a major role in developed as well as developing countries. The energy is mostly produced by fossil fuels which are developing day his is to by day .they also produce lot of pollutants which totally damage the environment the alternative to this is to encourage renewable energy source. Now days the energy production at domestic level is becoming popular with the help of solar and wind energies . These technologies are widely used now days in the present paper an attempt has been made to simulate a generalized hybrid model including solar and wind.
Simulink Model for Cost-effective Analysis of Hybrid SystemIJMER
This document summarizes a research paper that models and simulates hybrid power systems using MATLAB Simulink. The key points are:
1) The model simulates three cases - a diesel-only system, diesel with battery system, and a PV-diesel-battery hybrid system - to analyze cost effectiveness over one year.
2) Parameters like fuel consumption, energy per gallon, and total fuel costs are calculated and used to determine the energy payback period and simple payback time.
3) Simulation results are compared to predictions from HOMER software, finding differences in efficiencies and operational characteristics between the two models.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Simulation of MPPT Algorithm Based Hybrid Wind-Solar-Fuel Cell Energy SystemIJMER
This paper presents a new system configuration of the front-end rectifier stage for a hybrid
wind/photovoltaic energy system. This configuration allows the two sources to supply the load
separately or simultaneously depending on the availability of the energy sources. The inherent nature of
this Cuk-SEPIC fused converter, additional input filters are not necessary to filter out high frequency
harmonics. Harmonic content is detrimental for the generator lifespan, heating issues, and efficiency.
The fused multiinput rectifier stage also allows Maximum Power Point Tracking (MPPT) to be used to
extract maximum power from the wind and sun when it is available. An adaptive MPPT algorithm will
be used for the wind system and a standard perturb and observe method will be used for the PV system.
Operational analysis of the proposed system will be discussed in this paper. Simulation results are given
to highlight the merits of the proposed circuit.
4.power quality improvement in dg system using shunt active filterEditorJST
Injection of power generated by the wind turbine system into an electric grid mainly effects the power quality. The performance of this wind turbine and its power quality is determined on the basis of its measurement of power ratings as per IEEE standards. The influence of the wind turbine in the grid system concerning the power quality measurements are the active power, reactive power, variation of voltage, flicker, harmonics, and electrical behavior of switching operation. To mitigate the power quality problems this paper proposes the shunt compensator techniques. Here, the proposed system is verified experimentally using both STATCOM and TSC compensators. This control schemes for grid connected wind energy system is simulated using Matlab/Simulink.
International Journal of Engineering Research and DevelopmentIJERD Editor
This document presents a dynamic model and control strategy for a grid-connected hybrid wind and photovoltaic (PV) power generation system. It describes models for the key system components, including a variable speed wind turbine with permanent magnet synchronous generator (PMSG), PV array, and power conditioning system. The power conditioning system uses boost converters to regulate the DC link voltage from the wind and PV sources. A voltage source inverter and PQ controller are used to interface the hybrid system and deliver power to the grid while maintaining a stable common DC bus voltage. Simulation results show the feasibility of the proposed hybrid power system for distributed energy applications.
This document summarizes a study on controlling DC/DC converters for maximum power tracking in solar energy systems. The study analyzed buck, boost, and buck-boost converter performance using a discrete-time proportional-integral control algorithm to track the maximum power points of a solar array. Simulation and experimental results showed the converters successfully tracked maximum power points under changing solar irradiance. The buck converter achieved the highest efficiency of around 90%. The control method and converter configurations allow solar energy systems to effectively transfer power from solar arrays.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Simulink Model for Cost-effective Analysis of Hybrid SystemIJMER
This document summarizes a research paper that models and simulates hybrid power systems using MATLAB Simulink. The key points are:
1) The model simulates three cases - a diesel-only system, diesel with battery system, and a PV-diesel-battery hybrid system - to analyze cost effectiveness over one year.
2) Parameters like fuel consumption, energy per gallon, and total fuel costs are calculated and used to determine the energy payback period and simple payback time.
3) Simulation results are compared to predictions from HOMER software, finding differences in efficiencies and operational characteristics between the two models.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Simulation of MPPT Algorithm Based Hybrid Wind-Solar-Fuel Cell Energy SystemIJMER
This paper presents a new system configuration of the front-end rectifier stage for a hybrid
wind/photovoltaic energy system. This configuration allows the two sources to supply the load
separately or simultaneously depending on the availability of the energy sources. The inherent nature of
this Cuk-SEPIC fused converter, additional input filters are not necessary to filter out high frequency
harmonics. Harmonic content is detrimental for the generator lifespan, heating issues, and efficiency.
The fused multiinput rectifier stage also allows Maximum Power Point Tracking (MPPT) to be used to
extract maximum power from the wind and sun when it is available. An adaptive MPPT algorithm will
be used for the wind system and a standard perturb and observe method will be used for the PV system.
Operational analysis of the proposed system will be discussed in this paper. Simulation results are given
to highlight the merits of the proposed circuit.
4.power quality improvement in dg system using shunt active filterEditorJST
Injection of power generated by the wind turbine system into an electric grid mainly effects the power quality. The performance of this wind turbine and its power quality is determined on the basis of its measurement of power ratings as per IEEE standards. The influence of the wind turbine in the grid system concerning the power quality measurements are the active power, reactive power, variation of voltage, flicker, harmonics, and electrical behavior of switching operation. To mitigate the power quality problems this paper proposes the shunt compensator techniques. Here, the proposed system is verified experimentally using both STATCOM and TSC compensators. This control schemes for grid connected wind energy system is simulated using Matlab/Simulink.
International Journal of Engineering Research and DevelopmentIJERD Editor
This document presents a dynamic model and control strategy for a grid-connected hybrid wind and photovoltaic (PV) power generation system. It describes models for the key system components, including a variable speed wind turbine with permanent magnet synchronous generator (PMSG), PV array, and power conditioning system. The power conditioning system uses boost converters to regulate the DC link voltage from the wind and PV sources. A voltage source inverter and PQ controller are used to interface the hybrid system and deliver power to the grid while maintaining a stable common DC bus voltage. Simulation results show the feasibility of the proposed hybrid power system for distributed energy applications.
This document summarizes a study on controlling DC/DC converters for maximum power tracking in solar energy systems. The study analyzed buck, boost, and buck-boost converter performance using a discrete-time proportional-integral control algorithm to track the maximum power points of a solar array. Simulation and experimental results showed the converters successfully tracked maximum power points under changing solar irradiance. The buck converter achieved the highest efficiency of around 90%. The control method and converter configurations allow solar energy systems to effectively transfer power from solar arrays.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
1) The document presents Solar-Tune, a real-time scheduling technique for sporadic tasks on solar energy powered multicore embedded systems. The goal is to fully utilize available solar energy while meeting task deadlines.
2) It uses an integer linear programming algorithm to dynamically refine task scheduling based on solar energy availability predictions. Combined with a utilization-based partitioning method, it achieves lower energy dissipation than existing algorithms.
3) Experimental results show Solar-Tune has a lower task deadline miss rate and better efficiency on multicore systems compared to other algorithms. It achieves over 5% higher solar energy utilization than battery-equipped PV systems.
ENERGY MANAGEMENT SYSTEM FOR CRITICAL LOADS USING POWER ELECTRONICSrenukasningadally
The work aims at an Energy Management System (EMS) for Critical loads using Power Electronics. Here hybrid power sources (Grid and Solar cells) with battery have been used to supply the power to the critical loads at all times, suppose an end user increases his critical loads or non-critical loads this EMS system helps to maintain continuous power supply to these loads. Solar or Photovoltaic cells have been used for storing energy through battery and these batteries will discharge the stored energy at two conditions, one is when grid is shut down for short duration or for a long duration and another one is when there sudden increase in load by users
A Simple Control Strategy for Boost Converter Based Wind and Solar Hybrid Ene...IJRES Journal
This paper deals about the improvement of output from hybrid (Wind and PV) system through the maximum power point technique (MPPT). Though various power tracking techniques are available, Constant Voltage method is simple and effective way to track the maximum power. In this method output voltage is compared with the maximum voltage and based on the comparison gate signal is generated to the boost converter switch. Two boost converters are used individually for PV and Wind system. The whole system is modeled by using the Matlab/Simulink Model.
This project proposes a simplified PV module simulator with MPPT. The PV model is designed in Matlab/Simulink based on various mathematical equations. This paper explains the use of MPPT technique in a photovoltaic system. The MPPT is implemented by incremental conductance or perturbation and observation methods. The overall system is designed, developed and validated by using MATLAB/SIMULINK
Modeling and Simulation of Wind Energy Conversion System Interconnected with ...idescitation
This document summarizes a paper that models and simulates a wind energy conversion system connected to a radial distribution system. It presents the modeling of various components of the wind energy system, including the wind turbine, induction generator, rectifier, DC link controller, inverter, and an incremental conductance maximum power point tracking algorithm. The performance of the wind energy conversion system is analyzed when connected to IEEE 15 bus radial distribution system in MATLAB/Simulink. Simulation results show that integrating distributed generation at optimal locations and sizes can reduce power losses, improve voltage profiles, and increase reliability indices of the distribution system.
Tracking of Maximum Power from Wind Using Fuzzy Logic Controller Based On PMSGIJMER
Wind energy has gained a growing worldwide interest due to the nonstop rise in fuel cost.
The main aim of the wind-energy system is to extract the maximum power present in the wind stream. In
order to extract the highest power, the maximum power point tracking (MPPT) algorithm is used. This
paper proposes the fuzzy logic MPPT controller to track the maximum power from the wind generation
system. The maximum power is achieved based on the rotor speed of the wind system which consists of
wind turbine and PMSG. The error and change in error is given as input to the fuzzy logic and its output
is connected to the boost converter. The voltage from the dc link is controlled by the Voltage Source
Inverter (VSI), and it is placed in grid side converter control. The proposed system is designed and
evaluated in MATLAB/SIMULINK. Simulation results show the good dynamic performance of the
proposed system
Design and simulation of stand alone integrated renewable energy system for r...eSAT Journals
The document describes the design and simulation of a stand-alone integrated renewable energy system for remote areas using solar and wind energy resources. Key points:
- The system was designed to provide electricity to off-grid rural households using local renewable resources to avoid the high costs of grid extension.
- Models of the solar photovoltaic system and variable speed wind turbine with permanent magnet synchronous generator were developed in MATLAB/Simulink.
- The solar and wind systems were integrated by connecting them to a common DC bus, allowing both sources to supply the isolated load. Power conversion circuits like boost converters and inverters were included to condition the output.
- Simulation results of the integrated renewable energy system design
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
The document discusses electrochemical energy storage and its importance for alternative energy applications. It outlines some key challenges with energy storage, including the need for devices with high power and energy capabilities, long life, fast charging, and portability. The author proposes using hybrid energy storage systems that integrate multiple device types to optimize performance for different applications and timescales. The remainder of the document focuses on lithium-ion battery limitations and using mechanical models to understand capacity fade through stresses induced during operation.
GA Based Controller for Autonomous Wind-DG Micro gridIOSRJEEE
This document presents a study on developing a genetic algorithm (GA) based controller for an autonomous wind-diesel microgrid system. The microgrid consists of a permanent magnet brushless DC generator-based wind energy conversion system and a diesel generator. A maximum power point tracking technique using incremental conductance is used to optimize wind power extraction. A voltage source converter acts as a voltage and frequency controller. The document proposes using a GA to tune the parameters of a back propagation feedforward control scheme for the voltage source converter in order to address power quality issues in the microgrid system. Simulation results are presented to analyze the microgrid's performance under changing wind speeds and nonlinear loads.
Stand-alone Hybrid systems become appreciating issues that ensure the required electricity to consumers. The development of a stand-alone Hybrid system becomes a necessity for multiple applications The enhance energy security. To achieve this objective, we have proposed an accurate dynamic model using Multi-Agent System (MAS) in which a solar energy System (SES) serves as the main load supply, an energy Backup System (ERS) is based on a fuel cell and Electrolyzer for long-term energy storage and an Ultra Capacitor (UCap) storage system deployed as a short-time storage. To cooperate with all systems, an Intelligent Power Management (IPM) based on a specific MAS is included. Thus, to prove the performance of the system, we tested and simulated it using the Matlab/Simulink environment.
Wind Turbine Generator Tied To Grid Using Inverter Techniques and Its DesignsIJSRD
The document proposes a method for connecting small 300W wind turbine generators directly to the grid using inverter techniques, without the need for batteries. It describes using a permanent magnet generator coupled with a boost converter and three-phase inverter to stabilize voltage and maximize power extraction using MPPT control. Simulation results show that the proposed system is able to maintain grid voltage and power local loads by controlling active and reactive power flow.
Design and Simulation of Electrification By Solar-Wind Hybrid Systemijtsrd
With the rising energy demand and lack of infrastructure because of geographical condition of Pyin Kha Yaing Village, the whole village is still not inter-connected to National Grid System. This village is located in Ngapudaw Township, Ayarwaddy Division. The latitude and longitude of study case is 15.980992 and 94.400207 respectively. Presently, the electrification of Pyin Kha Yaing Village is carried out by steam boiler driven generator with burning of Rice-Husk. With this source, total average consumption is observed as 3.4 MWh D. Instead of steam boiler generator driven, Solar-Wind Hybrid Generation system is employed for this place. A simulation model for wind-solar hybrid system is developed using the Matlab Simulation software. The proposed model is combination of Wind Energy System, Photovoltaic PV array, Converter, Battery storage and inverter. The simulation model of solar-wind hybrid system for selected region is presented. Aye Ei Ei Cho | Su Su Myat Mon "Design and Simulation of Electrification By Solar-Wind Hybrid System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18946.pdf
http://www.ijtsrd.com/engineering/electrical-engineering/18946/design-and-simulation-of-electrification-by-solar-wind-hybrid-system/aye-ei-ei-cho
The document proposes a smart residential photovoltaic (PV) and energy storage system to reduce energy costs. It presents a system model with PV modules, energy storage elements (EES), and electricity pricing policies. The system uses converters to control energy flow between the PV, storage, and home loads. Simulations show the system with lithium-ion batteries achieves 7-8% more daily cost savings than lead-acid batteries. Advantages include reduced reliance on the electric grid and cleaner energy. Disadvantages are higher initial costs and variable solar output. Future scopes are microinverters and cost competitiveness with conventional energy after 2020.
The document summarizes a research paper that proposes using a battery energy storage system (BESS) with droop control to reduce frequency fluctuations in a multi-machine power system connected to a large-scale photovoltaic (PV) plant. The paper develops a droop control strategy for the BESS that incorporates a frequency error signal and dead-band. Simulation results using PSCAD/EMTDC software show that the proposed droop control-based BESS can efficiently curtail frequency oscillations caused by fluctuations in PV power injection due to changing solar irradiance.
Standalone photovoltaic array fed induction motor driven water pumping system IJECEIAES
Due to the absence of energy transmission lines connected to the water pumping sites in remote areas, problems related to the electrical power outages and the environmental degradation caused by fossil fuel. For this one of the most conceived solutions is the photovoltaic water pumping technology which has the advantage of being sustainable and respectful of the environment to supply water to rural areas. To ensure the need of water, especially for domestic use and small communities, in this article, the photovoltaic energy system for autonomous water pumping using the induction motor was presented, particularly adapted to the isolated regions. Pumping system consists of four photovoltaic (PV) panels, boost converter, inverter, induction motor, centrifugal pump and a storage tank. In this study, the output power of a PV solar cell is fully used by proposing the P&O algorithm, where it is used to follow a maximum power point tracking (MPPT) technique. The recommended system is designed, modeled and simulated on the MATLAB / Simulink platform. The efficiency of the proposed algorithm is observed with variable solar sunshine.
Fuzzy Logic Based Controller Effective Energy Management OfComposite Energy S...IOSR Journals
This document summarizes a research paper that proposes a composite energy storage system (CESS) involving batteries and ultracapacitors for use in microgrids powered by renewable energy sources like photovoltaics. The CESS aims to address the intermittent nature of renewable power generation and fluctuating load demand. It uses both high energy density batteries and high power density ultracapacitors. DAB converters are used to interface the batteries and ultracapacitor to the DC bus. A fuzzy logic controller is proposed for effective energy management between the batteries and ultracapacitor to meet varying power needs. Simulation results demonstrate how the controller can dynamically allocate power demands and manage energy distribution between the storage components.
Measurement and Analysis of Power in Hybrid Systemijeei-iaes
Application with renewable energy sources such as solar cell array, wind turbines, or fuel cells have increased significantly during the past decade. To obtain the clean energy, we are using the hybrid solar-wind power generation. Consumers prefer quality power from suppliers. The quality of power can be measured by using parameters such as voltage sag, harmonic and power factor. To obtain quality power we have different topologies. In our paper we present a new possible topology which improves power quality. This paper presents modeling analysis and design of a pulse width modulation voltage source inverter (PWM-VSI) to be connected between sources, which supplies energy from a hybrid solar wind energy system to the ac grid. The objective of this paper is to show that, with an adequate control, the converter not only can transfer the dc from hybrid solar wind energy system, but also can improve the power factor and quality power of electrical system. Whenever a disturbance occurs on load side, this disturbance can be minimized using open loop and closed loop control systems.
Performance Analysis of DC Micro Grid with PV-Fuel Cell Hybrid GenerationIJMREMJournal
Conventional energy resources are being replaced by Renewable energy sources mainly due to increasing
environmental concerns. Photovoltaic (PV) and Fuel cell (FC) are suitable to be used in modern DC microgrids
due to their DC output. In this research work, a DC microgrid structure is proposed for small residential areas
using hybrid PV and FC generation. Power Electronic converters are used to regulate generated voltage of the
two sources for integration to a common DC bus. Proposed system is simulated using MATLAB SIMULINK to
observe its performance. Simulation results show that output voltage is properly maintained at different DC
A Novel Approach for Moving Object Detection from Dynamic BackgroundIJERA Editor
In computer vision application, moving object detection is the key technology for intelligent video monitoring
system. Performance of an automated visual surveillance system considerably depends on its ability to detect
moving objects in thermodynamic environment. A subsequent action, such as tracking, analyzing the motion or
identifying objects, requires an accurate extraction of the foreground objects, making moving object detection a
crucial part of the system. The aim of this paper is to detect real moving objects from un-stationary background
regions (such as branches and leafs of a tree or a flag waving in the wind), limiting false negatives (objects
pixels that are not detected) as much as possible. In addition, it is assumed that the models of the target objects
and their motion are unknown, so as to achieve maximum application independence (i.e. algorithm works under
the non-prior training).
Bio-medical (EMG) Signal Analysis and Feature Extraction Using Wavelet TransformIJERA Editor
This document summarizes research on analyzing electromyography (EMG) signals using wavelet transforms to extract features for classification of muscle activity. A multi-channel EMG acquisition system was developed using surface electrodes to measure forearm muscle signals. Different wavelet families were used to analyze the EMG signals. Features like root mean square, logarithm of root mean square, centroid frequency, and standard deviation were extracted. Root mean square feature extraction performed best. In the future, this method could be used to control prosthetic or robotic arms for real-time processing based on muscle activity.
Provable data possession for securing the data from untrusted serverIJERA Editor
The model described for the use of Provable data Possession which allow the client to access the stored data at
an Untrusted server that the server possesses the original data without retrieving it. This model executes the
probabilistic proof of possession by random set of blocks which is derived from the server that dramatically
reduces the cost of I/O. Sometimes the Client maintenance the constant amount of data which is used to verify
the proof. The response protocol can transmit a small amount of data, which can minimize network
communication. The two provably –Securer PDP Schemes presents more efficient schemes than previous
solution .Even when compared with schemes that achieve weaker guarantees. It is the widely distributed storage
systems. Using the experiment we can implement and verify the practicality of PDP and we can revel that the
performance of the PDP that is bounded by disk I/O and that cannot be determined by computation.
1) The document presents Solar-Tune, a real-time scheduling technique for sporadic tasks on solar energy powered multicore embedded systems. The goal is to fully utilize available solar energy while meeting task deadlines.
2) It uses an integer linear programming algorithm to dynamically refine task scheduling based on solar energy availability predictions. Combined with a utilization-based partitioning method, it achieves lower energy dissipation than existing algorithms.
3) Experimental results show Solar-Tune has a lower task deadline miss rate and better efficiency on multicore systems compared to other algorithms. It achieves over 5% higher solar energy utilization than battery-equipped PV systems.
ENERGY MANAGEMENT SYSTEM FOR CRITICAL LOADS USING POWER ELECTRONICSrenukasningadally
The work aims at an Energy Management System (EMS) for Critical loads using Power Electronics. Here hybrid power sources (Grid and Solar cells) with battery have been used to supply the power to the critical loads at all times, suppose an end user increases his critical loads or non-critical loads this EMS system helps to maintain continuous power supply to these loads. Solar or Photovoltaic cells have been used for storing energy through battery and these batteries will discharge the stored energy at two conditions, one is when grid is shut down for short duration or for a long duration and another one is when there sudden increase in load by users
A Simple Control Strategy for Boost Converter Based Wind and Solar Hybrid Ene...IJRES Journal
This paper deals about the improvement of output from hybrid (Wind and PV) system through the maximum power point technique (MPPT). Though various power tracking techniques are available, Constant Voltage method is simple and effective way to track the maximum power. In this method output voltage is compared with the maximum voltage and based on the comparison gate signal is generated to the boost converter switch. Two boost converters are used individually for PV and Wind system. The whole system is modeled by using the Matlab/Simulink Model.
This project proposes a simplified PV module simulator with MPPT. The PV model is designed in Matlab/Simulink based on various mathematical equations. This paper explains the use of MPPT technique in a photovoltaic system. The MPPT is implemented by incremental conductance or perturbation and observation methods. The overall system is designed, developed and validated by using MATLAB/SIMULINK
Modeling and Simulation of Wind Energy Conversion System Interconnected with ...idescitation
This document summarizes a paper that models and simulates a wind energy conversion system connected to a radial distribution system. It presents the modeling of various components of the wind energy system, including the wind turbine, induction generator, rectifier, DC link controller, inverter, and an incremental conductance maximum power point tracking algorithm. The performance of the wind energy conversion system is analyzed when connected to IEEE 15 bus radial distribution system in MATLAB/Simulink. Simulation results show that integrating distributed generation at optimal locations and sizes can reduce power losses, improve voltage profiles, and increase reliability indices of the distribution system.
Tracking of Maximum Power from Wind Using Fuzzy Logic Controller Based On PMSGIJMER
Wind energy has gained a growing worldwide interest due to the nonstop rise in fuel cost.
The main aim of the wind-energy system is to extract the maximum power present in the wind stream. In
order to extract the highest power, the maximum power point tracking (MPPT) algorithm is used. This
paper proposes the fuzzy logic MPPT controller to track the maximum power from the wind generation
system. The maximum power is achieved based on the rotor speed of the wind system which consists of
wind turbine and PMSG. The error and change in error is given as input to the fuzzy logic and its output
is connected to the boost converter. The voltage from the dc link is controlled by the Voltage Source
Inverter (VSI), and it is placed in grid side converter control. The proposed system is designed and
evaluated in MATLAB/SIMULINK. Simulation results show the good dynamic performance of the
proposed system
Design and simulation of stand alone integrated renewable energy system for r...eSAT Journals
The document describes the design and simulation of a stand-alone integrated renewable energy system for remote areas using solar and wind energy resources. Key points:
- The system was designed to provide electricity to off-grid rural households using local renewable resources to avoid the high costs of grid extension.
- Models of the solar photovoltaic system and variable speed wind turbine with permanent magnet synchronous generator were developed in MATLAB/Simulink.
- The solar and wind systems were integrated by connecting them to a common DC bus, allowing both sources to supply the isolated load. Power conversion circuits like boost converters and inverters were included to condition the output.
- Simulation results of the integrated renewable energy system design
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
The document discusses electrochemical energy storage and its importance for alternative energy applications. It outlines some key challenges with energy storage, including the need for devices with high power and energy capabilities, long life, fast charging, and portability. The author proposes using hybrid energy storage systems that integrate multiple device types to optimize performance for different applications and timescales. The remainder of the document focuses on lithium-ion battery limitations and using mechanical models to understand capacity fade through stresses induced during operation.
GA Based Controller for Autonomous Wind-DG Micro gridIOSRJEEE
This document presents a study on developing a genetic algorithm (GA) based controller for an autonomous wind-diesel microgrid system. The microgrid consists of a permanent magnet brushless DC generator-based wind energy conversion system and a diesel generator. A maximum power point tracking technique using incremental conductance is used to optimize wind power extraction. A voltage source converter acts as a voltage and frequency controller. The document proposes using a GA to tune the parameters of a back propagation feedforward control scheme for the voltage source converter in order to address power quality issues in the microgrid system. Simulation results are presented to analyze the microgrid's performance under changing wind speeds and nonlinear loads.
Stand-alone Hybrid systems become appreciating issues that ensure the required electricity to consumers. The development of a stand-alone Hybrid system becomes a necessity for multiple applications The enhance energy security. To achieve this objective, we have proposed an accurate dynamic model using Multi-Agent System (MAS) in which a solar energy System (SES) serves as the main load supply, an energy Backup System (ERS) is based on a fuel cell and Electrolyzer for long-term energy storage and an Ultra Capacitor (UCap) storage system deployed as a short-time storage. To cooperate with all systems, an Intelligent Power Management (IPM) based on a specific MAS is included. Thus, to prove the performance of the system, we tested and simulated it using the Matlab/Simulink environment.
Wind Turbine Generator Tied To Grid Using Inverter Techniques and Its DesignsIJSRD
The document proposes a method for connecting small 300W wind turbine generators directly to the grid using inverter techniques, without the need for batteries. It describes using a permanent magnet generator coupled with a boost converter and three-phase inverter to stabilize voltage and maximize power extraction using MPPT control. Simulation results show that the proposed system is able to maintain grid voltage and power local loads by controlling active and reactive power flow.
Design and Simulation of Electrification By Solar-Wind Hybrid Systemijtsrd
With the rising energy demand and lack of infrastructure because of geographical condition of Pyin Kha Yaing Village, the whole village is still not inter-connected to National Grid System. This village is located in Ngapudaw Township, Ayarwaddy Division. The latitude and longitude of study case is 15.980992 and 94.400207 respectively. Presently, the electrification of Pyin Kha Yaing Village is carried out by steam boiler driven generator with burning of Rice-Husk. With this source, total average consumption is observed as 3.4 MWh D. Instead of steam boiler generator driven, Solar-Wind Hybrid Generation system is employed for this place. A simulation model for wind-solar hybrid system is developed using the Matlab Simulation software. The proposed model is combination of Wind Energy System, Photovoltaic PV array, Converter, Battery storage and inverter. The simulation model of solar-wind hybrid system for selected region is presented. Aye Ei Ei Cho | Su Su Myat Mon "Design and Simulation of Electrification By Solar-Wind Hybrid System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18946.pdf
http://www.ijtsrd.com/engineering/electrical-engineering/18946/design-and-simulation-of-electrification-by-solar-wind-hybrid-system/aye-ei-ei-cho
The document proposes a smart residential photovoltaic (PV) and energy storage system to reduce energy costs. It presents a system model with PV modules, energy storage elements (EES), and electricity pricing policies. The system uses converters to control energy flow between the PV, storage, and home loads. Simulations show the system with lithium-ion batteries achieves 7-8% more daily cost savings than lead-acid batteries. Advantages include reduced reliance on the electric grid and cleaner energy. Disadvantages are higher initial costs and variable solar output. Future scopes are microinverters and cost competitiveness with conventional energy after 2020.
The document summarizes a research paper that proposes using a battery energy storage system (BESS) with droop control to reduce frequency fluctuations in a multi-machine power system connected to a large-scale photovoltaic (PV) plant. The paper develops a droop control strategy for the BESS that incorporates a frequency error signal and dead-band. Simulation results using PSCAD/EMTDC software show that the proposed droop control-based BESS can efficiently curtail frequency oscillations caused by fluctuations in PV power injection due to changing solar irradiance.
Standalone photovoltaic array fed induction motor driven water pumping system IJECEIAES
Due to the absence of energy transmission lines connected to the water pumping sites in remote areas, problems related to the electrical power outages and the environmental degradation caused by fossil fuel. For this one of the most conceived solutions is the photovoltaic water pumping technology which has the advantage of being sustainable and respectful of the environment to supply water to rural areas. To ensure the need of water, especially for domestic use and small communities, in this article, the photovoltaic energy system for autonomous water pumping using the induction motor was presented, particularly adapted to the isolated regions. Pumping system consists of four photovoltaic (PV) panels, boost converter, inverter, induction motor, centrifugal pump and a storage tank. In this study, the output power of a PV solar cell is fully used by proposing the P&O algorithm, where it is used to follow a maximum power point tracking (MPPT) technique. The recommended system is designed, modeled and simulated on the MATLAB / Simulink platform. The efficiency of the proposed algorithm is observed with variable solar sunshine.
Fuzzy Logic Based Controller Effective Energy Management OfComposite Energy S...IOSR Journals
This document summarizes a research paper that proposes a composite energy storage system (CESS) involving batteries and ultracapacitors for use in microgrids powered by renewable energy sources like photovoltaics. The CESS aims to address the intermittent nature of renewable power generation and fluctuating load demand. It uses both high energy density batteries and high power density ultracapacitors. DAB converters are used to interface the batteries and ultracapacitor to the DC bus. A fuzzy logic controller is proposed for effective energy management between the batteries and ultracapacitor to meet varying power needs. Simulation results demonstrate how the controller can dynamically allocate power demands and manage energy distribution between the storage components.
Measurement and Analysis of Power in Hybrid Systemijeei-iaes
Application with renewable energy sources such as solar cell array, wind turbines, or fuel cells have increased significantly during the past decade. To obtain the clean energy, we are using the hybrid solar-wind power generation. Consumers prefer quality power from suppliers. The quality of power can be measured by using parameters such as voltage sag, harmonic and power factor. To obtain quality power we have different topologies. In our paper we present a new possible topology which improves power quality. This paper presents modeling analysis and design of a pulse width modulation voltage source inverter (PWM-VSI) to be connected between sources, which supplies energy from a hybrid solar wind energy system to the ac grid. The objective of this paper is to show that, with an adequate control, the converter not only can transfer the dc from hybrid solar wind energy system, but also can improve the power factor and quality power of electrical system. Whenever a disturbance occurs on load side, this disturbance can be minimized using open loop and closed loop control systems.
Performance Analysis of DC Micro Grid with PV-Fuel Cell Hybrid GenerationIJMREMJournal
Conventional energy resources are being replaced by Renewable energy sources mainly due to increasing
environmental concerns. Photovoltaic (PV) and Fuel cell (FC) are suitable to be used in modern DC microgrids
due to their DC output. In this research work, a DC microgrid structure is proposed for small residential areas
using hybrid PV and FC generation. Power Electronic converters are used to regulate generated voltage of the
two sources for integration to a common DC bus. Proposed system is simulated using MATLAB SIMULINK to
observe its performance. Simulation results show that output voltage is properly maintained at different DC
A Novel Approach for Moving Object Detection from Dynamic BackgroundIJERA Editor
In computer vision application, moving object detection is the key technology for intelligent video monitoring
system. Performance of an automated visual surveillance system considerably depends on its ability to detect
moving objects in thermodynamic environment. A subsequent action, such as tracking, analyzing the motion or
identifying objects, requires an accurate extraction of the foreground objects, making moving object detection a
crucial part of the system. The aim of this paper is to detect real moving objects from un-stationary background
regions (such as branches and leafs of a tree or a flag waving in the wind), limiting false negatives (objects
pixels that are not detected) as much as possible. In addition, it is assumed that the models of the target objects
and their motion are unknown, so as to achieve maximum application independence (i.e. algorithm works under
the non-prior training).
Bio-medical (EMG) Signal Analysis and Feature Extraction Using Wavelet TransformIJERA Editor
This document summarizes research on analyzing electromyography (EMG) signals using wavelet transforms to extract features for classification of muscle activity. A multi-channel EMG acquisition system was developed using surface electrodes to measure forearm muscle signals. Different wavelet families were used to analyze the EMG signals. Features like root mean square, logarithm of root mean square, centroid frequency, and standard deviation were extracted. Root mean square feature extraction performed best. In the future, this method could be used to control prosthetic or robotic arms for real-time processing based on muscle activity.
Provable data possession for securing the data from untrusted serverIJERA Editor
The model described for the use of Provable data Possession which allow the client to access the stored data at
an Untrusted server that the server possesses the original data without retrieving it. This model executes the
probabilistic proof of possession by random set of blocks which is derived from the server that dramatically
reduces the cost of I/O. Sometimes the Client maintenance the constant amount of data which is used to verify
the proof. The response protocol can transmit a small amount of data, which can minimize network
communication. The two provably –Securer PDP Schemes presents more efficient schemes than previous
solution .Even when compared with schemes that achieve weaker guarantees. It is the widely distributed storage
systems. Using the experiment we can implement and verify the practicality of PDP and we can revel that the
performance of the PDP that is bounded by disk I/O and that cannot be determined by computation.
Fabrication of aluminum foam from aluminum scrapIJERA Editor
In this study the optimum parameters affecting the preparation of aluminum foam from recycled aluminum were studied, these parameters are: temperature, CaCO3 to aluminum scrap wt. ratio as foaming agent, Al2O3 to aluminum scrap wt. ratio as thickening agent, and stirring time. The results show that, the optimum parameters are the temperature ranged from 800 to 850oC, CaCO3 to aluminum scrap wt. ratio was 5%, Al2O3 to aluminum scrap wt. ratio was 3% and stirring time was 45 second with stirring speed 1200 rpm. The produced foam apparent densities ranged from 0.40-0.60 g/cm3. The microstructure of aluminum foam was examined by using SEM, EDX and XRD, the results show that, the aluminum pores were uniformly distributed along the all matrices and the cell walls covered by thin oxide film.
Special Pythagorean Triangles And 9-Digit Dhuruva NumbersIJERA Editor
The document presents 49 Pythagorean triangles with one leg represented by the 9-digit Dhuruva number 554999445. Each triangle satisfies the Pythagorean equation with m and n integer coefficients. 28 of the triangles are primitive and 21 are non-primitive. Additionally, 49 more Pythagorean triangles are presented with expressions for the legs and hypotenuse equaling 554999445, with 18 being primitive and 31 non-primitive. The document examines properties and patterns of numbers in Pythagorean triangles connected to 9-digit Dhuruva numbers.
Compressive Sensing in Speech from LPC using Gradient Projection for Sparse R...IJERA Editor
This paper presents compressive sensing technique used for speech reconstruction using linear predictive coding because the
speech is more sparse in LPC. DCT of a speech is taken and the DCT points of sparse speech are thrown away arbitrarily.
This is achieved by making some point in DCT domain to be zero by multiplying with mask functions. From the incomplete
points in DCT domain, the original speech is reconstructed using compressive sensing and the tool used is Gradient
Projection for Sparse Reconstruction. The performance of the result is compared with direct IDCT subjectively. The
experiment is done and it is observed that the performance is better for compressive sensing than the DCT.
The Inception and Evolution of EIA and Environmental Clearance Process – Layi...IJERA Editor
EIA which stands for environmental impact assessment is a domain which encompasses almost all areas of
environmental engineering. EIA and environmental clearance (EC) are two things which MoEF, Govt. Of India
has mandated for many categories of project before their commissioning. Buildings with built up area of more
than 20000 metre square and townships with area more than 50 Ha or 150000 square metre of built up area
comes under it. A thorough report is made for the possible outcomes of the project (i.e..it‟s impact on
surrounding environment). If the impact is within the limits as specified by MoEF and SEAC, it is sent for
approval otherwise client is suggested to take corrective steps. Scope of the topic trespasses the boundaries of
green house gas emissions and global warming, water and energy crises, carbon emission and sequestration,
environmental pollution of various kind. It was EIA that brought in an element on environment in all projects. It
lead to eco friendly and sustainable construction techniques which paved way for the concept of green building.
Today EIA and environmental clearance are the only protectors of environment from the greeds of corporate
sector across globe. If applied with stringency it will usher us to an era where any advancement will be
apsolutely in tune with nature.This technical paper deals with the birth and growth of EIA in the world and in
India. It deals with the processes that are involved in carrying out EIA for a project and subsequently providing
it with environmental clearance. Also it emphasizes on how EIA led to a general awareness and paved way for
the concept of sustainable construction.
LEAN STARTUP PT.1 EEN PROBLEEM VINDEN DAT OPGELOST MAG WORDENMisha de Sterke
Door Misha de Sterke
van De Sterke Consultancy
Volg me via @mishadesterke
Meer informatie? Ga naar www.mishadesterke.nl of mail naar desterkeconsultancy@gmail.com
A União Europeia está preocupada com o aumento da desinformação online e propôs novas regras para combater as notícias falsas. As novas regras exigiriam que as plataformas de mídia social monitorassem o conteúdo ativamente e removessem rapidamente qualquer conteúdo considerado falso ou enganoso que possa prejudicar a saúde pública ou a segurança. Algumas organizações expressaram preocupações sobre como as novas regras podem afetar a liberdade de expressão.
Robust Strategies of GIS and Geospatial Data mining techniques for drinking g...IJERA Editor
Dependency factors of drought in Maharashtra state of drinking water are groundwater resources, for rural, Urban and Agriculture commercial zone .this situation exploits the development and progress of groundwater management study. No doubt the climate has a vital role in it. So Researcher and decision maker have a new topic of study and research with increasing product of Geospatial data and different temporal of characteristics, geometrics, and Geospatial information systems. And it has been capabilities to control and handle a case like diverse range of geospatial data with varieties of skills. One of the major aspect and issues in geospatial data management is to explore the ratio and future trends of the data and which is smoothly possible with the GIS and Geospatial Data mining techniques and that is being brought into our consideration to discussed and to write this paper on this issue and for this we introduced geospatial data mining applications in drinking ground water quality Management, At last about the abundance of industrial Zones in state of Maharashtra, of India and their effects on water quality in this region, correlation between industrial pollutions and water quality indicators through geospatial data mining has been modeled as a case study at Jalna District Maharashtra.
The paper reports an implementation of Single System Image Server Cluster (SSISC). The Servers have been configured with same MAC and IP addresses and are connected through a two layer switch. Implementation has been done by modifying iptables and recompiling the linux kernel. This implementation has been tested for performance using WebStone. WebStone is a highly- configurable client-server benchmark for HTTP servers. This implementation removes a possibility of single point failure of web cluster. The implementation automatically detects newly added and failed server and hence reliable. The test indicates that requests are distributed to servers in the cluster, depends on the policy of distribution.
A Review and study of the design technique of Microstrip Patch Antenna Techno...IJERA Editor
In this paper,study and survey of microstrip antenna elements is presented, with emphasis on theoretical and
practical design techniques and material used, as previous study have been proved that material used play
significant role in the performance such as gain ,directivity ,frequency of radiation Available substrate materials
are reviewed along with the relation between dielectric constant tolerance and resonant frequency of microstrip
patches. Several theoretical analysis techniques are summarized. Practical procedures are given for both
standard rectangular and circular patches. The quality, bandwidth, and efficiency factors of typical patch designs
are discussed.
The document provides an analysis of the layout, design elements, and conventions used in a Classic Rock magazine. It summarizes each page or spread, describing the masthead, images, headlines, pull quotes, and other common magazine design features. Overall, it finds that the magazine follows typical codes and conventions for layout, using visual hierarchies, color schemes, and design elements to effectively engage and guide readers through the content.
Optimizing of the installed capacity of hybrid renewable energy with a modifi...IJECEIAES
The lack of wind speed capacity and the emission of photons from sunlight are the problem in a hybrid system of photovoltaic (PV) panels and wind turbines. To overcome this shortcoming, the incremental conductance (IC) algorithm is applied that could control the converter work cycle and the switching of the buck boost therefore maximum efficiency of maximum power point tracking (MPPT) is reached. The operation of the PV-wind hybrid system, consisting of a 100 W PV array device and a 400 W wind subsystem, 12 V/100 Ah battery energy storage and LED, the PV-wind system requires a hybrid controller for battery charging and usage and load lamp and it’s conducted in experimental setup. The experimental has shown that an average increase in power generated was 38.8% compared to a single system of PV panels or a single wind turbine sub-system. Therefore, the potential opportunities for increasing power production in the tropics wheather could be carried out and applied with this model.
Modeling and performance analysis of a small scale direct driven pmsg based w...Alexander Decker
This document summarizes a journal article that models and analyzes the performance of a small-scale direct-driven wind energy conversion system using a permanent magnet synchronous generator (PMSG) connected directly to the grid through a power electronic interface. It presents the modeling of the system components, including the wind turbine, PMSG, and power conditioning system consisting of a rectifier, boost chopper, and inverter. The power flow is analyzed for different wind velocities and the effect of duty ratio and modulation index on maximum power extraction is studied through MATLAB/SIMULINK simulations.
11.modeling and performance analysis of a small scale direct driven pmsg base...Alexander Decker
This document summarizes a research paper that models and analyzes the performance of a small-scale direct-driven wind energy conversion system using a permanent magnet synchronous generator (PMSG). The system includes a PMSG connected directly to the grid through a power electronic interface. The interface includes a rectifier, boost chopper, and inverter to convert the variable voltage/frequency output of the generator to a fixed voltage/frequency for the grid. The system components are modeled in MATLAB/Simulink and simulations are performed to analyze power flow under different wind velocities. The effect of duty ratio and modulation index on maximum power extraction is also studied. Optimum duty ratios for different wind speeds are determined.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Design and simulation of stand alone integrated renewable energy system for r...eSAT Journals
Abstract
The availability of energy plays an important role in the development of a country.Electricity availability is essential for economical growth and improvementin quality of life of rural and semi-urban population. In order to achieve this, rural electrification should gain importance. Rural electrification requiresgrid extensionofthe existing power systemto remote areas which is difficult and costly. Impact of burning fossil fuels on environment andrapid depletion increases the supply demand gap. Development of Integrated Renewable Energy System for isolated load is a promisingway outfor rural electrification. Integrated renewable energy systems generate power making use of renewable energy sources that are available regionally which can electrify rural households. In this paper, an attempt has been made to develop an Integrated renewable energy system for power generation using solar and wind resources.Integration of solar and wind systems has been done for supplying isolated load and the model has been implemented in MATLAB/SIMULINK and the results are summarized.
Frequency control in a microgrid including controllable loadIAEME Publication
This document summarizes a research paper that proposes a method for frequency control in microgrids that includes renewable energy sources, energy storage devices, and controllable loads. The microgrid model analyzed includes solar power, wind power, batteries, supercapacitors, and electric water heaters. The document describes the components of the microgrid, simulation parameters and assumptions. Frequency control is achieved by coordinating the energy storage devices and generators using optimized proportional-integral controllers. Electric water heaters can also help control frequency by adjusting their operating temperature setpoints in response to frequency deviations.
This paper describes the Grid connected solar photovoltaique system using DC-DC boost converter and the DC/AC inverter (VSC) to supplies electric power to the utility grid. The model contains a representation of the main components of the system that are two solar arrays of 100 kW, boost converter and the grid side inverter. The paper starts with a system description, in this part we have given a definition and a short overview of every component used in this system and they are taken separately. The PV cell model is easy, accurate, and takes external temperature and solar radiation into consideration. It also proposes a maximum power point tracking (MPPT) algorithm. The algorithm incorporated in a DC/DC converter is used to track the maximum power of PV cell. Finally, the DC/AC inverter (VSC) of three- level is used to regulate the ouput voltage of DC/DC converter and connects the PV cell to the grid. Simulation results show how a solar radiation’s change can affect the power output of any PV system, also they show the control performance and dynamic behavior of the grid connected photovoltaic system.
Electric Vehicle as an Energy Storage for Grid Connected Solar Power SystemIAES-IJPEDS
In the past few years the growing demand for electricity and serious concern
for the environment have given rise to the growth of sustainable sources like
wind, solar, tidal, biomass etc. The technological advancement in power
electronics has led to the extensive usage of solar power. Solar power output
varies with the weather conditions and under shading conditions. With the
increasing concerns of the impacts of the high penetration of Photovoltaic
(PV) systems, a technical study about their effects on the power quality of
the utility grid is required. This paper investigates the functioning of a gridtied
PV system along with maximum power point tracking (MPPT)
algorithm. The effects of varying atmospheric conditions like solar irradiance
and temperature are also taken into account. It is proposed in this work that
an Electric Vehicle (EV) can be used as an energy storage to stabilize the
power supplied to the grid from the photovoltaic resources. A coordinated
control is necessary for the EV to obtain desired outcome. The modeling of
the PV and EV system is carried out in PSCAD and the proposed idea is
verified through simulation results utilizing real field data for solar irradiance
and temperature.
Solar Wind Hybrid Generation System Integration with Gridijtsrd
Wind and solar energy are becoming popular owing to the abundance, availability and ease of harnessing the energy for electrical power generation. This paper focuses on an integrated hybrid renewable energy system consisting of wind and solar energies. Grid tied power generation systems make use of solar PV or wind turbines to produce electricity and supply the load by connecting to the grid. In this study, the HOMER Hybrid Optimization Model for Electric Renewable MATLAB modeling has been used to model the power system, its physical behavior and its life cycle cost. Through the use of simulations, the installation of ten 2 MW wind turbines and 2.5 MW solar PV was evaluated. Shahid Ahmad Malik | Muhammad Shahid "Solar-Wind Hybrid Generation System Integration with Grid" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38452.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/38452/solarwind-hybrid-generation-system-integration-with-grid/shahid-ahmad-malik
This document describes a hybrid energy management system based on a fuzzy logic controller for power distribution. The system uses four power sources - wind power, photovoltaics, fuel cells, and electric power - connected to a common DC bus. An automatic energy management system provides load sharing between the power sources based on the load demand. Experimental results show that the system can successfully meet different load levels of 1000W, 2000W, and 3000W by distributing power from the sources according to the fuzzy logic controller and without wasted power.
IRJET- Frequency Control of Distributed Generators in Microgrid with ANFIS Co...IRJET Journal
This document describes a microgrid system with distributed generators including solar panels, wind turbines, and a diesel generator. Energy storage devices like batteries and fuel cells are also included. Frequency control of the system is challenging due to varying renewable energy output. The document proposes using an Artificial Neuro-Fuzzy Inference System (ANFIS) controller to improve frequency control performance compared to conventional controllers like PI. MATLAB/Simulink models are developed to simulate the microgrid components and evaluate the ANFIS controller.
Design an electric vehicle using PV array with five phase permanent magnet sy...ijtsrd
The purpose of this project is to design an Electrical vehicle with help renewable energy source which can carry the lab equipment, books and other goods from one building to other building of AL FALAH UNIVERSITY also student as well as professors can go easily from one building to other building of AL FALAH UNIVERSITY. This paper gives a review of the electric vehicle technology that focuses on the types of drives and the control of speed of five phase permanent magnet synchronous motor. This paper highlights the characteristics, performance measure, requirements and the operational procedure of the electric vehicle drives and control. Dhirender Kumar | Ameen Uddin Ahmad "Design an electric vehicle using PV array with five-phase permanent magnet synchronous motor." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29173.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/29173/design-an-electric-vehicle-using-pv-array-with-five-phase-permanent-magnet-synchronous-motor/dhirender-kumar
Design of Integrated Generator-Rectifier System to Determine the Maximum Powe...IRJET Journal
This document summarizes a research paper that proposes a fuzzy logic controller-based maximum power point tracking system for an integrated generator-rectifier system used in offshore wind turbines. The system combines a permanent magnet synchronous generator with active and passive rectifiers. A fuzzy logic controller analyzes the d-axis current of the active rectifier to achieve maximum power point tracking and improve the efficiency of the wind energy conversion system. The proposed method is assessed using MATLAB/Simulink simulations. It is suggested that the integrated system using a fuzzy logic controller can help reduce the levelized cost of energy for offshore wind power applications.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Modeling and Analysis of Hybrid Ac Micro-GridIRJET Journal
This document presents a study on modeling and analyzing a hybrid AC microgrid system using MATLAB. The microgrid combines solar and wind energy sources along with a battery backup system. Photovoltaic panels and a wind turbine are modeled to generate DC power from solar and wind energy. A boost converter increases the low DC voltage from the sources before passing it to an SPWM inverter that converts it to AC. The battery provides backup power storage. Simulation results are presented for the different components and the integrated hybrid microgrid system. The microgrid can operate both connected to and isolated from the main utility grid to provide reliable power for local loads.
Modeling of Wind Energy on Isolated AreaIJPEDS-IAES
In this paper, a model of the wind turbine (WT) with permanent magnet generator (PMSG) and its associated controllers is presented. The increase of wind power penetration in power systems has meant that conventional power plants are gradually being replaced by wind farms. In fact, today wind farms are required to actively participate in power system operation in the same way as conventional power plants. In fact, power system operators have revised the grid connection requirements for wind turbines and wind farms and now demand that these installations be able to carry out more or less the same control tasks as conventional power plants. For dynamic power system simulations, the PMSG wind turbine model includes an aerodynamic rotor model, a lumped mass representation of the drive train system and generator model. In this paper we propose a model with an implementation in MATLAB / Simulink, each of the system components off-grid small wind turbines.
14 9737 lightning paper id 0005 edit septianIAESIJEECS
Study the impacts of lightning-induced transient overvoltage on a hybrid PV-Wind system has been addressed in this work. Overvoltage that is generated due to lightning stroke travels along the system where it can be very harmful to the expensive equipment of the system such as PV models, inverters, charge controllers, batteries, transformers, and generator etc. The simulation model of a system has been completed by using PSCAD/EMTDC software. The system comprises of 2 MW PV farm, battery system, 2.1 MW wind farm and loads which are all connected to the common AC bus and then to the utility grid through an interfacing transformer. Lightning current is generated by using the double exponential function, from the simulation results, when the lightning current is injected to the AC and DC sides of PV system, the transient current and voltage have appeared at different points of the hybrid system. The results were obtained for 8/20 μs and 10/350 μs standards lightning waveforms with current magnitude of 100 kA.
Battery energy storage and power electronics based voltage and frequency cont...IAEME Publication
This document summarizes a system for connecting a wind turbine to the electric grid using battery energy storage and power electronics for voltage and frequency control. The system includes an asynchronous generator, uncontrolled rectifier, PWM inverter, DC link capacitor, and battery storage. Simulation results in MATLAB demonstrate the system's ability to generate grid-quality power from a wind turbine while regulating voltage and frequency. The battery storage compensates for fluctuations from the intermittent wind power and supports strengthening the generator's connection to the grid.
IRJET- Simulation of Solar PV and DG based Hybrid Micro GridIRJET Journal
This document summarizes a study that simulated a hybrid microgrid system combining solar photovoltaics and a diesel generator to provide electricity for rural areas. The system was modeled in MATLAB/Simulink and included solar PV panels, a diesel generator, boost converters, an inverter, a DC bus, an AC bus, loads and a dump load. The solar PV was designed to produce 1.5 kW of power and the diesel generator was also designed for 1.5 kW, with both sources combined to generate a total of 3 kW for off-grid use. The simulation examined the operation and control of the hybrid system components to stabilize power supply from the various renewable and non-renewable energy sources.
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DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
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train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
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Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
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IEEE Slovenia GRSS
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11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Simulation of generalized hybrid model for solar and wind power generation
1. Vankadara Sampath kumar Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.123-129
www.ijera.com 123 | P a g e
Simulation of generalized hybrid model for solar and wind power
generation
Vankadara Sampath kumar*, Dr. A. Srinivasa rao**
*(M. Tech, Department of electrical and electronics engineering, GITAM University, Visakhapatnam, INDIA)
**(Professor, Department of electrical and electronics engineering, GITAM University, Visakhapatnam,
INDIA)
ABSTRACT
Due to urbanization, globalization and industrialization the demand for energy is rapidly increasing allows the
world and India is not an exception. Out of all energies electrical energy is playing a major role in developed as
well as developing countries. The energy is mostly produced by fossil fuels which are developing day his is to by
day .they also produce lot of pollutants which totally damage the environment the alternative to this is to
encourage renewable energy source. Now days the energy production at domestic level is becoming popular with
the help of solar and wind energies . These technologies are widely used now days in the present paper an
attempt has been made to simulate a generalized hybrid model including solar and wind.
Keywords – DC Link, PMSG, WECS , Hybrid.
I. INTRODUCTION
In this paper main objective of our work is to
Generate Electricity in eco-friendly way. Increasing
population results rise in Energy demands day by day
we have only limited conventional resources. In this
crucial stage of energy availability, alternative way of
power generation has to be taught of Solar and wind
are clean renewable energy sources. It is one time
investment and prevents global warming.
For optimal sizing of all the components and to
minimize cost of wind diesel electrical power
generation an algorithm is developed [15].Small
autonomous power systems (SAPS) like solar and
wind power sources are well-being accessed with
systematic analytical approach avoids the cost
concern and shortage of conventional resources
To minimize the life cycle cost a generalized
model is developed based on different system
components of a hybrid energy system and an
optimal combination of energy components for a
typical rural community [16].Small-scale hybrid PV-
Wind generation system works only in standalone
mode with batteries. The power conditioning unit is
used to maximize the output power from both the
wind and the PV generators to the batteries the power
ratings and load management are not taken into
account. A design supervisory controller based on the
sliding mode control is presented in reference [8].
In this paper the generalized block diagram
consists of 5.6kW PMSG based wind energy
conversion system and solar array of 2.7kw. At the
load individual boost converters are used . Two
sources are connected in parallel to a common DC
bus link. Output of this common DC link is
connected to a three Phase SPWM Inverter. Power
will be generated with the help of both photovoltaic
& wind energy and will be supplied to the bus bar
from where power is supplied to the load. Flow of
power scheme can be observed as PV array—DC/DC
Boost converter—Common DC link. For wind
energy, Power flow can be observed as Wind
energy—Turbine—PMSG—Rectifier—Boost
Converter— Common DC Link. DC link common
voltage is given as an input to the 3 phase SPWM
Inverter. Operation of Boost converter takes place in
a closed loop to maintain the constant DC output
voltage. The entire circuit simulation is done by using
MATLAB/SIMULINK environment.
II. Original Diagram and Description
The complete layout of wind-solar hybrid system
which supplies either ac or dc or both is shown
figure-1
Figure-1 Hybrid Model Block Diagram
RESEARCH ARTICLE OPEN ACCESS
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A. Photovoltaic (P.V) Solar Modules
Figure2 indicates typical block diagram of PV
system Using silicon being a main constituent of sand
which one of the most abundant element on earth is
used in the manufacturing of solar cell also known as
photovoltaic cell. Combination of several solar cells
design is said to be solar module and it is also an
weather proof unit. Incident light is absorbed by the
solar cell which is diode and it is converted into
electricity. Physically and electrically connected solar
modules will give rise of solar panels. Energy
consumption must be estimated to determine the size
of PV modules. Therefore size of PV module is
calculated as Wp [5].
Energy consumption measures in watts or
kilowatts where isolation is in KWh/m2
/Day.
Figure 2 Photovoltaic System
Block diagram consists of solar panels which it
absorbs the light energy from sunlight by using
MPPT controller and the obtained electrical energy is
converted from dc to ac and it is given to load the
controller is assisted by battery for continuous
supply. The ratings of the solar cell in the panel is
given below.
Specification of single solar cell: Nominal Power
Pmax =85W, Voltage at maximum power =29.12V,
Current at maximum power =5.95A, Open circuit
voltage of single module =36.02V, Short circuit
current =7.78A, Solar cell per module =36, Open
circuit voltage of single solar cell =0.6V, Irradiance
=1000W/m2, So in order to obtain the 2.2kW power
output we connected 17 module in series.
B. Wind Power Modelling
Conversion of wind energy to electrical Energy
and to predict the output production of wind turbine
generators (WTG) various mathematical models have
been developed. For this purpose a statistical function
found which known as Weibull distribution function
is used to find the wind distributed in the site selected
of the case study and monthly/annually mean speed
of the wind at the site. Therefore the Weibull
distribution function accepted more for this
purpose.[10,11] .The two parameter Weibull
distribution function mathematically expressed in
Eq[2],the cumulative distribution function it has in
Eq 4 is given as Speed of wind is V-shape parameter
is k which is dimension less, scale parameter of the
distribution function is C (m/s),
To determine C and K widely accepted
approximations are given in equations 1 and 2
respectively [11,12]
(1)
C= (2)
Where V´ = mean speed (ms-1
)
Area swept out by the rotor and the density of the air
and the cube of the wind speed is directly
proportional to the amount of power transferred to a
wind turbine, the power P in the Wind is given by
The power P in the wind is given by
P = ½ Cp. ρ.A. V´3
(3)
Power coefficient of the turbine is given by Cp,
A maximum theoretical value of 0.593 been proposed
for Cp[8,9]
ρ = Air density (kg/m3),
A (Rotor swept area) = (m2
) (4)
Where D is diameter of rotor blade(m) and
V1
=Mean speed of wind(ms-1)
Wind Energy Conversion System
Pm (watts) = 1/2 ρ*A*V3
*Cp
Pm is the mechanical output power of the turbine.
Cp is the turbine power coefficient,
ρ is the air density,
A is the turbine swept area,
V is the wind speed
Function of tip speed ratio λ given by:
λ = Ω*R/V
Ω: Rotational speed of blades
R: Radius of turbine blades
V: Wind speed
Figure-4 Simulink model of wind energy conversion
system
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C. Battery Subsystem
In enhancing systems which are hybrid battery
energy storage system (BESS) has a great
significance which stabilizes and permits the system
to maintain at a constant and stable output despite of
load fluctuations .It also covers the deficient energy
in case where there is a lack of primary energy
sources like sun and wind. To meet the challenges of
utility application battery technology have been
improved significantly. The high energy density,
round trip efficiency, high energy capability, cycling
capability, initial cost and life span are key factors of
battery for storage applications. Various types of
battery technologies are available for large scale
storage energy system, but the lead acid technology is
a low cost option and mature technology which is
suitable in rapid discharge/charge large bulk storage
system but limited life cycle and the low energy
density are to be the main disadvantage of this
technology
Battery simulation model:
Figure-5:Simulink model of battery bank
Figure-6 Simulink model
D. Modelling of 3 phase SPWM inverter
DC electricity from sources such as solar panels,
batteries, or fuel cells to AC electricity by an
inverter.at any required voltage in particular
operation AC equipment is designed for mains
operation electricity.in the presence of main supply
the battery voltage is maintained constant by using
controlled chargers however in the absence of mains
the output voltage can be decreased by decreasing the
battery voltage. Output voltage can be changed by
variation of load. Web browsers, industrial
instrumentation, note book computers, entertainment
systems and automotive are used this constant current
output voltage inverters. Wide range of topologies
are available in the sine wave inverters.by using
toroidal transformer with an output filter high
frequency switching is possible with a DC link in the
CVT(Current voltage transformer) and secondary .the
common goal is to bring the sinusoidal output. But
the output waveforms get distorted and efficiency
gets effect due to certain critical loads such as
computers, fluorescent lights with electronic ballasts,
television, microwave ovens etc.
Figure-7 Simulation model of spwm inverter
E. Modelling of boost converter
Boost converter is used to step-up the dc output
voltage of both the energy systems. Boost converter
used here is operating in a closed loop which
maintains the dc output voltage at the common dc
link as constant irrespective of the environmental
variation. That results in the fluctuation of dc output
from both the energy systems. Closed loop operation
is done by using PID controller. Here for example
435V as an output of boost converter so we fixed the
reference input of PID controller as 435V and this
reference is compared with the output voltage of
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boost converter, and the error signal is goes to the
PWM block, inside the PWM block we have a carrier
signal of very high frequency which is compared
with the error signal of PID controller. Frequency of
carrier signal is kept at 20 KHz.
Figure-8 Circuit Diagram of Boost Converter
Basic Configuration of a Boost Converter:
Shows the basic configuration of a boost
converter where the switch is integrated in the used
Integrated circuit. Lower power converters which are
having the diode are replaced by a second switch
which is integrated to the converter. If this is the
case, all equations in this document apply besides the
power dissipation equation of the diode.
Figure9-boost converter-close loop
Necessary Parameters of the Power Stage
1. Input voltage range: Vin (max) and Vin (min)
2. Nominal output voltage: Vout
3. Maximum output current: Iout(max)
4. Integrated circuit which uses to develop the
boost converter
By knowing the above parameters power stage
calculation can be done by mat lab program given
below
USER DEFINED PROGRAM FOR BOOST
CONVERTER
% the following are four parameters needed to
calculate the power stage:
%1.input voltage range: Vin (max) and Vin (min)
%2.Nominal output voltage: out
%3.maximum output current: out(max)
clc;
disp('boost converter calculation')
Vin=input('ener the minimum input voltage::');
Vin1=input('ener the maximum input voltage::');
Vout=input('enter the output voltage::');
I=input('enter the maximum output current::');
fs=input('enter the switching frequency;;');
%calculation of maximum switch current
n=0.9;
D=1-((Vin*n)/Vout);%duty cycle
di=2*I*(Vout/Vin);%inductor ripple current
L=(Vin*(Vout-Vin))/(di*fs*Vout);%inductor value
%dv=(I/(1-D))+(di/2);
dv=0.5
c=I*D/(fs*dv);%output capacitor value
R=Vout/I;
disp('duty cycle')
D
disp('INDUCTOR VALUE::::')
L
disp('voltage ripple:::')
dv
disp('capacitor value microfarad:::')
C=c;
C
R
disp('*****')
F.Rectifier Simulink modelling
Figure10-rectifier simulink model
III. ANALYSIS OF RESULTS:
Simulating the above circuits we get the
following results
A. PV Module power ,current and voltage out puts
in hybrid model is given below the parameters
are also given to obtain the desired output and
the output of the PV is given to the boost
converter as shown in the main block diagram
Output Voltage = 505 V getting constant
corresponding to 1000 insolation Each PV
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module produces =32.97V
Output Power = 2022 W getting constant
corresponding to 1000 insolation
Each PV module produces 131.88W
Figure11-pv results
B.
Figure12-wind power results
C.
Figure14-voltage in wind system
D. Boost converter programme results:
1 Min
i/p
volt
age
Max
i/p
volta
ge
Outpu
t
voltag
e
Outpu
t
curre
nt
Switc
hing
frequ
ency
Comp
onent
s
502.
5
502.
5
1500 48 10000
0
Dut
y
Cyc
le
Di Induc
tor
Value
(L)
Volta
ge
Rippl
e
Capac
itance
(µF)
Resist
ance
0.5 226.
87
1.473
0*e^-
005
0.5 5.817
8*e^
-004
39.47
37
2 Min
i/p
volt
age
Max
i/p
volta
ge
Outpu
t
voltag
e
Outpu
t
curre
nt
Switc
hing
frequ
ency
Comp
onent
s
435 435 1000 28 40000
Dut
y
Cyc
le
Di Induc
tor
Value
(L)
Volta
ge
Rippl
e
Capac
itance
(µF)
Resist
ance
0.5 128.
735
4.772
9*e^-
005
0.5 9.737
0*e^
-004
35.71
3
3 Min
i/p
volt
age
Max
i/p
volta
ge
Outpu
t
voltag
e
Outpu
t
curre
nt
Switc
hing
frequ
ency
Comp
onent
s
420 420 1000 28 30000
Dut
y
Cyc
le
Di Induc
tor
Value
(L)
Volta
ge
Rippl
e
Capac
itance
(µF)
Resist
ance
0.5 128.
735
4.772
9*e^-
005
0.5 9.737
0*e^-
-004
32
E. Boost converter:
Figure13-boost converter current and voltage output
F.
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ISSN : 2248-9622, Vol. 5, Issue 3, ( Part -1) March 2015, pp.123-129
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Figure14-Output Current Wave Form Of Spwm
Inverter
G. Results obtained from rectifier:
Figure15-rectifier output voltage
H.
Figure16-Results of battery model
I.
Figure17-output voltage of dc-link in system
IV. CONCLUSION
Simulation of the PV cells, wind energy
conversion system ,boost converter ,inverter,
rectifier, single pulse width modulated inverter done
by using Simulink mat lab .Boost converter triggered
by using GTOs with the help of PWM technique and
the output of the individual is given to DC link.
The combined output which is given to grid by
using stepdown transformer used for various
applications . I can be further improved by including
other renewable sources like fuel cells, geothermal
etc.
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