STATCOM.pptx
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This document presents information about a STATCOM (Static Synchronous Compensator) in 3 sections. It introduces STATCOM as a compensator used to improve power quality by regulating reactive AC power flow. It then reviews literature describing STATCOM components and operation. Finally, it outlines the advantages of STATCOM including continuous voltage control, high efficiency, fast response time, and reactive power compensation.
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IJERD(www.ijerd.com)International Journal of Engineering Research and Develop...
1) The document describes modeling and simulation of a DSTATCOM (distribution static synchronous compensator) to improve power quality in a distribution system feeding both linear and non-linear loads.
2) A MATLAB/Simulink model of a DSTATCOM power circuit and control system is developed. Simulation results under different load conditions are presented to demonstrate the DSTATCOM's ability to provide power factor correction, harmonic compensation, and reactive power support.
3) Key findings include that the DSTATCOM can balance unbalanced loads, improve the source power factor to unity, and regulate voltages under transient conditions like load changes within one cycle.
www.ijerd.com
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
We follow "Rigorous Publication" model - means that all articles appear on IJERD after full appraisal, effectiveness, legitimacy and reliability of research content. International Journal of Engineering Research and Development publishes papers online as well as provide hard copy of Journal to authors after publication of paper. It is intended to serve as a forum for researchers, practitioners and developers to exchange ideas and results for the advancement of Engineering & Technology.
www.ijerd.com
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
We follow "Rigorous Publication" model - means that all articles appear on IJERD after full appraisal, effectiveness, legitimacy and reliability of research content. International Journal of Engineering Research and Development publishes papers online as well as provide hard copy of Journal to authors after publication of paper. It is intended to serve as a forum for researchers, practitioners and developers to exchange ideas and results for the advancement of Engineering & Technology.
1.compensation of reactive power using d statcom in grid interfaced pv system
This document summarizes a research paper on using a D-STATCOM (Distribution Static Compensator) with an LCL passive filter to compensate for reactive power and improve power quality in a grid-interfaced photovoltaic (PV) system. The D-STATCOM injects current to mitigate voltage fluctuations. Simulation results show improvements in three-phase output voltage at the transmission and distribution levels as well as increased power generation from both the transmission system and PV system. In conclusion, the integration of FACTS devices like the D-STATCOM can help maintain desired power quality standards while reducing distortions and improving the power factor.
Comparative analysis of a cascaded seven level and five level mli based distr...
This document summarizes a research paper that compares a cascaded seven-level and five-level multilevel inverter-based distribution static synchronous compensator (DSTATCOM) for compensating harmonics and reactive power using reference frame theory. The paper presents the configuration of a DSTATCOM using a cascaded multilevel inverter with five levels and seven levels. It describes the operation and switching states of the five-level and seven-level inverters. It also discusses the reference current control strategy used, which generates the reference currents required to compensate load current harmonics and reactive power based on instantaneous real-power theory. The control scheme aims to maintain the DC bus voltage constant. The proposed DSTATCOM system is
I41045662
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.
REDUCING SOURCE CURRENT HARMONICS DUE TO BALANCED AND UN-BALANCED VOLTAGE VAR...
This document summarizes a research paper that examines reducing current harmonics due to voltage variations using a fuzzy-controlled D-STATCOM. It begins with an introduction that describes the increasing need for power quality improvements and custom power devices. It then provides details on the principal and control strategy of a D-STATCOM, which uses a voltage source converter to inject current and regulate voltage. The proposed method uses an instant power theory with fuzzy logic control of the D-STATCOM to generate reference currents, providing better compensation than a proportional-integral controller. Simulation results showed the fuzzy control approach more accurately compensated for distorted currents and reactive power under both steady and transient states.
A seven level cascaded multilevel dstatcom for compensation of reactive power...
This document describes a seven-level cascaded multilevel DSTATCOM system for compensating reactive power and harmonics. It uses a cascaded H-bridge multilevel inverter with either phase shifted PWM or level shifted PWM modulation techniques. Simulation results show the system is able to compensate load current harmonics and reactive power, reducing the total harmonic distortion of source currents from 36.89% to 4.37% with a seven-level inverter using phase shifted PWM. The DSTATCOM provides unity power factor correction at the point of common coupling.
Recommended
IJERD(www.ijerd.com)International Journal of Engineering Research and Develop...
1) The document describes modeling and simulation of a DSTATCOM (distribution static synchronous compensator) to improve power quality in a distribution system feeding both linear and non-linear loads.
2) A MATLAB/Simulink model of a DSTATCOM power circuit and control system is developed. Simulation results under different load conditions are presented to demonstrate the DSTATCOM's ability to provide power factor correction, harmonic compensation, and reactive power support.
3) Key findings include that the DSTATCOM can balance unbalanced loads, improve the source power factor to unity, and regulate voltages under transient conditions like load changes within one cycle.
www.ijerd.com
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
We follow "Rigorous Publication" model - means that all articles appear on IJERD after full appraisal, effectiveness, legitimacy and reliability of research content. International Journal of Engineering Research and Development publishes papers online as well as provide hard copy of Journal to authors after publication of paper. It is intended to serve as a forum for researchers, practitioners and developers to exchange ideas and results for the advancement of Engineering & Technology.
www.ijerd.com
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
We follow "Rigorous Publication" model - means that all articles appear on IJERD after full appraisal, effectiveness, legitimacy and reliability of research content. International Journal of Engineering Research and Development publishes papers online as well as provide hard copy of Journal to authors after publication of paper. It is intended to serve as a forum for researchers, practitioners and developers to exchange ideas and results for the advancement of Engineering & Technology.
1.compensation of reactive power using d statcom in grid interfaced pv system
This document summarizes a research paper on using a D-STATCOM (Distribution Static Compensator) with an LCL passive filter to compensate for reactive power and improve power quality in a grid-interfaced photovoltaic (PV) system. The D-STATCOM injects current to mitigate voltage fluctuations. Simulation results show improvements in three-phase output voltage at the transmission and distribution levels as well as increased power generation from both the transmission system and PV system. In conclusion, the integration of FACTS devices like the D-STATCOM can help maintain desired power quality standards while reducing distortions and improving the power factor.
Comparative analysis of a cascaded seven level and five level mli based distr...
This document summarizes a research paper that compares a cascaded seven-level and five-level multilevel inverter-based distribution static synchronous compensator (DSTATCOM) for compensating harmonics and reactive power using reference frame theory. The paper presents the configuration of a DSTATCOM using a cascaded multilevel inverter with five levels and seven levels. It describes the operation and switching states of the five-level and seven-level inverters. It also discusses the reference current control strategy used, which generates the reference currents required to compensate load current harmonics and reactive power based on instantaneous real-power theory. The control scheme aims to maintain the DC bus voltage constant. The proposed DSTATCOM system is
I41045662
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.
REDUCING SOURCE CURRENT HARMONICS DUE TO BALANCED AND UN-BALANCED VOLTAGE VAR...
This document summarizes a research paper that examines reducing current harmonics due to voltage variations using a fuzzy-controlled D-STATCOM. It begins with an introduction that describes the increasing need for power quality improvements and custom power devices. It then provides details on the principal and control strategy of a D-STATCOM, which uses a voltage source converter to inject current and regulate voltage. The proposed method uses an instant power theory with fuzzy logic control of the D-STATCOM to generate reference currents, providing better compensation than a proportional-integral controller. Simulation results showed the fuzzy control approach more accurately compensated for distorted currents and reactive power under both steady and transient states.
A seven level cascaded multilevel dstatcom for compensation of reactive power...
This document describes a seven-level cascaded multilevel DSTATCOM system for compensating reactive power and harmonics. It uses a cascaded H-bridge multilevel inverter with either phase shifted PWM or level shifted PWM modulation techniques. Simulation results show the system is able to compensate load current harmonics and reactive power, reducing the total harmonic distortion of source currents from 36.89% to 4.37% with a seven-level inverter using phase shifted PWM. The DSTATCOM provides unity power factor correction at the point of common coupling.
Bd32773778
This document summarizes a research paper about using a Z-Source Inverter (ZSI) based STATCOM to enhance power quality in a thirty bus power system. It first provides background on power quality issues and how Flexible AC Transmission Systems (FACTS) devices like STATCOMs can help address them. It then describes the components and operation of a conventional STATCOM and introduces the ZSI as an alternative inverter topology. The research presented in the paper models and simulates a thirty bus system both with and without a ZSI-based STATCOM to study improvements in voltage regulation and reactive power compensation.
Design modelling and Simulation of DSTATCOM for distribution lines for power ...
This document discusses the design, modeling, and simulation of a DSTATCOM (distribution static synchronous compensator) to improve power quality on distribution lines. It presents a study on modeling a STATCOM used for reactive power compensation. A three-phase IGBT-based voltage source inverter known as a DSTATCOM is used for power factor correction, harmonic compensation, and providing reactive power to loads. A model of a DSTATCOM connected to a distribution system feeding linear and non-linear loads is developed in MATLAB to analyze system behavior under transient conditions. The performance of the DSTATCOM is investigated under various fault conditions.
POWER QUALITY IMPROVEMENT AND FAULT RIDE THROUGH OF GRID CONNECTED WIND ENE...
This work tries to improve the power quality by compensating reactive power with Active Power Filters and also to analyze Fault Ride Through of Grid connected wind energy conversion systems.
fault ride through- doubly fed induction generator
1) The document discusses improving power quality and fault ride through capability of grid connected wind energy conversion systems.
2) It aims to compensate reactive power using active power filters to improve power quality and analyze the fault ride through of grid connected wind turbines.
3) A crowbar protection scheme is analyzed to enhance the system's power quality and meet grid code requirements by controlling the doubly fed induction generator through vector control strategies.
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...IJET - International Journal of Engineering and Techniques
Distribution Static Synchronous Compensator (DSTATCOM) is a shunt compensating device which is used
to improve current profile by exchanging of reactive power with unbalanced and nonlinear load. DSTATCOM is a
shunt compensating device used for power quality improvement in distribution systems. Relevant solutions are
applied for harmonics, fluctuation of voltage, voltage deviation, unbalance of three phase voltage and current and
frequency deviation. Different controlling schemes such as Phase Control Method (PCM), Fryze Power Theory
(FPT), Synchronous Reference Frame Theory (SRFT) and Instantaneous Reactive Power Theory (IRPT) are used
for reactive power compensation with the help of Voltage source Inverter (VSI). In this project we are going to
balance the source current using different control schemes. The results of different source currents are compared
with a different control schemes in terms of active and reactive power and in terms of Total Harmonic Distortion
(THD) for nonlinear load using Fryze Power Theory (FPT) and Instantaneous Reactive Power Theory (IRPT).
Reference currents are generated by the different control schemes have been dynamically traced in a hysteresis
current controller. The performance of DSTATCOM for different control schemes is validated for load balancing
and harmonic elimination by using simulation models in MATLAB/SIMULINKThe Shunt Active Power Filter to Compensate Reactive Power and Harmonics with...
In this paper is to study the denomination Power quality and large refers to maintaining a proximal sinusoidal power distribution bus voltage at rated magnitude and frequency. This is mainly affected by the generation of harmonics. Even though electronic and non-linear devices are flexible, economical and energy efficient, they may degrade power quality by creating harmonic currents and consuming excessive reactive power. This paper shows the method of improving the power quality using shunt active power filter with proposed optimized PI. The proposed topic comprises of PI controller, filter hysteresis current control loop, dc link capacitor. The switching signal generation for filter is from hysteresis current controller techniques. With the all these element shunt active power filter reduce the total harmonic distortion. Its source current, compensating current and THD values are studied, then PI control strategy is applied then the differences in THD are compared. The PI feedback compensation design starts with the small signal system' transfer function. Then an optimum constant of PI for a Shunt-APF is proposed and implemented to enhance its response to compensation of harmonics of linear and non-linear loads. The obtained results have demonstrated the ability to compensate the current harmonics effectively under distorted source conditions. The fluctuation in the dc bus voltage of the filter depends on the compensation speed of the outer loop that regulates the dc bus voltage. The proposed shunt active filter model uses balanced linear and non-linear load works successfully lowers the THD within IEEE norms and satisfactorily works to compensate current harmonics. The model is made in MATLAB SIMULINK and successfully reduces the harmonic in the source current. Mr. Amit Kumar Rajan | Dr. E Vijay Kumar"The Shunt Active Power Filter to Compensate Reactive Power and Harmonics with optimized PI controller in a 3 Phase 3 Wire Distribution System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18196.pdf http://www.ijtsrd.com/engineering/electrical-engineering/18196/the-shunt-active-power-filter-to-compensate-reactive-power-and-harmonics-with-optimized-pi-controller-in-a-3-phase-3-wire-distribution-system/mr-amit-kumar-rajan
Enhancement of power quality in distribution system using d statcom
1) The document discusses a project to enhance power quality in a distribution system using a D-STATCOM. It describes common power quality problems like voltage sags, harmonic distortion, and low power factor.
2) It then provides details on the components and operation of a D-STATCOM, which contains a voltage source converter, controller, energy storage circuit, and LCL passive filter.
3) The methodology section describes creating a test system model in Simulink to simulate different fault cases both with and without a D-STATCOM, and with or without the LCL filter. The results demonstrate that a D-STATCOM can mitigate voltage sags and power factors can be increased closer to unity when also
Enhancement of power quality in distribution system using d statcom
1) The document discusses a project to enhance power quality in a distribution system using a D-STATCOM. It describes common power quality problems like voltage sags, harmonic distortion, and low power factor.
2) It provides details on the components and operation of a D-STATCOM, which contains a voltage source converter, controller, energy storage circuit, and LCL passive filter.
3) The methodology section describes simulating different fault scenarios in a test system both with and without a D-STATCOM and with or without the LCL filter. The results demonstrate that a D-STATCOM can mitigate voltage sags and an LCL filter reduces harmonic distortion.
An Approach of D-STATCOM in Single Phase System with Power Quality Improvement
The paper describes the design of D-STATCOM in single phase for voltage interruption mitigation of fault in an unbalance system. Speed of response is higher than static var compensator (SVC) and harmonic emission is less than SVC that is why D-STATCOM is used in place of static var compensator. It validates the performance of D-STATCOM for improving power quality and harmonics. It provides a guide for utilities to have an appropriate choice of FACTS devices for enhancing stability. The work proposes a two pulse STATCOM configurations in which voltage source inverter uses IGBT as a switching device have been simulated using MATLAB/SIMULINK. Accordingly, simulation is first carried out to illustrate use of D-STATCOM in mitigating voltage interruption in single phase. The scope of the paper is to explore the D-STATCOM in single phase. Normally, D-STATCOM is not used in single phase, so an attempt has been made to introduce DSTATCOM in single phase load or household applications. Simulation results of 3KVAR D-STATCOM validate that integrated D-STATCOM with 230V, 91μF capacitor is suited for single phase system with voltage interruption mitigation capacit
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Improved Power Quality by using STATCOM Under Various Loading Conditions
This document discusses improving power quality using a STATCOM under various loading conditions. It first provides background on power quality issues and defines STATCOM. It then describes the system topology which includes a wind energy generation system connected to the grid along with a STATCOM and battery energy storage system. Two control schemes for the STATCOM are proposed: Bang-Bang current control and fuzzy logic control. Simulation results using MATLAB/Simulink are presented for various cases including balanced/unbalanced linear and non-linear loads, showing the STATCOM is able to mitigate power quality issues and regulate voltage.
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The document is an abstract from the International Journal of Electrical Engineering and Technology discussing load reactive power compensation using a Unified Power Quality Conditioner (UPQC) with power angle control of the voltage-sourced converters. It introduces a new concept of using the UPQC's series inverter to simultaneously compensate for voltage sags/swells and share the reactive power load with the shunt inverter. The power angle control approach coordinates the reactive power between the two inverters. Mathematical analysis is presented to extend power angle control for this application. Simulation and experimental results validate the proposed control concept.
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This document discusses using a D-STATCOM (Distribution Static Synchronous Compensator) to improve power quality and voltage regulation in a photovoltaic (PV) distribution system. The objectives are to analyze the effects of nonlinear loads, study existing harmonics mitigation methods, and propose a best method for compensating reactive power and mitigating current harmonics. It presents the contents, introduces issues like harmonics from power electronic devices and reactive power disturbances. It then describes the operation, topology and components of a D-STATCOM and PV system. MATLAB models of the grid-connected PV system with and without D-STATCOM are presented, showing the D-STATCOM improves power factor and regulates the voltage.Y04408126132
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.
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This document presents a control scheme for a D-STATCOM (distribution static compensator) to compensate for power factor and harmonic current in an electric power distribution system. It begins by introducing D-STATCOM technology and its role in providing reactive power support and voltage regulation on distribution feeders. It then describes the proposed control scheme, which is based on instantaneous power theory and aims to make the source current purely sinusoidal with unity power factor. Simulation results are presented comparing the proposed control scheme to an existing one, showing the new scheme achieves unity power factor compensation after a load is switched on.
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This document summarizes a research paper about using a Z-Source Inverter (ZSI) based STATCOM to enhance power quality in a thirty bus power system. It first provides background on power quality issues and how Flexible AC Transmission Systems (FACTS) devices like STATCOMs can help address them. It then describes the components and operation of a conventional STATCOM and introduces the ZSI as an alternative inverter topology. The research presented in the paper models and simulates a thirty bus system both with and without a ZSI-based STATCOM to study improvements in voltage regulation and reactive power compensation.
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Distribution Static Synchronous Compensator (DSTATCOM) is a shunt compensating device which is used
to improve current profile by exchanging of reactive power with unbalanced and nonlinear load. DSTATCOM is a
shunt compensating device used for power quality improvement in distribution systems. Relevant solutions are
applied for harmonics, fluctuation of voltage, voltage deviation, unbalance of three phase voltage and current and
frequency deviation. Different controlling schemes such as Phase Control Method (PCM), Fryze Power Theory
(FPT), Synchronous Reference Frame Theory (SRFT) and Instantaneous Reactive Power Theory (IRPT) are used
for reactive power compensation with the help of Voltage source Inverter (VSI). In this project we are going to
balance the source current using different control schemes. The results of different source currents are compared
with a different control schemes in terms of active and reactive power and in terms of Total Harmonic Distortion
(THD) for nonlinear load using Fryze Power Theory (FPT) and Instantaneous Reactive Power Theory (IRPT).
Reference currents are generated by the different control schemes have been dynamically traced in a hysteresis
current controller. The performance of DSTATCOM for different control schemes is validated for load balancing
and harmonic elimination by using simulation models in MATLAB/SIMULINKThe Shunt Active Power Filter to Compensate Reactive Power and Harmonics with...
In this paper is to study the denomination Power quality and large refers to maintaining a proximal sinusoidal power distribution bus voltage at rated magnitude and frequency. This is mainly affected by the generation of harmonics. Even though electronic and non-linear devices are flexible, economical and energy efficient, they may degrade power quality by creating harmonic currents and consuming excessive reactive power. This paper shows the method of improving the power quality using shunt active power filter with proposed optimized PI. The proposed topic comprises of PI controller, filter hysteresis current control loop, dc link capacitor. The switching signal generation for filter is from hysteresis current controller techniques. With the all these element shunt active power filter reduce the total harmonic distortion. Its source current, compensating current and THD values are studied, then PI control strategy is applied then the differences in THD are compared. The PI feedback compensation design starts with the small signal system' transfer function. Then an optimum constant of PI for a Shunt-APF is proposed and implemented to enhance its response to compensation of harmonics of linear and non-linear loads. The obtained results have demonstrated the ability to compensate the current harmonics effectively under distorted source conditions. The fluctuation in the dc bus voltage of the filter depends on the compensation speed of the outer loop that regulates the dc bus voltage. The proposed shunt active filter model uses balanced linear and non-linear load works successfully lowers the THD within IEEE norms and satisfactorily works to compensate current harmonics. The model is made in MATLAB SIMULINK and successfully reduces the harmonic in the source current. Mr. Amit Kumar Rajan | Dr. E Vijay Kumar"The Shunt Active Power Filter to Compensate Reactive Power and Harmonics with optimized PI controller in a 3 Phase 3 Wire Distribution System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18196.pdf http://www.ijtsrd.com/engineering/electrical-engineering/18196/the-shunt-active-power-filter-to-compensate-reactive-power-and-harmonics-with-optimized-pi-controller-in-a-3-phase-3-wire-distribution-system/mr-amit-kumar-rajan
Enhancement of power quality in distribution system using d statcom
1) The document discusses a project to enhance power quality in a distribution system using a D-STATCOM. It describes common power quality problems like voltage sags, harmonic distortion, and low power factor.
2) It then provides details on the components and operation of a D-STATCOM, which contains a voltage source converter, controller, energy storage circuit, and LCL passive filter.
3) The methodology section describes creating a test system model in Simulink to simulate different fault cases both with and without a D-STATCOM, and with or without the LCL filter. The results demonstrate that a D-STATCOM can mitigate voltage sags and power factors can be increased closer to unity when also
Enhancement of power quality in distribution system using d statcom
1) The document discusses a project to enhance power quality in a distribution system using a D-STATCOM. It describes common power quality problems like voltage sags, harmonic distortion, and low power factor.
2) It provides details on the components and operation of a D-STATCOM, which contains a voltage source converter, controller, energy storage circuit, and LCL passive filter.
3) The methodology section describes simulating different fault scenarios in a test system both with and without a D-STATCOM and with or without the LCL filter. The results demonstrate that a D-STATCOM can mitigate voltage sags and an LCL filter reduces harmonic distortion.
An Approach of D-STATCOM in Single Phase System with Power Quality Improvement
The paper describes the design of D-STATCOM in single phase for voltage interruption mitigation of fault in an unbalance system. Speed of response is higher than static var compensator (SVC) and harmonic emission is less than SVC that is why D-STATCOM is used in place of static var compensator. It validates the performance of D-STATCOM for improving power quality and harmonics. It provides a guide for utilities to have an appropriate choice of FACTS devices for enhancing stability. The work proposes a two pulse STATCOM configurations in which voltage source inverter uses IGBT as a switching device have been simulated using MATLAB/SIMULINK. Accordingly, simulation is first carried out to illustrate use of D-STATCOM in mitigating voltage interruption in single phase. The scope of the paper is to explore the D-STATCOM in single phase. Normally, D-STATCOM is not used in single phase, so an attempt has been made to introduce DSTATCOM in single phase load or household applications. Simulation results of 3KVAR D-STATCOM validate that integrated D-STATCOM with 230V, 91μF capacitor is suited for single phase system with voltage interruption mitigation capacit
IRJET- Review on Various Topologis used for Decoupling of Fluctuating Power i...
This document reviews various topologies used for decoupling fluctuating power in single-phase AC circuits. It discusses how active power decoupling techniques can help mitigate issues caused by power fluctuations, such as distorted power factor correction and reduced maximum power point tracking efficiency in applications like solar inverters. Specifically, it analyzes a symmetrical half-bridge circuit topology that uses minimal passive components to absorb power surges. The document also reviews several past studies on active power decoupling methods, capacitive energy storage approaches, and the benefits of film capacitors over electrolytic capacitors for power decoupling applications.
Improved Power Quality by using STATCOM Under Various Loading Conditions
This document discusses improving power quality using a STATCOM under various loading conditions. It first provides background on power quality issues and defines STATCOM. It then describes the system topology which includes a wind energy generation system connected to the grid along with a STATCOM and battery energy storage system. Two control schemes for the STATCOM are proposed: Bang-Bang current control and fuzzy logic control. Simulation results using MATLAB/Simulink are presented for various cases including balanced/unbalanced linear and non-linear loads, showing the STATCOM is able to mitigate power quality issues and regulate voltage.
Power Quality Improvement by UPQC based on Voltage Source Converters
In modern power system consists of wide range of electrical, electronic and power electronic equipment in commercial and industrial applications. Since most of the electronic equipment’s are nonlinear in nature these will induce harmonics in the system, which affect the sensitive loads to be fed from the system. These problems are partially solved with the help of LC passive filters. However, this kind of filter cannot solve random variation in the load current wave form and voltage wave form. Active filters can resolve this problem. However, the cost of active filters is high. They are difficult to implement in large scale. Additionally, they also present lower efficiency than shunt passive filters. One of the many solutions is the use of a combined system of shunt and active series filters like Unified Power Quality Conditioner (UPQC) which aims at achieving a low cost under highly effective control. The UPQC device combines a shunt active filter together with a series active filter in a back-to-back configuration, to simultaneously compensate the supply voltage and the load current or to mitigate any type of voltage and current fluctuations and power factor correction in a power distribution network, such that improved power quality can be made available at the point of common coupling. The control strategies are modeled using MATLAB/SIMULINK. The performance is also observed under influence of utility side disturbances such as harmonics and voltage sags. The simulation results are compared without and with UPQC for the verification of results.
40220130406009 2
The document is an abstract from the International Journal of Electrical Engineering and Technology discussing load reactive power compensation using a Unified Power Quality Conditioner (UPQC) with power angle control of the voltage-sourced converters. It introduces a new concept of using the UPQC's series inverter to simultaneously compensate for voltage sags/swells and share the reactive power load with the shunt inverter. The power angle control approach coordinates the reactive power between the two inverters. Mathematical analysis is presented to extend power angle control for this application. Simulation and experimental results validate the proposed control concept.
POWER QUALITY IMPROVEMENT IN A PV DISTRIBUTION SYSTEM BY USING D-STATCOM
POWER QUALITY IMPROVEMENT IN A PV DISTRIBUTION SYSTEM BY USING D-STATCOMpechetti surya venkata subrahmanyam
This document discusses using a D-STATCOM (Distribution Static Synchronous Compensator) to improve power quality and voltage regulation in a photovoltaic (PV) distribution system. The objectives are to analyze the effects of nonlinear loads, study existing harmonics mitigation methods, and propose a best method for compensating reactive power and mitigating current harmonics. It presents the contents, introduces issues like harmonics from power electronic devices and reactive power disturbances. It then describes the operation, topology and components of a D-STATCOM and PV system. MATLAB models of the grid-connected PV system with and without D-STATCOM are presented, showing the D-STATCOM improves power factor and regulates the voltage.Y04408126132
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.
G046033742
This document presents a control scheme for a D-STATCOM (distribution static compensator) to compensate for power factor and harmonic current in an electric power distribution system. It begins by introducing D-STATCOM technology and its role in providing reactive power support and voltage regulation on distribution feeders. It then describes the proposed control scheme, which is based on instantaneous power theory and aims to make the source current purely sinusoidal with unity power factor. Simulation results are presented comparing the proposed control scheme to an existing one, showing the new scheme achieves unity power factor compensation after a load is switched on.
IRJET- Enhancement of Power Flow Capability in Power System using UPFC- A RevieW
This document reviews the use of a Unified Power Flow Controller (UPFC) to enhance power flow capability in power systems. The UPFC is a flexible AC transmission system (FACTS) device that can control both real and reactive power flows on a transmission line. It consists of two voltage source converters connected by a DC link: a static synchronous compensator (STATCOM) and a static synchronous series compensator (SSSC). The STATCOM controls reactive power and the DC link voltage, while the SSSC injects a controlled AC voltage in series with the transmission line to vary the transmission line impedance and power flow. Simulation results show that a UPFC installed on the IEEE 5 bus test system can control power flows and
IRJET - Hybrid Renewable Energy Sources for Power Quality Improvement with In...
This document discusses hybrid renewable energy sources and power quality improvement using an intelligent controller. It proposes using a hybrid system of renewable energy sources along with a shunt active power filter (APF) controlled by an intelligent controller to improve power quality issues like harmonics. The APF compensates for harmonic current in the system. The document provides details on the various components involved like the choke, linear and non-linear loads, three-phase voltage and current measurement, bridge amplifier, hysteresis control, and power quality (PQ) theory. It also discusses control strategies for the shunt APF like synchronous detection and instantaneous power (p-q) theory methods.
Active power electronic transformer a standard building block for smart grid
1) Active power electronic transformers (APETs) use power electronics to increase transformer frequency, reducing size while providing voltage transformation, isolation, and power quality improvements.
2) A three-stage topology is promising for realizing an APET, with controllable AC/DC and DC/AC stages and an isolation DC/DC stage using a high-frequency transformer.
3) APETs can have multiple roles in smart grids as standard building blocks in complex systems, with the goal of developing a symmetrical base module with a 1:1 transfer ratio to ensure power quality on the grid side.
Harmonics analysis of single phase inverter
This document summarizes a project report on harmonic analysis of a single phase inverter with pulse width modulation (PWM). It includes the simulation of simple and practical inverter models in MATLAB. The output waveforms and harmonic analysis using FFT are presented. The hardware configuration of a single phase inverter circuit is described along with the future work of improving system stability and analyzing harmonics in three phase inverters.
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STATCOM.pptx
- 1. SINHGAD INSTITUTE OF TECHNOLOGY LONAVALA DEPARTMENT OF ELECTRICAL ENGINEERING a presentation on STATCOM
- 2. presented by S A M E E P G A M I T T E E L E C T R I C A L R O L L N O 4 1 guided by M r. V. P M u l e D E P A R T M E N T O F E L E C T R I C A L E N G G .
- 3. CONTENTS Introduction Literature Review Objectives Methodology Advantages & Disadvantages Conclusion Reference
- 4. INTRODUCTION This s a small note discussing about one of compensators that is mostly used in power system for improving quality of power transmitted form source to load. here in this paper its concentrated on the very basic of this compensator telling answer for why? What? When? How? etc.. As an electrical engineer in our day to day life we are dealing with real and reactive power which can determine the quality of power transmitted from source to load.
- 5. Literature Review static synchronous compensator, is a regulating device used on ac current electricity transmission networks. It is based on a power electronics voltage source converter and can act as either a source or sink of reactive AC power to an electricity network. If connected to a source of power it can also provide active AC power It is a member of the FACTS family of devices.
- 7. Components of STATCOM Voltage-Source Converter (VSC) DC Capacitor Inductive Reactance (X) Harmonic Filters
- 8. DESIGN OF STATCOM GTO Based STATCOME
- 10. What Is GTO? A gate turn-off thyristor (GTO) is a special type of thyristor, which is a high-power semiconductor device. It was invented at General Electric. GTOs, as opposed to normal thyristors are fully controllable switches which can be turned on and off by their third lead, the GATE lead.
- 11. SYMBOLS
- 12. Advantage s Continuous and dynamic Voltage Control High efficiency Very fast response time Single phase control for unbalanced load Reactive power compensation
- 13. REFERANCE C. L. Wadhwa, Electrical Power Systems, New Age International Publishers, 2009 Hadi Saadat, Power System Analysis, WCB McGraw Hill, 1999. Narain Hingorani & L. Gyugi, Understanding FACTS, Concepts and Technology of Flexible AC Transmission Systems, IEEE Press, 2000. Zhiping Yang, Chen Shen, Mariesa L. Crow, Lingli Zhang, An Improved STATCOM Model for Power Flow Analysis, University of Missouri, 2000. W.D. Stevenson, Elements of Power System Analysis, McGrawHill, 1975.
- 14. Thank You