IRJET- Analysis of Load Frequency Control for a Distributed Grid System Involving Wind, Hydro and Thermal Power Plants using Conventional and Fuzzy Logic Controller
This document analyzes load frequency control for a distributed grid system involving wind, hydro, and thermal power plants using conventional and fuzzy logic controllers. It models a three-area system with area 1 containing a thermal plant, area 2 containing a hydro plant, and area 3 containing wind generation. It simulates the system responses to a 1% load disturbance in one area using each controller and compares the undershoot and settling time. The fuzzy logic controller provides better dynamic response with lower undershoot, overshoot, and faster settling time compared to the conventional PI controller. This shows fuzzy logic control is more effective at maintaining frequency stability in an interconnected power system with various generation sources.
Effects of the Droop Speed Governor and Automatic Generation Control AGC on G...IJAPEJOURNAL
In power system, as any inequality between production and consumption results in an instantaneous change in frequency from nominal, frequency should be always monitored and controlled. Traditionally, frequency regulation is provided by varying the power output of generators which have restricted ramp rates. The Automatic Generation Control AGC process performs the task of adjusting system generation to meet the load demand and of regulating the large system frequency changes. A result of the mismatches between system load and system generation, system frequency and the desired value of 50 Hz is the accumulation of time error. How equilibrium system frequency is calculated if load parameters are frequency dependent, and how can frequency be controlled. Also, how do parameters of a speed governor affect generated power. The transient processes before system frequency settles down to steady state. Finally, AGC in what way is it different from governor action. This paper presents new approaches for AGC of power system including two areas having one steam turbines and one hydro turbine tied together through power lines.
Improving Frequency Stabilization in Power System Network using Optimization ...ijtsrd
The new concept of Integrated Power Network Controls transcending Generation, transmission, Distribution and even Local Consumption, have been found to leverage on the reliability of the composite system unit controls if the robustness of the entire system to faults and interruptions would be optimized. This paper presents an improvement to frequency stabilization in power system network by developing an optimization network - the controller network or the optimization network controller using matlab code adjuster to get the desired stable frequency of 50Hz. The optimization network thus implements a widely acceptable and a global control scheme applicable to varied environments and situations. Aguodoh Patrick C. | Udeani Henrietta U."Improving Frequency Stabilization in Power System Network using Optimization Method" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd7017.pdf http://www.ijtsrd.com/engineering/computer-engineering/7017/improving-frequency-stabilization-in-power-system--network-using-optimization-method/aguodoh--patrick-c
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.
Automatic power generation control structure for smart electrical power gridseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Optimal fuzzy-PID controller with derivative filter for load frequency contro...IJECEIAES
A newly adopted optimization technique known as sine-cosine algorithm (SCA) is suggested in this research article to tune the gains of Fuzzy-PID controller along with a derivative filter (Fuzzy-PIDF) of a hybrid interconnected system for the Load Frequency Control (LFC). The scrutinized multi-generation system considers hydro, gas and thermal sources in all areas of the dual area power system integrated with UPFC (unified power flow controller) and SMES (Super-conducting magnetic energy storage) units. The preeminence of the offered Fuzzy-PIDF controller is recognized over Fuzzy-PID controller by comparing their dynamic performance indices concerning minimum undershoot, settling time and also peak overshoot. Finally, the sensitiveness and sturdiness of the recommended control method are proved by altering the parameters of the system from their nominal values and by the implementation of random loading in the system.
Effects of the Droop Speed Governor and Automatic Generation Control AGC on G...IJAPEJOURNAL
In power system, as any inequality between production and consumption results in an instantaneous change in frequency from nominal, frequency should be always monitored and controlled. Traditionally, frequency regulation is provided by varying the power output of generators which have restricted ramp rates. The Automatic Generation Control AGC process performs the task of adjusting system generation to meet the load demand and of regulating the large system frequency changes. A result of the mismatches between system load and system generation, system frequency and the desired value of 50 Hz is the accumulation of time error. How equilibrium system frequency is calculated if load parameters are frequency dependent, and how can frequency be controlled. Also, how do parameters of a speed governor affect generated power. The transient processes before system frequency settles down to steady state. Finally, AGC in what way is it different from governor action. This paper presents new approaches for AGC of power system including two areas having one steam turbines and one hydro turbine tied together through power lines.
Improving Frequency Stabilization in Power System Network using Optimization ...ijtsrd
The new concept of Integrated Power Network Controls transcending Generation, transmission, Distribution and even Local Consumption, have been found to leverage on the reliability of the composite system unit controls if the robustness of the entire system to faults and interruptions would be optimized. This paper presents an improvement to frequency stabilization in power system network by developing an optimization network - the controller network or the optimization network controller using matlab code adjuster to get the desired stable frequency of 50Hz. The optimization network thus implements a widely acceptable and a global control scheme applicable to varied environments and situations. Aguodoh Patrick C. | Udeani Henrietta U."Improving Frequency Stabilization in Power System Network using Optimization Method" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd7017.pdf http://www.ijtsrd.com/engineering/computer-engineering/7017/improving-frequency-stabilization-in-power-system--network-using-optimization-method/aguodoh--patrick-c
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.
Automatic power generation control structure for smart electrical power gridseSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Optimal fuzzy-PID controller with derivative filter for load frequency contro...IJECEIAES
A newly adopted optimization technique known as sine-cosine algorithm (SCA) is suggested in this research article to tune the gains of Fuzzy-PID controller along with a derivative filter (Fuzzy-PIDF) of a hybrid interconnected system for the Load Frequency Control (LFC). The scrutinized multi-generation system considers hydro, gas and thermal sources in all areas of the dual area power system integrated with UPFC (unified power flow controller) and SMES (Super-conducting magnetic energy storage) units. The preeminence of the offered Fuzzy-PIDF controller is recognized over Fuzzy-PID controller by comparing their dynamic performance indices concerning minimum undershoot, settling time and also peak overshoot. Finally, the sensitiveness and sturdiness of the recommended control method are proved by altering the parameters of the system from their nominal values and by the implementation of random loading in the system.
Massive Energy Saving Systems and Strategies at Equipment Level in the Highes...IJERA Editor
Reducing operational expenditures (OpEx) have become main concern for almost all communication service
providers in the world. Some practical ideas and techniques implemented in Grameenphone might be very
helpful for others who are fighting to survive or trying to be more profitable or going to provide new services-
3G /LTE/LTE-Aor want to contribute in climate change anywhere in the world. Some challenging techniques
and tactics are discussed here to reduce vast amount of energy consumptions from different equipment used in
the base station, access and transport network for cost reduction.
Class-20: These slides present the related standards and specifications for the smart grid. Details about each standards can be accessed from the reference book specified.
An approach for a multi-stage under-frequency based load shedding scheme for...IJECEIAES
The integration of load shedding schemes with mainstream protection in power system networks is vital. The traditional power system network incorporates different protection schemes to protect its components. Once the power network reaches its maximum limits, and the load demand continue to increase the whole system will experience power system instability. The system frequency usually drops due to the loss of substantial generation creating imbalance. The best method to recover the system from instability is by introducing an under-frequency load shedding (UFLS) scheme in parallel with the protection schemes. This paper proposed a new UFLS scheme used in power systems and industry to maintain stability. Three case studies were implemented in this paper. Multi-stage decisionmaking algorithms load shedding in the environment of the DIgSILENT power factory platform is developed. The proposed algorithm speeds-up the operation of the UFLS scheme. The load shedding algorithm of the proposed scheme is implemented as a systematic process to achieve stability of the power network which is exposed to different operating conditions. The flexibility of the proposed scheme is validated with the modified IEEE 39-bus New England model. The application of the proposed novel UFLS schemes will contribute further to the development of new types of engineers.
Load Frequency Control of Three Area Power System using Fuzzy Logic Controllerijtsrd
This paper proposes a method to determine the magnitude and location of load disturbances in multi area power systems via monitoring tie line power flows, implementing demand response regionally. In this work, proposes an intelligent coordination between secondary control and demand response through a supervisory fuzzy PI based coordinator. The simulations were performed in the environment of MATLAB SIMULINK. K. Sumanth Kumar | S. Thirumalaiah ""Load Frequency Control of Three Area Power System using Fuzzy Logic Controller"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020, URL: https://www.ijtsrd.com/papers/ijtsrd29823.pdf
Paper Url : https://www.ijtsrd.com/engineering/electrical-engineering/29823/load-frequency-control-of-three-area-power-system-using-fuzzy-logic-controller/k-sumanth-kumar
Abstract: Wind energy is becoming the most effective renewable energy source mainly because of the growing concerns over carbon emissions and uncertainties in fossil fuel supplies and the government policy impetus. The increasing penetration of wind power in distribution systems may significantly affect VAR compensation and max. Power tracking of the systems, particularly during wind turbine cut-in and cut-off disturbances.
A DFIG based wind turbine has an ability to generate maximum power with varying and adjustable speed, ability to control active and reactive power by the integration of electronic power converters, low power rating of cost converter components, and so on. This study presents an overview and literature survey over past few decades on the different problems associated due to penetration of WT-DFIG in the power system and control aspects of DFIG.
Grid fault Control Scheme for Peak Current Reduction in Photovoltaic Inverte...IJMER
In this paper presents a control scheme for grid interactive photovoltaic inverters to minimize
peak current during unbalanced voltage sag. Power quality of a photovoltaic (PV) inverter deteriorates due
to the presence of grid faults with voltage sag. In grid connected PV important feature is the ride-through
capability, which allows the device to remain connected to the grid during different types of grid
disturbances and avoid the need to disconnect. But during the voltage sag, the source should operate with
increasing converter currents to maintain the injection of the generated power in the system. This abnormal
operation may result in undesired system disconnections due to overcurrent during voltage sag. In this
paper discuss a control scheme provide, controller for a PV three-phase inverter that ensures minimum
peakvalues in the grid- injected currents during voltage sag
Adıgüzel Hydroelectric Power Plant’s Modelling and LoadFrequency Control by F...IJERA Editor
In this study, to realize the load-frequency control according to different loading statuses, modelling of dynamic
behaviour of the Adıgüzel Hydroelectric Power Plant (HEPP) was made by using the Matlab/Simulink program.
By establishing the dynamic model of 36MVA synchronous generator and other components in the system in a
manner reflecting its behaviour in the real system, performance of classical controller and self-adjusting fuzzy
logic controller in electro-hydraulic governor circuit was examined according to different load statuses. During
the simulation works carried out when both control systems closely watched in the fuzzy logic control system
according to different loads the frequency of load and the number of frequency have been observed to be stable
in short period of time and allowed tolerance limits.
Power quality is a concern for utility and grid operators due to a large penetration of intermittent and stochastic renewable power generation sources. One of the major concerns, when designing and controlling grid-feeding photovoltaic (PV) inverters is meeting the grid requirements. International grid requirements demand low-voltage ride-through (LVRT) capability and maintaining grid functionality during fault conditions. This paper presents a comprehensive review for several control techniques to assure the LVRT capability of grid-feeding converters as well as discussing their respective advantages and limitations in detail. Areas for further research are identified afterwards. Finally, the conclusion gives a brief summary and critique of the findings.
LOAD FREQUENCY CONTROL IN TWO AREA NETWORK INCLUDING DGIAEME Publication
Automatic Generation Control (AGC) is associate integral a part of Energy Management
System. This paper deals with the automatic generation control of interconnected multi area grid
network. The first purpose of the AGC is to balance the full system generation against system load
and losses so the specified frequency and power interchange with neighboring systems are
maintained. Any pair between generation and demand causes the system frequency to deviate from
regular worth. So high frequency deviation could result in system collapse. This necessitates
associate correct and quick acting controller to take care of constant nominal frequency. The
limitations of the conventional controls are slow and lack of efficiency in handling system nonlinearity.
This leads to develop a control technique for AGC. In this paper both conventional and
PI viz. Proportional Integral controller approach of automatic generation control has been
examined. PI based AGC has been used for all optimization purposes. System performance has
been evaluated at various disturbances such as, load disturbances, grid disturbances and both load
and grid disturbances. Various responses due to conventional and proposed PI based AGC
controllers have been compared at load disturbances, grid disturbances and both load and grid
disturbances.
Massive Energy Saving Systems and Strategies at Equipment Level in the Highes...IJERA Editor
Reducing operational expenditures (OpEx) have become main concern for almost all communication service
providers in the world. Some practical ideas and techniques implemented in Grameenphone might be very
helpful for others who are fighting to survive or trying to be more profitable or going to provide new services-
3G /LTE/LTE-Aor want to contribute in climate change anywhere in the world. Some challenging techniques
and tactics are discussed here to reduce vast amount of energy consumptions from different equipment used in
the base station, access and transport network for cost reduction.
Class-20: These slides present the related standards and specifications for the smart grid. Details about each standards can be accessed from the reference book specified.
An approach for a multi-stage under-frequency based load shedding scheme for...IJECEIAES
The integration of load shedding schemes with mainstream protection in power system networks is vital. The traditional power system network incorporates different protection schemes to protect its components. Once the power network reaches its maximum limits, and the load demand continue to increase the whole system will experience power system instability. The system frequency usually drops due to the loss of substantial generation creating imbalance. The best method to recover the system from instability is by introducing an under-frequency load shedding (UFLS) scheme in parallel with the protection schemes. This paper proposed a new UFLS scheme used in power systems and industry to maintain stability. Three case studies were implemented in this paper. Multi-stage decisionmaking algorithms load shedding in the environment of the DIgSILENT power factory platform is developed. The proposed algorithm speeds-up the operation of the UFLS scheme. The load shedding algorithm of the proposed scheme is implemented as a systematic process to achieve stability of the power network which is exposed to different operating conditions. The flexibility of the proposed scheme is validated with the modified IEEE 39-bus New England model. The application of the proposed novel UFLS schemes will contribute further to the development of new types of engineers.
Load Frequency Control of Three Area Power System using Fuzzy Logic Controllerijtsrd
This paper proposes a method to determine the magnitude and location of load disturbances in multi area power systems via monitoring tie line power flows, implementing demand response regionally. In this work, proposes an intelligent coordination between secondary control and demand response through a supervisory fuzzy PI based coordinator. The simulations were performed in the environment of MATLAB SIMULINK. K. Sumanth Kumar | S. Thirumalaiah ""Load Frequency Control of Three Area Power System using Fuzzy Logic Controller"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020, URL: https://www.ijtsrd.com/papers/ijtsrd29823.pdf
Paper Url : https://www.ijtsrd.com/engineering/electrical-engineering/29823/load-frequency-control-of-three-area-power-system-using-fuzzy-logic-controller/k-sumanth-kumar
Abstract: Wind energy is becoming the most effective renewable energy source mainly because of the growing concerns over carbon emissions and uncertainties in fossil fuel supplies and the government policy impetus. The increasing penetration of wind power in distribution systems may significantly affect VAR compensation and max. Power tracking of the systems, particularly during wind turbine cut-in and cut-off disturbances.
A DFIG based wind turbine has an ability to generate maximum power with varying and adjustable speed, ability to control active and reactive power by the integration of electronic power converters, low power rating of cost converter components, and so on. This study presents an overview and literature survey over past few decades on the different problems associated due to penetration of WT-DFIG in the power system and control aspects of DFIG.
Grid fault Control Scheme for Peak Current Reduction in Photovoltaic Inverte...IJMER
In this paper presents a control scheme for grid interactive photovoltaic inverters to minimize
peak current during unbalanced voltage sag. Power quality of a photovoltaic (PV) inverter deteriorates due
to the presence of grid faults with voltage sag. In grid connected PV important feature is the ride-through
capability, which allows the device to remain connected to the grid during different types of grid
disturbances and avoid the need to disconnect. But during the voltage sag, the source should operate with
increasing converter currents to maintain the injection of the generated power in the system. This abnormal
operation may result in undesired system disconnections due to overcurrent during voltage sag. In this
paper discuss a control scheme provide, controller for a PV three-phase inverter that ensures minimum
peakvalues in the grid- injected currents during voltage sag
Adıgüzel Hydroelectric Power Plant’s Modelling and LoadFrequency Control by F...IJERA Editor
In this study, to realize the load-frequency control according to different loading statuses, modelling of dynamic
behaviour of the Adıgüzel Hydroelectric Power Plant (HEPP) was made by using the Matlab/Simulink program.
By establishing the dynamic model of 36MVA synchronous generator and other components in the system in a
manner reflecting its behaviour in the real system, performance of classical controller and self-adjusting fuzzy
logic controller in electro-hydraulic governor circuit was examined according to different load statuses. During
the simulation works carried out when both control systems closely watched in the fuzzy logic control system
according to different loads the frequency of load and the number of frequency have been observed to be stable
in short period of time and allowed tolerance limits.
Power quality is a concern for utility and grid operators due to a large penetration of intermittent and stochastic renewable power generation sources. One of the major concerns, when designing and controlling grid-feeding photovoltaic (PV) inverters is meeting the grid requirements. International grid requirements demand low-voltage ride-through (LVRT) capability and maintaining grid functionality during fault conditions. This paper presents a comprehensive review for several control techniques to assure the LVRT capability of grid-feeding converters as well as discussing their respective advantages and limitations in detail. Areas for further research are identified afterwards. Finally, the conclusion gives a brief summary and critique of the findings.
IRJET- Application of Model Predictive Control in PV-STATCOM for Achieving Fa...
Similar to IRJET- Analysis of Load Frequency Control for a Distributed Grid System Involving Wind, Hydro and Thermal Power Plants using Conventional and Fuzzy Logic Controller
LOAD FREQUENCY CONTROL IN TWO AREA NETWORK INCLUDING DGIAEME Publication
Automatic Generation Control (AGC) is associate integral a part of Energy Management
System. This paper deals with the automatic generation control of interconnected multi area grid
network. The first purpose of the AGC is to balance the full system generation against system load
and losses so the specified frequency and power interchange with neighboring systems are
maintained. Any pair between generation and demand causes the system frequency to deviate from
regular worth. So high frequency deviation could result in system collapse. This necessitates
associate correct and quick acting controller to take care of constant nominal frequency. The
limitations of the conventional controls are slow and lack of efficiency in handling system nonlinearity.
This leads to develop a control technique for AGC. In this paper both conventional and
PI viz. Proportional Integral controller approach of automatic generation control has been
examined. PI based AGC has been used for all optimization purposes. System performance has
been evaluated at various disturbances such as, load disturbances, grid disturbances and both load
and grid disturbances. Various responses due to conventional and proposed PI based AGC
controllers have been compared at load disturbances, grid disturbances and both load and grid
disturbances.
Improved dynamic performances of multi area reheat thermal agc power systems ...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
PI and LQR controllers for Frequency Regulation including Wind GenerationIJECEIAES
The increasing use of renewable technologies such as wind turbines in power systems may require the contribution of these new sources into grid ancillary services, such as Load Frequency Control. Hence, this work dealt with the performance comparison of two traditional control structures, PI and LQR, for secondary regulation of Load Frequency Control with the participation of variable-speed wind turbines. For this purpose, the doubly-fed induction generator wind turbine was modeled with additional control loops for emulation of the inertial response of conventional machines for frequency regulation tasks. Performance of proposed strategies was verified through simulation in a benchmark adapted from the WSCC 3 machines 9-bus test system. Results showed overall superior performance for LQR controller, although requiring more strenuous control effort from conventional units than PI control.
Voltage Stability & Power Quality Assessment of Distributed Generation Based ...ijsrd.com
This paper demonstrated the power quality & voltage stability problems associated with the renewable based distribution generation systems and how the Flexible AC Transmission System (FACTS) device such as Static Synchronous Compensator (STATCOM) play an important role in Power Quality Improvement. First we simulated the wind farm system without STATCOM and after the system simulated with STATCOM. We use the MATLAB/Simulink software for Simulation.
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IRJET- Analysis of Load Frequency Control for a Distributed Grid System Involving Wind, Hydro and Thermal Power Plants using Conventional and Fuzzy Logic Controller