A PLANNING STRATEGY FOR REACTIVE POWER IN POWER TRANSMISSION NETWORK USING SOFT COMPUTING TECHNIQUES

2020 ◽  
Vol 40 (3) ◽  
Author(s):  
Biplab Bhattacharyya ◽  
Nihar Karmakar
Keyword(s):  
Soft Computing ◽  
Reactive Power ◽  
Power Transmission ◽  
Transmission Network ◽  
Planning Strategy ◽  
Soft Computing Techniques

scholarly journals Hybrid intelligence approach for multi-load level reactive power planning using VAR compensator in power transmission network

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Nihar Karmakar ◽  
Biplab Bhattacharyya
Keyword(s):  
Soft Computing ◽  
Reactive Power ◽  
Power Transmission ◽  
Optimal Parameter ◽  
Operating Cost ◽  
Research Work ◽  
Planning Problem ◽  
Power Sources ◽  
Soft Computing Techniques ◽  
Reactive Power Planning

AbstractThis paper formulates and solves a techno-economic planning problem of reactive power (VAR) in power transmission systems under loadings. The objective of the proposed research work is to minimize the combination of installation cost of reactive power sources, power losses and operational cost while satisfying technical constraints. Initially, the positions for the placement of reactive power sources are determined technically. Different cost components such as VAR generation cost, line charging cost etc. are then added in the total operating cost in a most economical way. Finally, the optimal parameter setting subjected to reactive power planning (RPP) is obtained by taking advantages of hybrid soft computing techniques. For the justification of the efficiency and efficacy of the proposed approach the entire work is simulated on two inter-regional transmission networks. To validate the robustness and ease of the soft computing techniques in RPP the responses of benchmark functions and statistical proof are provided simultaneously.

scholarly journals STATCOM’s contribution to the improvement of voltage plan and power flow in an electrical transmission network

2018 ◽  
Vol 8 (1) ◽  
pp. 41-52
Author(s):  
Adel Amiar ◽  
Mohamed Adjabi
Keyword(s):  
Power Flow ◽  
Reactive Power ◽  
Power Transmission ◽  
Dynamic Performance ◽  
Voltage Regulation ◽  
Transmission Network ◽  
Electrical Transmission ◽  
Transmission Systems ◽  
Power Transmission Systems ◽  
Flexible Alternating Current Transmission

Flexible alternating current transmission systems are used since nearly four decades and present very good dynamic performances. The purpose of this work is to study the behaviour of a system where static compensator (STATCOM) is located at the midpoint of a long transmission line functioning in disturbed modes with various levels of load caused by tripping and then, reclosing of the incoming station breaker. The studied model and starting from the analysis of various alternatives will lead to the checking of the aptitude of the STATCOM to maintain the voltage plan and to improve the power flow in electro-energetic system which is the east region of Algerian 400 kV transmission network. The steady state performance of STATCOM’s controller is analysed through computer simulations with MATLAB/Simulink program. The simulation results have demonstrated that STATCOM can be effectively applied in power transmission systems to solve the problems of poor dynamic performance and voltage regulation.   Keywords: STATCOM, reactive power, power flow, voltage plan, breaker automatic recloser.

scholarly journals Application of Posicast controller with SVC in wind-diesel hybrid power system model

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Pabitra Kumar Guchhait ◽  
Abhik Banerjee ◽  
V. Mukherjee
Keyword(s):  
Power System ◽  
Soft Computing ◽  
Hybrid Model ◽  
Reactive Power ◽  
Reference Signal ◽  
Voltage Response ◽  
Hybrid Power System ◽  
Model Stability ◽  
Hybrid Power ◽  
Soft Computing Techniques

AbstractPosicast controller is used to damp out oscillations of power system by changing excitation of the reference signal. The main purpose of this controller is to reduce the overshoot and the rising time of the transient voltage response of power system. In the present work, Posicast controller and static VAR controller (SVC) have been used to enhance the stability under any form of small disturbance of a wind-diesel hybrid power system (WDHPS) model. Stability of the hybrid model is, mainly, affected by the active and the reactive power unbalance. In this paper, reactive power unbalance has been carried out and it may be handled by using these two controllers. In the studied WDHPS model, a power system stabilizer (mainly, PSS3B) is also included along with the Posicast with SVC controller and performance of the hybrid model is investigated with the help of different soft computing techniques. Soft computing techniques are, basically, used to adjust the different parameters of the studied WDHPS based model for smooth and healthy operations of the hybrid model. The employed technique establishes better performance of the studied WDHPS based model in terms of superior dynamic reactive power compensation offered in real-time.

scholarly journals Voltage Compensation In Wind Power System Using STATCOM Controlled By Soft Computing Techniques

2017 ◽  
Vol 7 (2) ◽  
pp. 667
Author(s):  
Bineeta Mukhopadhyay ◽  
Rajib Kumar Mandal ◽  
Girish Kumar Choudhary
Keyword(s):  
Soft Computing ◽  
Reactive Power ◽  
Wind Farms ◽  
Performance Comparison ◽  
Simultaneous Occurrence ◽  
Double Line ◽  
Voltage Compensation ◽  
Soft Computing Techniques ◽  
Point Of Common Coupling ◽  
Common Coupling

<span lang="EN-US">When severe voltage sags occur in weak power systems associated with grid-connected wind farms employing doubly fed induction generators, voltage instability occurs which may lead to forced disconnection of wind turbine. Shunt flexible AC transmission system devices like static synchronous compensator (STATCOM) may be harnessed to provide voltage support by dynamic injection of reactive power. In this work, the STATCOM provided voltage compensation at the point of common coupling in five test cases, namely, simultaneous occurrence of step change (drop) in wind speed and dip in grid voltage, single line to ground, line to line, double line to ground faults and sudden increment in load by more than a thousand times. Three techniques were employed to control the STATCOM, namely, fuzzy logic, particle swarm optimization and a combination of both. A performance comparison was made among the three soft computing techniques used to control the STATCOM on the basis of the amount of voltage compensation offered at the point of common coupling. The simulations were done with the help of SimPowerSystems available with MATLAB / SIMULINK and the results validated that the STATCOM controlled by all the three techniques offered voltage compensation in all the cases considered.</span>

scholarly journals Impact of static reactive power compensator (SVC) on the power grid

2020 ◽  
Vol 11 ◽  
pp. 96-104
Author(s):  
Abdelkader Rahmouni
Keyword(s):  
Control System ◽  
Electric Power ◽  
Reactive Power ◽  
Power Transmission ◽  
Voltage Regulation ◽  
Electrical Network ◽  
Transmission Network ◽  
Electrical Networks ◽  
Current Transmission ◽  
Reactive Power Compensator

The work presented in this paper is a contribution to the problem of controlling the reactive powers and the voltages in an electrical network. Among these control tools, the static reactive power compensator (SVC) has been chosen because of its simplicity of control. The SVC is among the FACTS 'Alternative Flexible Current Transmission Systems' devices that help to deal with problems encountered in the operation of electrical networks either in the distribution side or in the transport side. In this work, the SVC is used to control the reactive power and the voltage in an electric power transmission network. In order to improve its efficiency, three voltage regulation systems have been chosen in the control system of this compensator.

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