Performance Evaluation of Different Fuzzy Logic Controllers for E-STATCOM

Abstract: This paper investigates the performance of three different Fuzzy Logic Controllers (FLCs) for an Enhanced Static Synchronous Compensator (E-STATCOM) for reactive power compensation and voltage stability improvement in power systems. The E-STATCOM is a key device in modern power system, ensuring efficient power flow and dynamic voltage regulation. Traditional control methods like Proportional and Integral (PI) Controllers often face drawbacks like inadaptability and robustness under varying load conditions. To address these challenges, three distinct FLCs are implemented and their transient response is compared. The study assess the controllers' effectiveness in dynamic response. Simulation results, conducted in MATLAB/Simulink, demonstrate that fuzzy logic controller designed with a smaller number of membership functions can provide better transient response. This comparative analysis highlights the potential of intelligent control strategies in enhancing E-STATCOM performance