A fuzzy logic controller based static synchronous compensator

This paper presents three phase Static Synchronous Compensator system using Fuzzy logic controller. STATCOM is a Shunt device which is capable of exchanging both real and reactive power. A novel voltage control based on P-Q theory using fuzzy logic controller has been designed for the STATCOM system. MATLAB simulation can be used to analyze the performance of STATCOM using PI controller as well as Fuzzy logic controller. The difficulty regarding the PI controller gain is the fine tuning of the controller so as to achieve the optimal operation of the task. The major drawback of the PI controller is faced when the process is nonlinear and also when the system is having oscillations. From the results obtained Total Harmonic Distortion (THD) for STATCOM using Fuzzy logic controller is reduced.