Improved Power Quality by Using Fuzzy Logic Controller Based D-Statcom in Distribution System

Abstract

Power Quality pollution at the Load end is in the form of Voltage/Current waveform distortion, long/short duration voltage variations and poor load power factor. Amongst the various distribution FACTS controllers, Distribution Static Compensator (D-STATCOM) is important shunt compensator which has the potential to solve any power quality problem faced by distribution system. It provides effective compensation to unbalanced and non-linear loads by injecting appropriate reactive power at the Point of common coupling (PCC). In this paper we have designed Fuzzy Logic controller based D-STATCOM to mitigate the harmonics due to non-linear loads. The proposed system is designed in MATLAB/simulink software and the performance of the system is analized.