Fuzzy based Fault Tolerant shunt Active Power Filter

Abstract

Active Power Filters are developed for compensating the harmonics, reactive power simultaneously. The performance of shunt Active Power Filter depends on the two factors i.e., type of the controller and methods used to obtain the reference current. Generally, the type of controller used in most of the Active Power Filters is traditional PI controller or Fuzzy Logic Controller. Recently, Fault Tolerant Shunt Active Power Filter was proposed using PI controller with redundancy method to guarantee reliability of Active Power Filters. However in this study, we propose a Fault tolerant Shunt Active Power Filter using Fuzzy Logic Controller instead of PI controller to achieve better performance in terms of Total Harmonic Distortion. Simulation results are obtained using MATLAB/SIMULINK for Fuzzy based Fault tolerant Shunt Active Power Filter in presence of open / short circuit fault and shown better results in comparison with Fault Tolerant Shunt Active Filter using PI controller.