Simulation and Design of SRF based Control Algorithm for Three Phase Shunt Active Power Filter

Abstract — Active power filters are effective in mitigating line current harmonics and compensating for the reactive power in the line. There are basically two types of Active Power Filters (APFs): shunt type and series type. Shunt active power filters (SAPFs) represent the most important and most widely used filters in industrial purposes, this is due not only to the fact that eliminate the harmonic current but also they are suitable for a wide range of power ratings. In this paper, Synchronous Reference Frame (SRF) theory is employed to calculate compensating currents while the three phase source is feeding a highly non-linear load. The main objective is to study and investigate the performance of Shunt active power filter using SRF theory. The algorithm is simulated under MATLAB 7.8 environment using Simulinkand SimPowerSystems toolbox. The results shown are within the IEEE Standard 512-1992