DEVELOPMENT OF 3 PHASE 3 WIRE SHUNT ACTIVE POWER FILTER FOR HARMONIC REDUCTION

Abstract

This paper shows the method of improving the power quality as well as power factor using shunt active power filter in the power system, which is caused by nonlinear loads. The Shunt Active Power Filter (SAPF) injects a suitable compensating current at a point of common coupling (PCC) so that the harmonics present in the line are cancelled out and the sinusoidal nature of voltage and current waveforms are restored. The proposed method consist of Bang Bang current control for reference current generation and Hysteresis band current control (HBCC) technique for the generation of firing pulses to the inverter. This system is simulated using MATLAB/Simulink and the results are presented.