Performance analysis of Series Active Filter under non sinusoidal supply and non linear loading

Abstract

This paper presents a comparative analysis of performance of Series Active Filter (SAF) under different operating conditions such as non sinusoidal supply and non linear loading. Two control schemes like PI controller based Sinusoidal Pulse Width Modulation (SPWM) switching and hysteresis voltage controller based switching have been employed in the comparative study. The percentage total harmonic distortion of the compensated load voltage has been considered as a measure for comparison. It has been observed from the simulation results under various operating conditions that the performance of SAF with hysteresis voltage controller is better.