Space Vector Modulated Hybrid Series Active Filter for Harmonic Compensation

Abstract

This paper deals with the implementation of Hybrid Series Active Power Filter (HSAPF) for compensation of harmonic voltage and current using Space Vector Pulse Width Modulation (SVPWM) technique. The Hybrid control approach based Synchronous Reference Frame(SRF) method is used to generate the appropriate reference voltages for HSAPF to compensate reactive power. This HSAPF uses PI control to the outer DC-link voltage control loop and SVPWM to the inner voltage control loop. The switching pattern for the switching of the inverter of series active power filter in HSAPF is generated using SVPWM technique. The proposed HSAPF is verified through MATLAB Simulink version R2010 for SRF control strategy and SVPWM technique. The simulated results verified that for both SRF-SVPWM based HSAPF and Synchronous Reference Frame with Carrier Based Pulse Width Modulation (SRF-CBPWM) based HSAPF shows that the Total Harmonic Distortion (THD) of source current for steady state as well as dynamic condition of non-linear load follows the IEEE Std.519-1992.