Wavelet Transformation Based Current Harmonic Mitigation

Abstract

The power Electronic circuits and other non linear elements produce harmonics in the source. Harmonics results in power quality problem and reduction of system stability. A new approach to reduce current harmonics by Wavelet Transform based Single Phase Shunt Active Filter is proposed. The Wavelet Transform is used for extracting reference current from the distorted source current for the filter. The simulation results show that the proposed model is valid and stable for non linear loads.