Three-Phase For-Wire Shunt Active Filter With l]nbalanced loads

Abstract

The electrical power qual§ at low voltage alternative networks became a serious concern because of the increased use of nonlineæ loads and pollutants. This work is to improve the quatity of electric current in such networks. Four-Wire Shuot Active Filter is studied; deferent loads (balanced and unbalanced) are discussed. We propose to identiÿ harmonic and reactive currents at the base of Self-Truring-Filters, which proved very good filtering performance, either in tansient or steady stat€. The simulations demonstrate the importance of this work in harmonic filtering and reactive power compensation