A three-phase active power filter implemented with multiples single-phase inverter modules in series

Abstract

An active power filter implemented with multiple single-phase full bridge voltage source inverters is presented and analyzed in this paper. The proposed active power filter is aimed to compensate displacement power factor and current harmonic components in high voltage power distribution systems. A control scheme is developed to allow the operation of the inverter modules at different voltages and switching frequencies. Simulated waveforms for steady state and transient operating conditions shows the compensation characteristics of the proposed topology.