Harmonic mitigation in interphase power controller using passive filter-based phase shifting transformer

A novel, genetic-algorithm based, design method of the passive filter-based phase shifting transformers is presented. The method improves the reliability, effectiveness, and accuracy of the filter. The filter is employed in an interphase power controller (IPC), a FACTS device unique in its power-transmitting properties. The paper demonstrates how the implementation of the proposed filter in the IPC structure significantly reduces the total harmonic distortion without affecting the IPC characteristics.