Improvement of quality of power distribution system using matrix converter and active filter

This paper describes an improvement method of power quality for power distribution system using matrix converter. The matrix converter makes it possible to improve the power quality of the power distribution system by suppressing voltage fluctuation on the consumer side without transformers. However, as the matrix converter deals with single-phase load in the system, input current harmonics are generated. In this paper, we propose a method to reduce of input current harmonics by using Active Filter. In both case of unbalance load the effectiveness of the proposed method is verified by simulation. The proposed method restricts both THD and unbalance factor of input currents.