A novel control strategy for a combined system using both matrix converter and inverter without interconnection reactors

This paper proposes the control strategy of a matrix converter and a voltage type inverter in parallel system which becomes unnecessary of interconnection reactors. The proposed control strategy divides the operation time of each converter to every carrier cycle. Further the output voltage of the combined system and the power distribution ratio of each converter are controlled, simultaneously. In addition, the sinusoidal input current waveform is obtained. The operation time of each converter is divided in one carrier cycle. Thus, interconnection reactors are not required. These new proposals are confirmed by the simulation and experimental results.