Fundamental verification of a single-to-single phase direct power converter for wireless power transfer systems

This paper proposes a single phase to single phase power conversion that is based on the indirect type of matrix converter, an active buffer circuit and boost chopper circuit. Pulse density modulation (PDM) control which can achieve zero voltage switching, is applied to the inverter part. From the simulation results, the operation to compensate the power ripple is confirmed because the DC link current is controlled approximately 0.5 A constantly. However, there is the 35% of the current ripple because of the quantization error when PDM control is applied to the inverter. As a result, the THD of the output voltage and input current are 4.9% and 42.7% respectively. As a result, a validity of the proposed circuit is confirmed.