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Zero-voltage-switching single-phase inverter with active power decoupling

Active Power Decoupling (APD) is used for single-phase inverter to cope with the double-line frequency power pulsation in the inverter DC side. In this paper, zero-voltage switching (ZVS) for the single-phase inverter with APD is introduced. A ZVS SPWM scheme for single-phase inverter with APD is proposed. The operation of the ZVS single-phase inverter with APD is analyzed and ZVS conditions are derived. Finally, a 500kHz 1.5kW prototype is built to verify the theoretical analysis.