Analysis and Design of Grid-connected Micro Inverter Based on Interleaved Parallel Flyback Converter

The grid-connected PV micro inverter integrated with active clamp based on interleaved parallel flyback converter was studied. Its operation principle was discussed and the relative formulas about hardware design were deduced. In order to further raise the efficiency of the circuit, the active clamped circuit was added. The simulation results and experimental results verified the design method and the analysis conclusion.