The flyback grid-connected micro-inverter has larger current ripple and lower output power,while the interleaved flyback grid-connected micro-inverter needs many switching devices and complex control strategy.Therefore,a novel single-stage forward-flyback grid-connected microinverter with two transformers is proposed in this paper.The proposed inverter uses only two switches in the secondary side to simplify the control strategy and guarantee high reliability.The utilization of two transformers in the topol...