Single-stage grid-connected flyback inverter with zero current switching for AC module application

In this paper, a new flyback inverter with simple auxiliary circuit is presented. With adding the auxiliary circuit to the main circuit, the energy stored in the transformer's leakage inductance is recovered and primary switch is soft switches. In this paper, the operation of the flyback inverter with proposed auxiliary circuit is investigated. Furthermore, some considerations for the design of the flyback inverter are presented. Performance of the flyback micro inverter is proved using simulation results.

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