Dual mode switching strategy of flyback inverter for photovoltaic AC modules

In recent years, many topologies have been developed as PV module integrated converter for AC module system. Among these topologies, the flyback-type power converter have been occupied the attention due to its simplicities on configuration and control. In this paper, dual mode switching control method for flyback-type PV module integrated converter is proposed. Proposed switching control method changes the mode of operation in DCM and BCM alternatively. It is expected that the high performances in efficiency and transferred power quantity can be achieved through the conduction mode change. The efficacies of proposed switching technique are validated by simulation and experimental result.