Control Strategy of Grid-tied Flyback Microinverters
Flyback microinverters have the advantages of compact structure,small size,simple control loop,and electrical isolation.In this work,the mathematical model describing relationship between output current and reference current of DCM and BCM was derived,and the corresponding control strategy was given.Aiming at addressing inadequacies of fly-back inverters in power density and loss,a hybrid control strategy was proposed and applied to an interleaved parallel fly-back inverter to improve its low power level.The feasibility of the control strategy was verified by simulation.
grid connection of photovoltaicsflyback microinvertercontrol strategyisolated type
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