39results about How to "Reduce pressure on resources" patented technology

The invention discloses a hybrid control method and system for an interleaved flyback photovoltaic micro inverter. The method comprises the following steps: S1, acquiring a real-time photovoltaic panel voltage, a power grid voltage effective value, a power grid phase and the average output power of the inverter; s2, calculating a gain factor based on the voltage of the photovoltaic panel and the phase of the power grid; s3, according to the gain factor, the network voltage effective value, the transformer excitation inductance, the average output power and the transformer turn ratio, the duty ratio and the switching frequency under the BCM are calculated; s4, comparing the switching frequency with a preset limiting frequency of a BCM mode and a preset fixed working frequency of a DCM mode, and selecting a working mode according to a comparison result; and S5, generating a corresponding control signal according to the working mode, wherein the control signal is used for driving a flyback switching tube and a power frequency flip circuit switching tube. The method has the advantages of reducing the calculation burden of mode switching and the like.