A Power Decoupling Circuit Research Based on Interleaved Parallel Flyback Micro-inverter

A power decoupling circuit is proposed Based on the interleaved parallel fly back micro-inverter in this paper due to instantaneous power imbalance. In order to effectively inhibit secondary power disturbance and greatly reduce the decoupling capacitor value, the decoupling circuit carry on boost/buck mode to storage/release energy. Using this method can make the input/output power of the whole system achieve a state of dynamic balance. What´s more, the decoupling capacitor requires only a small capacitor instead of electrolytic capacitor to improve the whole lifetime of micro-inverter. The experimental results show that the decoupling power circuit exhibits satisfactory character of high efficiency, simple topology, and high reliability.