A single-phase photovoltaic grid-connected micro-inverter

The invention discloses a single-phase photovoltaic grid-connected micro-inverter comprising a photovoltaic assembly which is connected to a decoupling circuit. An output terminal of the decoupling circuit is connected to a flyback inverter. The flyback inverter is connected to a rear-stage full-bridge circuit. An output terminal of the rear-stage full-bridge circuit is connected to a municipal power-supply network. The beneficial effects of the present invention are that each photovoltaic assembly works at a maximum power point; the anti partial-shading capability is strong; each flyback inverter is integrated with a single photovoltaic assembly; the single-phase photovoltaic grid-connected micro-inverter can be used once plugged; the installation is convenient; the system expansion is convenient and simple; the space occupied by the flyback inverter is small; the single-phase photovoltaic grid-connected micro-inverter is installed in a distributed mode so as to provide convenience for configuration; and the