Photovoltaic power generation device

The utility model relates to a photovoltaic power generation device. The photovoltaic power generation device comprises a solar support, a photovoltaic plate installed on the solar support, a charging controller connected with the photovoltaic plate, and a storage battery connected with the charging controller; and the storage battery is connected with a DC voltage conversion circuit, and the DC voltage conversion circuit comprises a switch tube, a transformer, a plurality of DC output sub circuits, a feedback sub circuit and a resonance control module. A multipath output function is achieved through a circuit composed of the resonance control module, the switch tube, the transformer and the DC output sub circuits, so that power supply requirements of a subsequent digital circuit and a simulation circuit are met; ground terminals of the DC output sub circuits are separately arranged, and crosstalk between a simulation signal and a digital signal is prevented when the wind power generation device is used as a