METHOD FOR CONTROLLING POWER CONVERSION DEVICE, AND POWER CONVERSION DEVICE

The present invention is related to a control method for controlling a power converter including a first power conversion circuit and a second power conversion circuit by using a control circuit The first power conversion circuit is connected to a solar cell module and a capacitor converts output power of the solar cell module and outputs the converted power to the capacitor the second power conversion circuit is connected to the capacitor and converts a voltage at a connection terminal connected to the capacitor The control method comprises step of controlling operation of the second power conversion circuit based on the output voltage of the solar cell module to use output power of the second power conversion circuit for charging the capacitor