| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a photovoltaic power generation device, capable of facilitating switching between an operation of a solar cell and an operation of a secondary battery, with no enlargement of device configuration. <P>SOLUTION: A control unit 17 performs maximum power follow-up control in which, during operation of a solar cell 11, a switch element 20 of a switch circuit 19 is turned off so that an inverter 15 causes the output power of the solar cell 11 to be a maximum power. It performs discharge control of a secondary battery 12 via the inverter 15 by turning on the switch element 20 of the switch circuit 19 during a discharge operation of the secondary battery 12. It performs charge control of the secondary battery 12 via a diode 21 of the switch circuit 19 by causing the inverter 15 to adjust the voltage of a DC system 13 to be a rated voltage of the secondary battery 12 during a charging operation of the secondary battery 12. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
