To provide a solar power generation device in which a complex constitution is prevented and frequency and voltage of generated power can be changed based on the use of the generated power.
The solar power generation device comprises a plurality of solar battery units 50. The solar battery unit 50 includes a solar battery 1 whose positive electrode is connected to a terminal t11, a switch SW1 whose one end is connected to the negative electrode of the solar battery 1 and the other end is connected to a terminal t12, and a switch SW2 which makes the terminal t11 and the terminal t12 conductive by circumnavigating the solar battery 1 and the switch SW1 in ON state. A control unit 2 so controls as to make each solar battery 50 into a power supply state wherein the switch SW1 is ON and the switch SW2 is OFF, into a power supply stopping state wherein the switches SW1 and SW2 are OFF, or into a bypass state wherein the switch SW1 is OFF and the switch SW2 is ON, based on the content of the generated power to be supplied.
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai