| 摘要 |
PROBLEM TO BE SOLVED: To control the number of inverters being operated according to the insolation intensity with high reliability by controlling the operation and suspension of a power conversion means with the signal of the detection means which detects the input resultant power, etc., of the power conversion means. SOLUTION: A time of low insolation state where a converter 2-1 is operable, a switch 4-1 is closed, and the converter 2-1 is operates, but the close signal S from a switch control circuit 5-1 is not outputted, and the switch 4-2 connected to the converter 2-2 is kept closed. Therefore, the power generated by a solar battery 1-1 is converted with only the converter 2-1. When the insolation intensity increases, a close signal SH1 is outputted from the switch control circuit 5-1, receiving the output of a detection means 3-1, and the converter 2-2 operates. Furthermore, when insolation intensity increases, a close signal SH2 is outputted from the control circuit 5-2, receiving the output of the detection means 3-2, and the switch 4-2 is closed, and the converter 2-3 operates. |
