| 摘要 |
PURPOSE:To start a solar power generation system smoothly and to utilize the generated power effectively by enhancing the accuracy in the estimation of feedable power for the entire solar cell module group. CONSTITUTION:When a solar power generation system is started, a short circuit switch 24 is closed by a switching command signal SSC delivered from a start monitoring circuit 22 thus short-circuiting a plurality of modules selected from a solar cell module group simultaneously. When a short circuit current detection signal ISCl is higher than a preset level, the start monitoring circuit delivers a starting command signal SSTl to an inverter section 21 thus starting the inverter section 21. The short circuit switch 24 is then opened by the switching command signal SSC thus resetting two sets of solar cell modules to normal connection. Alternatively, a switching element at the inverter section 21 is turned ON and the starting conditions are decided as mentioned above for the detected value of total short circuit current. Each operation 15 effected automatically. |
