| 摘要 |
<P>PROBLEM TO BE SOLVED: To protect electronic components installed in an inverter from overcurrent without stopping a system even if the overcurrent occurs when an electric load is input in isolated operation. <P>SOLUTION: A fuel cell system 1 includes: a fuel cell stack 2; an inverter main circuit 3a converting DC power of the fuel cell stack 2 into AC power; and an inverter control circuit 3b constant-voltage controlling the inverter main circuit 3a and stopping the output of a control signal to the inverter main circuit 3a when the output of the overcurrent from the inverter main circuit 3a is detected. A retry control, in which the output voltage of the inverter main circuit 3a is returned to rated output voltage after retry latency has been passed, is performed after the output of the control signal is stopped in the inverter control circuit 3b. <P>COPYRIGHT: (C)2009,JPO&INPIT |
