| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a voltage monitoring system capable of improving durability and reliability compared with a conventional one while it is simple and downsized. <P>SOLUTION: A PLC signalizing unit 560 is installed in an FC stack case 520, and a cell voltage calculation unit 590 is installed outside the FC stack case 520. Based on a cell voltage signal supplied from a terminal 540-m for the voltage via a wiring 550-m, the PLC signalizing unit 560 forms a PLC signal to express a cell voltage, superimposes the formed PLC signal on an F output electric power (electric power waveform), and transmits the signal to the cell voltage calculation unit 590. The cell voltage calculation unit 590 takes out the PLC signal from the electric power waveform supplied via an FC output cable 510b, and detects the cell voltage based on the taken out PLC signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
