| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a stress applied on a capacitor, even when a system-cooperative inverter is stopped, while being linked with a power system, in a system-cooperative inverter which connects a plurality of single-phase inverters in series, as they are. <P>SOLUTION: When an inverter unit 5 and the system 12 are in a connecting state, and the operation of the inverter unit 5 is stopped, the resistance values of each resistor 26-1 to 26-3 are set up, so that the potential difference generated between both ends of each resistor 26-1 to 26-3 by the current which flows from the system 12, does not exceed a breakdown voltage of components constituting each single-phase inverter 20-1 to 20-3. <P>COPYRIGHT: (C)2010,JPO&INPIT |
