| 摘要 |
<P>PROBLEM TO BE SOLVED: To constantly detect the single operation of a distributed power supply system that is inexpensively and simply constituted and improved in workability. <P>SOLUTION: The distributed power supply system comprises system linkage inverters 6<SB>1</SB>to 6<SB>3</SB>and a controller 2. Each of the system linkage inverters 6<SB>1</SB>to 6<SB>3</SB>converts DC powers from corresponding DC power supplies 5<SB>1</SB>to 5<SB>3</SB>to AC powers, outputs the AC powers in conjunction with a system power supply 4, and detects the single operation by minutely varying the AC powers. The controller 2 obtains the drive information of each of the system linkage inverters 6<SB>1</SB>to 6<SB>3</SB>via a communication line 3, and transmits a synchronization confirmation trigger signal that urges the system linkage inverters 6<SB>1</SB>to 6<SB>3</SB>to confirm whether the minute variations are synchronized or not via the communication line 3. By this, each of the system linkage inverters 6<SB>1</SB>to 6<SB>3</SB>confirms whether the minute variations are mutually synchronized or not via the communication line 3 in accordance with the synchronization confirmation trigger signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
