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GRID INTERCONNECTION DEVICE, GRID INTERCONNECTION SYSTEM, AND ELECTRIC POWER CONTROL SYSTEM

  • US 20080179966A1
  • Filed: 01/29/2008
  • Published: 07/31/2008
  • Est. Priority Date: 01/30/2007
  • Status: Active Grant
First Claim
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1. A grid interconnection device that converts electric power from a power supply device into predetermined alternating-current power and, interconnects the power supply device to a power distribution system, the grid interconnection device comprising:

  • a detector configured to detect islanding of the power supply device; and

    a receiver configured to receive power failure information including local area information indicative of an area in which a power failure occurs, through a predetermined transmission path,wherein the detector enhances detection sensitivity for the islanding when the received power failure information includes the local area information indicative of a different area from the area to which the power distribution system belongs.

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