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Method and apparatus for anti-islanding protection of distributed generations

United States Patent

March 21, 2006
View the Complete Patent at the US Patent & Trademark Office
An apparatus for anti-islanding protection of a distributed generation with respect to a feeder connected to an electrical grid is disclosed. The apparatus includes a sensor adapted to generate a voltage signal representative of an output voltage and/or a current signal representative of an output current at the distributed generation, and a controller responsive to the signals from the sensor. The controller is productive of a control signal directed to the distributed generation to drive an operating characteristic of the distributed generation out of a nominal range in response to the electrical grid being disconnected from the feeder.
Ye; Zhihong (Clifton Park, NY), John; Vinod (Montpelier, VT), Wang; Changyong (Shanghai, CN), Garces; Luis Jose (Schenectady, NY), Zhou; Rui (Clifton Park, NY), Li; Lei (Shanghai, CN), Walling; Reigh Allen (Clifton Park, NY), Premerlani; William James (Scotia, NY), Sanza; Peter Claudius (Niskayuna, NY), Liu; Yan (Schenectady, NY), Dame; Mark Edward (Niskayuna, NY)
General Electric Company (Schenectady, NY)
10/ 677,559
October 1, 2003
FEDERAL RESEARCH STATEMENT This invention was made with Government support under contract NAD-1-30605-01 awarded by the Department of Energy. The Government has certain rights in this invention.