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Cryogenic exciter

United States Patent

March 13, 2012
View the Complete Patent at the US Patent & Trademark Office
The disclosed technology is a cryogenic static exciter. The cryogenic static exciter is connected to a synchronous electric machine that has a field winding. The synchronous electric machine is cooled via a refrigerator or cryogen like liquid nitrogen. The static exciter is in communication with the field winding and is operating at ambient temperature. The static exciter receives cooling from a refrigerator or cryogen source, which may also service the synchronous machine, to selected areas of the static exciter and the cooling selectively reduces the operating temperature of the selected areas of the static exciter.
Bray; James William (Niskayuna, NY), Garces; Luis Jose (Niskayuna, NY)
General Electric Company (Niskayuna, NY)
11/ 288,551
November 29, 2005
REFERENCE TO GOVERNMENT CONTRACTS The U.S. Government may have certain rights in this invention under Contract Number DE-FC36-02GO011100 awarded by the Department of Energy.