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Brushless exciters using a high temperature superconducting field winding

United States Patent

March 18, 2008
View the Complete Patent at the US Patent & Trademark Office
A brushless exciter for a synchronous generator or motor generally includes a stator and a rotor rotatably disposed within the stator. The rotor has a field winding and a voltage rectifying bridge circuit connected in parallel to the field winding. A plurality of firing circuits are connected the voltage rectifying bridge circuit. The firing circuit is configured to fire a signal at an angle of less than or at an angle greater than The voltage rectifying bridge circuit rectifies the AC voltage to excite or de-excite the field winding.
Garces; Luis Jose (Schenectady, NY), Delmerico; Robert William (Clifton Park, NY), Jansen; Patrick Lee (Scotia, NY), Parslow; John Harold (Scotia, NY), Sanderson; Harold Copeland (Tribes Hill, NY), Sinha; Gautam (Chesterfield, MO)
General Electric Company (Niskayuna, NY)
11/ 326,978
January 6, 2006
REFERENCE TO GOVERNMENT CONTRACTS The U.S. Government may have certain rights in this technology under Contract Number DE-FC36-02GO11101 awarded by the Department of Energy.