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Excitation system for rotating synchronous machines

United States Patent

March 26, 2002
View the Complete Patent at the US Patent & Trademark Office
A system for providing DC current to a rotating superconducting winding is provided. The system receives current feedback from the superconducting winding and determines an error signal based on the current feedback and a reference signal. The system determines a control signal corresponding to the error signal and provides a positive and negative superconducting winding excitation voltage based on the control signal.
Umans; Stephen D. (Belmont, MA), Driscoll; David J. (South Euclid, OH)
Reliance Electric Technologies, LLC (Mayfield Heights, OH)
09/ 500,858
February 9, 2000
GOVERNMENT-INTEREST This invention was made with Government support under Prime Contract No. DE-FC36-93CH10580 awarded by the Department of Energy. The Government has certain rights in this invention.