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Method and system for controlling a rotational speed of a rotor of a turbogenerator

United States Patent

December 30, 2008
View the Complete Patent at the US Patent & Trademark Office
A system and method controls a rotational speed of a rotor or shaft of a turbogenerator in accordance with a present voltage level on a direct current bus. A lower threshold and a higher threshold are established for a speed of a rotor or shaft of a turbogenerator. A speed sensor determines speed data or a speed signal for the rotor or shaft associated with a turbogenerator. A voltage regulator adjusts a voltage level associated with a direct current bus within a target voltage range if the speed data or speed signal indicates that the speed is above the higher threshold or below the lower threshold.
Stahlhut; Ronnie Dean (Bettendorf, IA), Vuk; Carl Thomas (Denver, IA)
Deere & Company (Moline, IL)
11/ 514,761
September 1, 2006
This invention was made with U.S. government support under Cooperative Agreement No. DE-FC26-05NT42422 awarded by the Department of Energy (DOE). The U.S. government has certain rights in this invention.