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Methods, systems and apparatus for optimization of third harmonic current injection in a multi-phase machine

United States Patent

October 2, 2012
View the Complete Patent at the US Patent & Trademark Office
Methods, system and apparatus are provided for increasing voltage utilization in a five-phase vector controlled machine drive system that employs third harmonic current injection to increase torque and power output by a five-phase machine. To do so, a fundamental current angle of a fundamental current vector is optimized for each particular torque-speed of operating point of the five-phase machine.
Gallegos-Lopez; Gabriel (Torrance, CA)
GM Global Technology Operations LLC (Detroit, MI)
12/ 720,338
March 9, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under DE-FC26-07NT43123, awarded by the US-Department of Energy The Government has certain rights in this invention.