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Compensation for electrical converter nonlinearities

United States Patent

November 19, 2013
View the Complete Patent at the US Patent & Trademark Office
Systems and methods are provided for delivering energy from an input interface to an output interface. An electrical system includes an input interface, an output interface, an energy conversion module between the input interface and the output interface, an inductive element between the input interface and the energy conversion module, and a control module. The control module determines a compensated duty cycle control value for operating the energy conversion module to produce a desired voltage at the output interface and operates the energy conversion module to deliver energy to the output interface with a duty cycle that is influenced by the compensated duty cycle control value. The compensated duty cycle control value is influenced by the current through the inductive element and accounts for voltage across the switching elements of the energy conversion module.
Perisic; Milun (Torrance, CA), Ransom; Ray M. (Big Bear City, CA), Kajouke; Lateef A. (San Pedro, CA)
GM Global Technology Operations LLC (Detroit, MI)
12/ 941,521
November 8, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Agreement No. DE-FC26-07NT43123, awarded by the United States Department of Energy. The Government has certain rights in this invention.