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Electric machine and current source inverter drive system

United States Patent

June 24, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Combined Electric Machine and Current Source Inverter Drive System
A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.
Hsu; John S. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 292,196
November 9, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.