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Title: Method and system for operating an electric motor

Patent ·
OSTI ID:1082710
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Methods and systems for operating an electric motor having a plurality of windings with an inverter having a plurality of switches coupled to a voltage source are provided. A first plurality of switching vectors is applied to the plurality of switches. The first plurality of switching vectors includes a first ratio of first magnitude switching vectors to second magnitude switching vectors. A direct current (DC) current associated with the voltage source is monitored during the applying of the first plurality of switching vectors to the plurality of switches. A second ratio of the first magnitude switching vectors to the second magnitude switching vectors is selected based on the monitoring of the DC current associated with the voltage source. A second plurality of switching vectors is applied to the plurality of switches. The second plurality of switching vectors includes the second ratio of the first magnitude switching vectors to the second magnitude switching vectors.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-07NT43123
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Number(s):
8,359,131
Application Number:
12/732,003
OSTI ID:
1082710
Country of Publication:
United States
Language:
English

References (5)

Space vector modulation schemes for a five-phase voltage source inverter
  • Iqbal, A.; Levi, E.
  • 2005 IEEE 11th European Conference on Power Electronics and Applications, 2005 European Conference on Power Electronics and Applications https://doi.org/10.1109/EPE.2005.219194
conference January 2005
Analysis and minimization of input current and voltage ripples of five-phase PWM inverters conference December 2008
Companion interview: With Alex German journal May 2011
Computation and measurements of the DC link current in six-phase voltage source PWM inverters for AC motor drives
  • Bojoi, R.; Caponet, M. C.; Grieco, G.
  • Power Conversion Conference - Osaka PCC 2002, Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579) https://doi.org/10.1109/PCC.2002.998097
conference January 2002
Extending voltage range and reducing torque ripple of five-phase motor drives with added voltage harmonics conference February 2008

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