A five-leg inverter for driving a traction motor and a compressor motor

Gui Jia Su, John S. Hsu

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in electric vehicle/hybrid electric vehicle applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further component reduction is made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

Original languageEnglish
Pages (from-to)687-692
Number of pages6
JournalIEEE Transactions on Power Electronics
Volume21
Issue number3
DOIs
StatePublished - May 2006

Funding

Manuscript received March 9, 2005; revised October 26, 2005. This paper was presented at the 2004 IEEE Workshop on Power Electronics in Transportation (WPET 2004), October 21–22, 2004, Detroit, Michigan. This work was supported by the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract DE-AC05-00OR22725. Recommended by Associate Editor J. Shen.

Keywords

  • EV/HEV traction drive
  • Electric vehicle/hybrid electric vehicle (EV/HEV) compressor drive
  • Five-leg inverter
  • Two-phase motor
  • Zero-sequence current (ZSC)

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