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Third harmonic current restraining of five-phase permanent magnet synchronous motor based on dual synchronous rotating coordinates

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A dual-plane vector scheme with an additional pair of harmonic current controllers was proposed to restrain harmonic currents caused by dead-time effect of voltage source inverter (VSI) and the dis-sinusoidal EMF of five-phase permanent magnet synchronous motor (FPMSM). The low-order harmonic voltage generated by dead-time effect was researched. Using extended symmetrical component transformation, the mathematic model under rotating coordinate of FPMSM was deduced. The third harmonic voltage would cause large magnitude of harmonic current for the low impedance of third harmonic sub-space, so an additional pair of harmonic current controllers was introduced to compensate them. The whole arithmetic is implemented in a single FPGA chip, experimental results demonstrate the proposed compensation method can effectively restrain harmonic current generated by dead-time effect of VSI and dis-sinusoidal EMF.

Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume31
Issue number12
StatePublished - 25 Apr 2011
Externally publishedYes

Keywords

  • Dead-time effect
  • Five-phase permanent magnet synchronous motor (FPMSM)
  • Harmonic analysis
  • Synchronous rotating reference coordinates
  • Voltage source inverter (VSI)

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