Characterizations of PM Synchronous Motor With an Integrated Common-Mode Voltage Filter

Jing Zhang, Xiaochen Zhang, Chunyang Gu, Jing Li, He Zhang, Han Zhao, Suoliang Zhang

Research output: Journal PublicationArticlepeer-review


The high-frequency common-mode voltage generated by switching of semiconductor devices may cause premature failure of the insulation system and metallic bearings in the motor drive systems, the false trigger of the relay devices, and electromagnetic interference. In this article, an integrated filter is proposed to reduce the common-mode voltage in the permanent magnet synchronous motor. In this filter, partial motor windings, which serve as inductance, are integrated with the passive components. Compared to the system with a conventional passive filter, the omitted filtering inductor of this integrated common-mode voltage filter reduces the weight and volume of the whole motor drive system. The peak-to-peak value and the high-order harmonic components of common-mode voltage can be reduced to up to 10% and 2% of those in motor without the integrated filter, respectively. Additionally, the root mean square value of the common-mode voltage has been reduced by 27%. The benefits of the integrated filter in suppressing common-mode voltage have been validated in both simulation results and experimental data.

Original languageEnglish
Pages (from-to)353-366
Number of pages14
JournalIEEE Transactions on Industry Applications
Issue number1
Publication statusPublished - 14 Sept 2023


  • AC motors
  • common-mode voltage
  • integrated filters
  • motor drives
  • permanent magnet motor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering


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