Control and operation of a new 8/6-pole doubly salient permanent-magnet motor drive

Ming Cheng, K. T. Chau, C. C. Chan, Qiang Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review

95 Citations (Scopus)


This paper proposes a new 8/6-pole doubly salient permanent-magnet (DSPM) motor drive, which offers the advantages of higher power density, higher efficiency, and wider speed range. The corresponding control and operation of the motor drive are presented. A variable proportional-integral (PI) controller combined with bang-bang control for the DSPM motor drive is developed. Two operation modes, namely, four-phase and two-phase operation modes, are proposed for the 8/6-pole DSPM motor drive. The drive system is implemented and tested. The results show that the developed control scheme can operate the DSPM motor properly, and the DSPM motor drive offers high efficiency over wide power range and good dynamic performance. Furthermore, the two-phase operation mode of the 8/6-pole DSPM motor offers the possibility of eliminating the torque ripple of the motor drive.

Original languageEnglish
Pages (from-to)1363-1371
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number5
Publication statusPublished - Sept 2003
Externally publishedYes


  • Control strategy
  • Doubly salient (DS) motor drive
  • Operation modes
  • Permanent-magnet (PM) motor drive
  • Proportional-integral (PI) control
  • Torque ripple

ASJC Scopus subject areas

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


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