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Quantitatively evaluation on the cogging torque of permanent magnet motor caused by stator and rotor defect

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cogging torque makes great attribute to the torque ripple and noise of permanent magnet motor. The causes to produce cogging torque are discussed in this paper. The cogging torques of two PM motors is computed by finite element analysis. Computed results show the effectiveness of pole-slot-pairing method to reduce ideal cogging torque. While in practical motor, there may be some defects caused by manufacture, such as magnet performance discrete, and the evaluation of stator inner surface. These defects can cause non-ideal cogging torque. Such cogging torque is quantificationally analyzed by finite element analysis.

Original languageEnglish
Title of host publication5th International Conference on Power Electronics and Drive Systems, PEDS 2003 - Proceedings
EditorsKing-Jet Tseng
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages682-685
Number of pages4
ISBN (Electronic)0780378857
DOIs
StatePublished - 2003
Event5th International Conference on Power Electronics and Drive Systems, PEDS 2003 - Singapore, Singapore
Duration: 17 Nov 200320 Nov 2003

Publication series

NameProceedings of the International Conference on Power Electronics and Drive Systems
Volume1

Conference

Conference5th International Conference on Power Electronics and Drive Systems, PEDS 2003
Country/TerritorySingapore
CitySingapore
Period17/11/0320/11/03

Keywords

  • Cogging torque
  • permanent magnet motor
  • stator and rotor defect

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