Assistant model for considering slot-opening effect on no-load air-gap flux density distribution in interior-type permanent magnet motor

Liang Fang, Do Jin Kim, Jung-Pyo Hong

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

This paper proposes an effective assistant model for considering the stator slot-opening effect on air gap flux density distribution in conventional interior-type permanent magnet (PM) motor. Different from the conventional slot-opening effect analysis in surface-type PM (SPM) motor, a composite effect of slot-opening uniquely existing in IPM motor, which additionally causes enhancement of air gap flux density due to magnet flux path distortion in iron core between the buried PM and rotor surface. This phenomenon is represented by a proposed assistant model, which simply deals with this additional effect by modifying magnetic pole-arc using an effective method. The validity of this proposed analytical model is applied to predict the air gap flux density distribution in an IPM motor model and confirmed by finite element method (FEM).

Original languageEnglish
Pages (from-to)759-765
Number of pages7
JournalTransactions of the Korean Institute of Electrical Engineers
Volume60
Issue number4
DOIs
StatePublished - 2011 Jan 1

Keywords

  • Analytical method
  • Assistant model
  • Effective magnetic pole-arc
  • FEM
  • Spm/ipm motor

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