Magnetic field analysis of surface-mounted permanent-magnet motors

Yi Chang Wu, Feng Ming Ou, Bo Wei Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The prediction of the magnetic field is a prerequisite to investigate the motor performance. This paper focuses on the magnetic field estimation of surface-mounted permanent-magnet (SMPM) motors based on two approximations, i.e., the magnetic circuit analysis and the finite-element analysis (FEA). An equivalent magnetic circuit model is applied to analytically evaluate the magnetic field of a SMPM motor with exterior-rotor configuration. The two-dimensional FEA is then applied to numerically calculate the magnetic field and to verify the validity of the magnetic circuit model. The results show that the errors between the analytical predictions and FEA results are less than 6%. It is of benefit to further design purposes and optimization of SMPM motors.

Original languageEnglish
Title of host publicationAdvances in Mechanical Engineering
Number of pages6
Publication statusPublished - 2011
Event2011 1st International Conference on Mechanical Engineering, ICME 2011 - Phuket, Thailand
Duration: 2011 Apr 32011 Apr 4

Publication series

NameApplied Mechanics and Materials
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482


Conference2011 1st International Conference on Mechanical Engineering, ICME 2011

All Science Journal Classification (ASJC) codes

  • General Engineering


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