Design and analysis of a new permanent magnet brushless DC machine

Jinyun Gan, K. T. Chau, Yong Wang, C. C. Chan, J. Z. Jiang

Research output: Journal article publicationConference articleAcademic researchpeer-review

22 Citations (Scopus)


A new permanent magnet (PM) brushless dc machine with a unique feature of flux regulation is proposed in this paper. The originality is that the air-gap flux of the machine is generated by both the PM excitation and the specially controlled stator current under the same PM pole. The machine possesses advantageous characteristics of both the PM brushless dc machine and the dc series machine. The rotor configuration and principle of operation are so novel that the magnetic field distribution and performances of the machine are analyzed by use of a time-stepping finite element method. The theoretical calculation is also verified by experimental measurement.

Original languageEnglish
Pages (from-to)3353-3356
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number5 I
Publication statusPublished - Sept 2000
Externally publishedYes
Event2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada
Duration: 9 Apr 200012 Apr 2000


  • Flux regulation
  • Permanent magnet brushless dc machine
  • Square wave
  • Time-stepping finite element method

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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