Analysis of eddy-current loss in a double-stator cup-rotor PM machine

Shuangxia Niu, K. T. Chau, J. Z. Jiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

44 Citations (Scopus)


In this paper, a new double-stator cup-rotor permanent-magnet brushless DC (PMBDC) machine is proposed and analyzed. Since the machine structure is so unique while its operating principle is so distinct, a numerical field approach, namely the circuit-field-torque grid-model time-stepping finite-element method (CFT-GM-TS-FEM), is newly developed to analyze the steady-state and dynamic characteristics of the machine. Particularly, the analysis of eddy-current loss in both the PMs and iron core of the machine is conducted. Experimental results are given for verification.
Original languageEnglish
Pages (from-to)4401-4404
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number11 PART 2
Publication statusPublished - 1 Nov 2008
Externally publishedYes


  • Eddy-current loss
  • Finite-element method
  • Permanent-magnet machine

ASJC Scopus subject areas

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


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