Magnetic Circuit Analysis for a Magnetless Double-Rotor Flux Switching Motor

Chuang Yu, Shuangxia Niu, Siu Lau Ho, Weinong Fu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


� 2015 IEEE. In this paper, an efficient and effective magnetic circuit model is developed for the analysis of a magnetless double-rotor flux switching motor. First, a magnetic circuit network for the proposed machine is built, and formulas for the calculation of the magnetic components in the circuit, including the permeances of teeth, yokes, slots, leakage permeances, and air-gap permeances, are derived. Then, by applying Kirchhoff's current law to each node in the network, nodal analysis is used to solve the matrix equation. All the circuit variables, and hence the complete motor magnetic characteristics are being considered. When the rotor rotates, the air-gap permeances are adjusted accordingly, and the above calculations are repeated, so as to find the complete static performance of the motor. Last, the validity and the effectiveness of the proposed method are verified using both the experimental results and the simulation results obtained from the time-stepping finite-element method.
Original languageEnglish
Article number7131555
JournalIEEE Transactions on Magnetics
Issue number11
Publication statusPublished - 1 Nov 2015


  • Double rotor
  • finite-element analysis (FEA)
  • flux switching motor (FSM)
  • magnetic circuit analysis (MCA)
  • magnetless

ASJC Scopus subject areas

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


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