Parameter extraction of eddy-current magnetic field - circuit coupled problems using matrix analysis method

Weinong Fu, Siu Lau Ho

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


An accurate equivalent circuit model to represent a 2-dimentional (2-D) eddy-current magnetic field is presented. The magnetic field can be coupled with stranded windings and solid conductors. To develop the formulations of impedance computation, two systematic matrix analysis methods based on the system equations, one using loop method and one using nodal method, are presented. In the proposed work it is pointed out that each solid conductor must be represented by a circuit branch. With this approach the effect of eddy-current can be fully included in the equivalent circuit model. The paper also presents the formulations for the computation of the total power loss for magnetic field - circuit coupled problems and discusses a common mistake in many applications.
Original languageEnglish
Title of host publicationEMC 2008 : IEEE International Symposium on Electromagnetic Compatibility, 2008, 18-22 Aug. 2008, Detroit, MI
Number of pages7
ISBN (Electronic)9781424416981
ISBN (Print)9781424416998
Publication statusPublished - 2008
EventIEEE International Symposium on Electromagnetic Compatibility [EMC] -
Duration: 1 Jan 2008 → …

Publication series

NameLEOS Summer Topical Meetings. Digest
ISSN (Print)1099-4742


ConferenceIEEE International Symposium on Electromagnetic Compatibility [EMC]
Period1/01/08 → …


  • Eddy-current
  • Equivalent circuit
  • Finite element method
  • Impedance
  • Parameter
  • Power loss

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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