Matrix analysis of 2-D eddy-current magnetic fields

Weinong Fu, Siu Lau Ho

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)


We present an accurate equivalent circuit model to represent a 2-D eddy-current magnetic field. The magnetic field can be coupled with stranded windings and solid conductors. For use in developing formulations of impedance computation, we present two systematic matrix analysis methods based on the system equations, one using the loop method and the other using the nodal method. In the model, each solid conductor is represented by circuit branches. With this approach, the effect of eddy currents can be fully included. We also present the formulations for the computation of the total power loss for magnetic field-circuit coupled problems. We discuss a common mistake in many applications.
Original languageEnglish
Article number5208596
Pages (from-to)3343-3350
Number of pages8
JournalIEEE Transactions on Magnetics
Issue number9
Publication statusPublished - 1 Sept 2009


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

ASJC Scopus subject areas

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


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