2D semi-analytical modeling of Eddy currents in multiple non-connected conducting elements

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Abstract

This paper concerns the semi-analytical modeling of parasitic eddy current distributions and forces in electromagnetic devices. The harmonic, Fourier-based, model is extended to incorporate a position-dependent conductivity, and restrictions on the induced current density are added to model eddy currents in non-connected conducting elements. To model time-dependent behavior of eddy currents, multiple time harmonics can be incorporated in the solutions. The developed method is verified using the finite-element method for a wide range of frequencies. The model is applied to a coreless linear motor with electrically conducting cooling plates, and the parasitic force is analyzed.

Original languageEnglish
Article number829406
Pages (from-to)1-6
Number of pages6
JournalIEEE Transactions on Magnetics
Volume53
Issue number11
DOIs
Publication statusPublished - 1 Nov 2017
Event2017 IEEE International Magnetics Conference, INTERMAG 2017 - Convention Centre Dublin, Dublin, Ireland
Duration: 24 Apr 201728 Apr 2017
Conference number: 2017
http://intermag2017.com/

Keywords

  • Analytical modeling
  • eddy current
  • Fourier analysis
  • permanent-magnet machines

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