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

C.H.H.M. Custers; J.W. Jansen; E.A. Lomonova

doi:10.1109/TMAG.2017.2697946

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

C.H.H.M. Custers, J.W. Jansen, E.A. Lomonova

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

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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 language	English
Article number	829406
Pages (from-to)	1-6
Number of pages	6
Journal	IEEE Transactions on Magnetics
Volume	53
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2017.2697946
Publication status	Published - 1 Nov 2017
Event	2017 IEEE International Magnetics Conference, INTERMAG 2017 - Convention Centre Dublin, Dublin, Ireland Duration: 24 Apr 2017 → 28 Apr 2017 Conference number: 2017 http://intermag2017.com/

Keywords

Analytical modeling
eddy current
Fourier analysis
permanent-magnet machines

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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.",

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KW - Fourier analysis

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