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Time- and Frequency-Domain Steady-State Solutions of Nonlinear Motional Eddy Currents Problems

Author

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  • Léo A.J. Friedrich

    (Department of Electrical Engineering, Electromechanics and Power Electronics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands)

Abstract

This paper presents a comparison of different time- and frequency-domain solvers for the steady-state simulation of the eddy current phenomena, due to the motion of a permanent magnet array, occurring in the soft-magnetic stator core of electrical machines that exhibits nonlinear material characteristics. Three different dynamic solvers are implemented in the framework of the isogeometric analysis, namely the traditional time-stepping backward-Euler technique, the space-time Galerkin approach, and the harmonic balance method, which operates in the frequency domain. Two-dimensional electrical machine benchmarks, consisting of both slotless and slotted stator core, are considered to establish the accuracy, convergence, and computational efficiency of the presented solvers.

Suggested Citation

  • Léo A.J. Friedrich, 2021. "Time- and Frequency-Domain Steady-State Solutions of Nonlinear Motional Eddy Currents Problems," J, MDPI, vol. 4(1), pages 1-27, January.
    • Handle: RePEc:gam:jjopen:v:4:y:2021:i:1:p:2-48:d:477263
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