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 exhibit 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.
Original language | English |
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Pages (from-to) | 22-48 |
Number of pages | 27 |
Journal | J : Multidisciplinary Scientific Journal |
Volume | 4 |
Issue number | 1 |
DOIs | |
Publication status | Published - 8 Jan 2021 |
Keywords
- harmonic balance method
- frequency domain
- nonlinear characteristics
- eddy currents
- permanent magnet
- isogeometric analysis
- convergence analysis