We develop an efficient model order reduction method for the finite element simulation of an electrical machine with a multi-strand stator winding. The reduced model is independent of the connection of the strands. Therefore, simulation results of only a single slot are required to compute a reduced basis which can be used for different winding configurations. Numerical simulations of a high-speed induction motor in time-harmonic and time-dependent regimes show significant savings in terms of memory and solving time of the proposed method compared to a standard finite element approach.
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Schneckenleitner et al. (2024) studied this question.
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