Model Order Reduction for Multi-strand Electrical Machine Windings

Abstract

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.