Design and optimisation of high-speed permanent magnet motor based on artificial neural network Online publication date: Mon, 29-Apr-2024
by Jinxing Zhao; Zekai Dong; Jinfeng Bu; Su Lin
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 17, No. 1, 2024
Abstract: High-speed permanent magnet synchronous motors (HSPMSM) have problems with skin and proximity effects and more high-frequency loss. Furthermore, if the design optimisation of the HSPMSM is directly based on a finite element model, the calculation time is too long. This paper studies the structural design, modelling, and optimisation method of a 100 krpm-10 kW HSPMSM. A finite-element simulation model considering the skin and proximity effect is firstly established. An optimisation method combining artificial neural network (ANN) and multi-objective genetic algorithm (MOGA) is proposed to perform the optimisation of the motor structure parameters. The ANN models are trained and tested with two datasets calculated with the finite-element model. After optimisation, the AC loss of the windings is greatly reduced from 296 W to 186.4652 W, while the optimisation time based on the ANN replacement model is reduced by nearly 70% compared to the optimisation based directly on the finite element model.
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