This article presents a multiphysics design process considering multiobjective optimization for high-speed permanent magnet machines (HSPMMs) to obtain an optimized design. Based on the initial dimensions, the parameters of the active part of the rotor are further limited through the analysis of rotor stress and dynamics. The multiobjective optimization on the electromagnetic characteristics is conducted under the above ranges of parameters to obtain high efficiency and low thermal load. The design parameters of the cooling system are analyzed and the thermal field is also studied using the coupled fluid-temperature model. A prototype has been fabricated and tested to validate the multiphysics design process including the multiobjective optimization.

中文翻译：

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高速永磁电机的多物理场设计和多目标优化

本文介绍了一个多物理场设计过程，该过程考虑对高速永磁电机 (HSPMM) 进行多目标优化以获得优化设计。在初始尺寸的基础上，通过转子应力和动力学分析，进一步限制了转子活动部分的参数。在上述参数范围内对电磁特性进行多目标优化，以获得高效率和低热负荷。分析了冷却系统的设计参数，并使用耦合流体温度模型研究了热场。已经制造并测试了一个原型，以验证包括多目标优化在内的多物理场设计过程。