Multiobjective and multiload point design optimization of an interior permanent magnet (IPM) synchronous machine using a global response surface method to achieve low torque ripple with high average torque over the entire speed range is presented in this article. The approach consisting of a set of design steps and multiobjective optimization to obtain high-performance electric machines with optimum usage of rare-earth materials for mass production is presented. The design optimization has been applied to a 12-slot eight-pole IPM machine with two different rotor structures to arrive at the optimized design for a variable-speed high-performance application. Motor parameters are extracted under different load conditions to predict the torque/speed performance of the motors. The proposed design approach provides a machine design with maximized output torque, improved torque density, lower torque ripple, and optimum usage of rare-earth materials. Finally, the finite-element-based modeling results are validated with the experimental results.

中文翻译：

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用于高性能变速驱动器的内部永磁同步电机的多负载点优化

本文介绍了使用全局响应面方法对内部永磁 (IPM) 同步电机进行多目标和多负载点设计优化，以在整个速度范围内实现低转矩脉动和高平均转矩。介绍了由一组设计步骤和多目标优化组成的方法，以获得高性能电机，并在大批量生产中优化使用稀土材料。设计优化已应用于具有两种不同转子结构的 12 槽八极 IPM 电机，以实现变速高性能应用的优化设计。在不同负载条件下提取电机参数以预测电机的扭矩/速度性能。所提出的设计方法提供了一种具有最大化输出扭矩、改进的扭矩密度、更低的扭矩脉动和稀土材料的最佳使用的机器设计。最后，基于有限元的建模结果与实验结果进行了验证。