This article tackles the design problem for a permanent magnet Vernier machine with hybrid stator to achieve a high structure robustness, enhanced torque and improved power factor simultaneously. The key of the solution is divided into two parts. One is to solve the conflict between torque and power factor by deterministic optimization. The other is to optimize its robustness with the help of robust optimization. Firstly, sensitivity analysis is adopted to stratify design parameters. Afterwards, a multi-objective deterministic optimization is applied to achieve an optimal balancing design between the two competing objectives, torque and power factor. However, the deterministic optimization ignores the size deviation in actual production, which most likely results in the poor structure robustness. Therefore, robustness analysis is employed to check its robustness. Then, through the robustness optimization, the robustness of this machine is further improved on the basis of the deterministic optimization. Finally, a prototype machine is built and the experiments on the prototype machine are carried out to verify the validity of the robust optimization.

中文翻译：

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带混合定子的永磁游标机的稳健设计与优化

本文解决了具有混合定子的永磁游标电机的设计问题，以同时实现高结构稳健性、增强的扭矩和改善的功率因数。解决方案的关键分为两部分。一是通过确定性优化解决转矩与功率因数的冲突。另一种是借助鲁棒优化来优化其鲁棒性。首先，采用敏感性分析对设计参数进行分层。然后，应用多目标确定性优化来实现扭矩和功率因数这两个竞争目标之间的最佳平衡设计。然而，确定性优化忽略了实际生产中的尺寸偏差，这很可能导致结构鲁棒性较差。所以，采用稳健性分析来检验其稳健性。然后通过鲁棒性优化，在确定性优化的基础上进一步提高本机的鲁棒性。最后，搭建了样机并在样机上进行了实验，验证了鲁棒优化的有效性。