The improvement of the robustness of the performance of electrical machines in presence of neglected features, such as manufacturing tolerances and deviations in material properties and parameters, is increasingly demanded. The available optimization procedures do not account for manufacturing tolerances, leaving the decision process incomplete. The article proposes a methodology for the selection of the more robust design towards manufacturing tolerances among the best candidates, detected by an optimization procedure. Statistical tools for tolerance analysis and worst-case analysis are discussed and adopted for the scope. The proposed methodology is used to select a robust design with respect to torque ripple deviations due to geometric tolerances in the laminations of a Synchronous Reluctance Motor with fluid shaped barriers. The statistical performance analysis and the worst-case analysis provide an estimation of the performance deterioration in the presence of the tolerances in the manufacturing process.

中文翻译：

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同步磁阻电机的稳健设计方法

在存在被忽视的特征（例如制造公差和材料特性和参数的偏差）的情况下，越来越需要提高电机性能的稳健性。可用的优化程序不考虑制造公差，使决策过程不完整。本文提出了一种方法，用于在最佳候选者中选择更稳健的设计以实现制造公差，并通过优化程序检测到。该范围讨论并采用了用于容差分析和最坏情况分析的统计工具。所提出的方法用于选择针对转矩脉动偏差的稳健设计，这是由于具有流体形状屏障的同步磁阻电机的叠片中的几何公差造成的。