In this article, an airgap-harmonic-orientated design method is proposed, where the airgap harmonics are newly acted as the effective bridge between the three key elements of permanent magnet sources, modulators, or armature windings and the motor performances. In the proposed design method, the airgap harmonics play couple roles of design objectives and variables, which are not only served as the design variables for the motor performances, but also considered as the objectives for design parameters. For extensive investigation, a V-shape flux-modulated permanent-magnet (V-FMPM) motor is selected as a design example, which has a potential application for the electrical vehicles. In the optimization process, the sensitivity analysis of different airgap harmonics on the torque performance is conducted to select the leading airgap harmonics. Meanwhile, the sensitivity degrees of the design parameters on the leading harmonics are calculated to pick out the sensitive design parameters. Then, the performances of the V-FMPM motor are evaluated for validating airgap-harmonic-orientated design method. Finally, a prototype motor is built and tested. Both the theoretical analysis and experimental results verify the effectiveness and reasonability of the proposed design method and the V-FMPM motor.

中文翻译：

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基于气隙谐波导向设计方法的磁通调制永磁电机的设计和优化


本文提出了一种面向气隙谐波的设计方法，其中气隙谐波作为永磁源、调制器或电枢绕组这三个关键元件与电机性能之间的有效桥梁。在所提出的设计方法中，气隙谐波起着设计目标和变量的双重作用，它们不仅作为电机性能的设计变量，而且还被视为设计参数的目标。为了进行广泛的研究，选择了 V 形磁通调制永磁 (V-FMPM) 电机作为设计实例，该电机在电动汽车中具有潜在的应用。优化过程中，对不同气隙谐波对扭矩性能的敏感性分析，选择领先的气隙谐波。同时计算设计参数对主次谐波的敏感度，筛选出敏感的设计参数。然后，评估 V-FMPM 电机的性能，以验证面向气隙谐波的设计方法。最后，构建并测试了原型电机。理论分析和实验结果验证了所提出的设计方法和V-FMPM电机的有效性和合理性。