This article proposes a hybrid evaluation method of electromagnetic force and vibration for electrical machines considering high-frequency current harmonics caused by the inverter. First, the permeance and armature magnetomotive force (MMF) is calculated based on the virtual MMF and the slot matrix. Then, the air-gap flux density and electromagnetic force construction process under arbitrary current is thoroughly studied. The vibration transfer function is obtained by utilizing the modal analysis and the modal test. Finally, the vibration can be calculated according to the modal superposition method. By applying this method to an interior permanent magnet machine, it can significantly reduce the computation efforts compared with the multiphysics procedure due to the extensive use of the finite-element method. In addition, the accuracy of this method is validated by conducting an experimental study.

中文翻译：

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一种考虑高频电流谐波的电机电磁振动混合计算方法

本文提出了一种考虑逆变器引起的高频电流谐波的电机电磁力和振动混合评价方法。首先，基于虚拟MMF和槽矩阵计算磁导和电枢磁动势（MMF）。然后，深入研究了任意电流下的气隙磁通密度和电磁力构建过程。利用模态分析和模态试验得到振动传递函数。最后，可以根据模态叠加法计算振动。通过将这种方法应用于内置式永磁电机，由于有限元法的广泛使用，与多物理场程序相比，它可以显着减少计算量。此外，