The rotor topologies have a great influence on the vibration characteristics of permanent magnet assisted synchronous reluctance machines (PM-SynRMs). In this article, the vibrations of PM-SynRMs with different rotor topologies are studied and compared. First, the electromagnetic force harmonics of PM-SynRMs have been studied and the design rule about the combination of stator slots and “rotor virtual slots” is given to achieve low vibration. Then, a multiphysics model is established to calculate the vibration of the PM-SynRMs with different rotor topologies. The modal analysis is conducted through finite element method considering the orthotropic of materials and validated by the modal test. Besides, the prototype has been built and the vibration test is performed to confirm the accuracy of the vibration simulation. Based on the multiphysics model, the influence of the shapes of flux barriers and the number of “rotor virtual slots” is investigated. It proves that the design rule about the combination of stator slots and “rotor virtual slots” can achieve low vibration for PM-SynRMs.

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转子拓扑不同的永磁辅助同步磁阻电机振动特性的比较研究

转子的拓扑结构对永磁辅助同步磁阻电机（PM-SynRMs）的振动特性有很大的影响。在本文中，研究并比较了具有不同转子拓扑的PM-SynRM的振动。首先，研究了PM-SynRMs的电磁力谐波，并给出了有关定子槽和“转子虚拟槽”组合的设计规则，以实现低振动。然后，建立一个多物理场模型来计算具有不同转子拓扑的PM-SynRM的振动。模态分析是通过考虑材料的正交各向异性的有限元方法进行的，并通过模态试验进行了验证。此外，已经建造了原型并进行了振动测试，以确认振动模拟的准确性。基于多物理场模型，研究了磁通势垒的形状和“转子虚拟槽”数量的影响。事实证明，关于定子槽和“转子虚拟槽”的组合设计规则可以使PM-SynRM的振动降低。