开关磁阻电机转子动力学建模与分析

超高速电机和普通电机相比，在功率密度、体积重量和传动效率上具有明显的优势，在航空航天、能源、高速加工等军事和民用领域具有广泛的应用前景。由于开关磁阻电机(SRM)具有结构简单坚固，转子上无永磁体和绕组，对高温等恶劣环境适应能力强等优点，最具开发成超高速电机的潜力。转子动力学设计是旋转机械设计中的重要环节。本文计算了开关磁阻电机偏心转子在各种电流和偏心度下的不平衡磁拉力，并在此基础上提出了开关磁阻电机不平衡磁拉力特有的脉冲性。作者建立了开关磁阻电机转子动力学模型，实现离心力和电磁力的解耦，并进行了一系列的仿真，为高速开关磁阻电机的设计提供参考依据。

Modeling and Analysis of Switched Reluctance Machine Considering Rotor Dynamics

The ultra-high speed motor has many prominent advantages compared with normal motor such as power density, volume, weight, transmission efficiency and so on. As a result, it is applied widely in the field of military and civilian affairs such as aeronautics, astronautics, energy source, high speed machining and so on. The switched reluctance machine (SRM) has many good properties of simple and durable structure, no windings on the rotor, well adaptability of bad environment. So sometimes, SRM is the best project of ultra-high speed machine. The rotor dynamics design is the important step in designing rotating machine. The unbalance electromagnetic force of SRM with eccentric rotor under different currents is calculated in this paper. The impulse property of the unbalance electromagnetic force is presented. Based on the rotor dynamics model which is established by the author, a series of simulations are carried out. The results can be referenced for the design of the ultra-high speed SRM.