磁悬浮开关磁阻电动机转子径向偏心时的仿真

磁悬浮开关磁阻电动机结合了开关磁阻电动机和磁轴承的特点,通过电磁力控制转子径向位置。分析了磁悬浮开关磁阻电动机悬浮力和旋转力的产生原理。基于开关磁阻电动机转子的四个特殊位置,利用二维有限元方法分析了转子位于中心位置与有径向偏心时的电机内部磁场,给出了磁场分布图、径向悬浮力与径向偏心矩的关系曲线、旋转力与径向偏心矩的关系曲线,为进一步描述磁悬浮开关磁阻电动机悬浮力与旋转力的模型提供了依据。

Analysis and Simulation of Bearingless Switched Reluctance Motor Having Rotor's Radical Displacement

Bearingless switched reluctance motor,which had combined characteristics of switched reluctance motors and magnetic bearings,controled rotor radical positions with magnetic force.The production of the radical suspending force and the torque in a reluctance motor with magnistor was analyzed.Based on the four especial positions of rotor in a switched reluctance motor,the magnetic field in the motor was obtained employing the finite element method when rotor was in the center and has the radical displacement.Flux distribution, the relationships between the radical suspending force and the radical displacement and between the torque and the radical displacement were obtained,which laid a foundation for describing the models of radical suspending force and torque in a reluctance motor with magnistor.