高速磁悬浮电机, 定子发热模型, 转子涡流损耗, 谐波电流, 感抗器

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For high-speed magnetic levitation motor heating problem,it was established by finite element method of the motor stator heating model,which analyzed the material loss on the impact of motor stator core.Considering the friction of the rotor surface,the wind friction loss of the rotor was calculated.The harmonic currents caused by the rotor eddy current loss in high-speed magnetic levitation motor in the rotor will cause the problem of high temperature rise.The establishment of electromagnetic field equations for solving eddy current loss of rotor was obtained by analysis of the electromagnetic field equations.For the problem of rotor eddy current loss,a harmonic impedance device was used to reduce eddy current loss,which is an effective way to reduce the temperature.The results show that the impedance device can reduce motor harmonic currents and reduce the temperature effectively.