磁通切换永磁电机固有轴电压分析

摘要

对以磁通切换永磁(FSPM)电机为代表的定子永磁型电机固有轴电压机理进行了研究,建立了FSPM电机固有轴电压分析的2D和3D有限元模型,探讨了固有轴电压与电机结构参数之间的关系,对不同电机转速、转轴直径和材料、转子偏心度和电枢电流作用下固有轴电压的特性进行了仿真计算,最后以一台12/10极FSPM电机的实验结果验证了分析和仿真计算的正确性,为高速定子永磁电机的设计和可靠性分析奠定了基础.%The inherent shaft voltage mechanism of the stator permanent magnet (Stator-PM) machines represented by the flux-switching permanent magnet(FSPM) machine is analyzed.Both the 2D and 3D finite element analysis models are developed and simulation is carried out for different speeds,shaft structures and materials,rotor eccentricities and armature currents.Finally,the experiment on 10-rotor-pole and 12-stator-slot FSPM machine verified the correctness of analysis and simulation.The results will be helpful to design and reliability analysis of high speed permanent magnet machines.