轴向磁通永磁电机热系统设计与分析

The thermal system design and analysis for axial flux PMSM

利用有限元法对轴向磁通永磁电机进行电磁场、流场和温度场的多场耦合分析计算。通过与多次不同测试点的实测温度值对比,给出同类型电机导热系数的选取范围。同时改变电机冷却条件,得到不同水流量下对应电机的最大出力和温升变化曲线,为同类型电机的设计提供了参考依据。

The coupled analysis of multi-fields such as electromagnetic,fluid and temperature fields of axial flux PMSM has been carried out using finite element method.The range of thermal conductivity is established by comparing the temperature values measured at different test points.Finally,the curves of the maximal output powers and temperature rise corresponding to different liquid volume are obtained with the change of freezing condition of motor,which could be referred to in the design of the same kind of motor.