永磁电机在额定负载时转子温度场分析

Analysis of Rotor Temperature Field Under the Permanent Magnet Motor Rated Load

根据永磁电动机的结构特点,在基本假设的基础上,建立了永磁电动机转子二维温度场求解模型。通过温度场微分方程的建立以及各类边界条件的给定,特别是相应的损耗、散热系数的确定。采用有限元法对永磁电动机转子二维温度场进行数值求解,并将数值计算结果和实验数据进行了对比研究,佐证了本研究所采用的研究方法的合理性以及求解域确定的正确性。

According to the structural characteristics of permanent magnet motor , on the basis of the basic assumptions , we es-tablished a two-dimensional temperature field solving model .for the permanent magnet motor rotor By establishing the differential equation of temperature field and all kinds of boundary conditions given , especially the determination of the corresponding loss , co-efficient of heat transfer .The numerical solution of two -dimensional temperature field of the permanent magnet motor rotor is pro-vided comparing the results of numerical calculation and experimental data .This paper adopted the research methods of supporting the rationality and validity as determined by the solution domain .