高真空工况下开关磁阻电机温度场分析

开关磁阻电机(SRM)因其拓扑结构简单、效率高、体积小等优点,可用于飞轮电池领域,而高真空工况下电机温度场的准确分析对飞轮系统的使用寿命和安全性能至关重要。以12/8 SRM为例搭建二维有限元分析模型,对各部件典型位置磁密进行分析,介绍了铁损的计算模型并通过有限元验证计算结果。进一步利用磁–热单向耦合方法对SRM高真空工况下的温度场分析,分析了电机各主要部件温度的分布规律,为飞轮电池用SRM的温度预估及散热设计提供参考依据。

Analysis of temperature field of switched reluctance motor under high vacuum condition

Switched Reluctance Motor (SRM) can be used in the field of flywheel batteries due to its simple topology, high efficiency and small size. The accurate analysis of the temperature field of the motor under high vacuum conditions is critical to the service life and safety performance of the flywheel system. important. Taking 12/8 SRM as an example, a two-dimensional finite element analysis model is built to analyze the typical position magnetic density of each component. The calculation model of iron loss is introduced and the calculation result is verified by finite element method. Furthermore, the magnetic-thermal unidirectional coupling method is used to analyze the temperature field of SRM under high vacuum condition, and the temperature distribution of each main component of the motor is analyzed, which provides a reference for temperature prediction and heat dissipation design of SRM for flywheel battery.