摘要
针对电梯曳引交流永磁同步电机的特殊结构,根据传热学理论建立其电磁稳态运行条件下的三维暂态温度场的计算数学模型,给出求解域内的基本假设及相应的边界条件,根据电磁场计算,确定定子铁心与磁极区域的损耗热源分布。以某型曳引电机为例,应用有限元法计算了电机定转子额定电磁稳态工况下温度场的同时,也对电机短时过载情况下的温升进行了分析,通过把温度场数值计算的结果与实测数据相对比,验证了所建模型的合理性,为电梯曳引交流永磁同步电机的温度场计算提供了参考依据。
According to the special structure of tractive PMSM for elavator, in this paper the mathematical model of the 3D transient temperature field for the motor in the state of steady electromagnetic field is established, and basic assumptions and boundary conditions of the solved region are presented. Stator iron losses and magnet pole eddy current losses are calculated according to the electromagnetic field analysis. A type of tractive PMSM for elavator is taken for example, the stator and rotor transient temperature field is calculated using 3D finite element Method in the rated electromagnetic field condition, and the short-time over load temperature rise is also analyzed. Measurement results show that the transient temperature field caultation model is reasonable.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第10期6-11,共6页
Transactions of China Electrotechnical Society
关键词
电梯曳引PMSM
暂态温度场
损耗
三维有限元法
Tractive PMSM for elevator, transient temperature field, losses, 3D finite element method
