永磁同步电动机温度场分析  

Temperature Field Analysis of PMSM

作　　者：田新昊 王亚光 Tian Xinhao;Wang Yaguang(Zhejiang Mechanical and Electrical Products Quality Testing Office Co.,Ltd.,Hangzhou 311300,China)

机构地区：[1]浙江省机电产品质量检测所有限公司,浙江杭州311300

出　　处：《防爆电机》2025年第2期24-28,共5页Explosion-proof Electric Machine

摘　　要：永磁同步电动机是以电磁场为介质将电能转化为机械能的装置,不过在能量转换过程中会有部分能量转化成热能,使得电动机温度升高,会缩短绝缘使用寿命,严重时会使永磁体失磁,影响电机运行安全。现选用水冷散热方式,合理设计电机冷却系统不仅可以降低电机温度,还可以减少电机的尺寸重量。需要对永磁同步电动机进行温升分析,确定电机在额定状态下的各部分损耗,基于流体力学和传热学理论对电机冷却水道设计,用有限元分析方法选取最佳冷却结构。The PMSM is a device that takes the electromagnetic field as a medium to convert electrical energy into mechanical energy.However,some energy will be converted into heat energy in the process of energy conversion,which will increase the temperature of the motor,shorten the service life of the insulation material,cause the permanent magnet to lose magnetism in severe cases,and then affect the operation safety of the motor.This paper adopts the water-cooled heat dissipation method to reasonably design the cooling system of the motor,which not only can reduce the temperature of the motor,but also can reduce the size and weight of the motor.The temperature rise of PMSM should be analyzed to determine each part loss of the motor in the rated state.The cooling water channel should be designed based on fluid mechanics and heat transfer theory,and the best cooling structure should be selected by finite-element analysis method.

关 键 词：永磁同步电动机 水冷散热 有限元分析 

分 类 号：TM351[电气工程—电机]