摘要
针对高功率密度永磁同步电机存在的温升问题,通过磁热耦合仿真分析得到电机的温升分布,并对其进行结构优化。利用Ansoft Maxwell软件仿真得到电机的热源损耗。基于CFD软件对电机单水道模型进行仿真分析,得到电机的稳态温升分布情况,搭建相关试验平台,验证仿真的可信性。设计了轴向、平行、螺旋3种双水道结构的电机三维模型,热仿真后进行综合对比分析。结果表明,双水道结构的冷却效果整体优于单水道结构。
Aiming at the temperature rise problem of high power density permanent magnet synchronous motors,the temperature rise distribution of the motor is obtained by magnetic-thermal coupling simulation analysis,and its structure is optimized.First,Ansoft Maxwell software is used to simulate the heat source loss of the motor.Based on CFD software,the motor single channel model is simulated and analyzed,the steady-state temperature rise distribution of the motor is obtained,and the relevant experimental platform is built to verify the credibility of the simulation.Three-dimensional models of motors with three dual-channel structures,axial,parallel,and spiral,are designed,and the temperature rise results and speed vector diagrams of the motors under different structures are obtained by thermal simulation,and comprehensive comparative analysis is performed.The results show that the overall cooling effect of the dual-channel structure is better than that of the single-channel structure.
作者
李晓艺
LI Xiaoyi(Shaanxi Industrial Vocational and Technical College,Xianyang,Shaanxi,712000,China)
出处
《小型内燃机与车辆技术》
2021年第2期62-66,共5页
Small Internal Combustion Engine and Vehicle Technique
关键词
永磁同步电机
磁热耦合
双水道结构
Permanent magnet synchronous motors
Magnetic-thermal coupling
The dual-channel structure
