广域高效车用轴向磁通永磁同步电机的设计分析.pdf

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第 25 卷　 第 3 期 电 　 机to extend the endurance of the EVs, the high efficiency of the energy
conversion of the driving motor in the whole speed-torque region should be improved. The proportion of
high-efficiency areas to the whole operation area (PHTW) was proposed as a design objective of the axial
flux permanent magnet synchronous machine for EVs. An engineering calculation method of core loss cal-
culation method considering the PWM influence was presented. Based on equivalent magnetic network
method and lumped parameter thermal network method, a fast magnetic-thermal coupling design model of
axial flux permanent magnet synchronous machine (AFPMSM) was constructed, which improves the de-
sign accuracy of AFPMSM for EVs. Based on the magnetic-thermal coupling model, the influence of pole-
arc coefficient, number of conductors per slot, air gap length, permanent magnet size and stator slot size
on the PHTW of AFPMSM were analyzed. A prototype was designed and manufactured, and the test ex-
收稿日期
: 2020 - 02 - 22
基金项目:重庆理工大学科研启动基金( );重庆市科技产业类重大主题专项重点研发项目( );重庆市基础与
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前沿研究探索项目( )
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作者简介:沈启平( —),男,博士,讲师,研究方向为电机设计及电机多物理场;
1983
陈 鑫( —),男,硕士,研究方向为永磁电机设计与热分析;
　 1995
王 丁( —),女,硕士,研究方向为永磁电机设计与热分析;
　 1994
韩 力( —),男,博士,教授,研究方向为低速大转矩永磁同步电机;
　 1963
龙 云( —),男,硕士,研究方向为电驱动系统电磁兼容。
万方数据　 1995
通信作者:沈启平第 期 沈启平等 广域高效车用轴向磁通永磁同步电机的设计分析
3 : 57
periments of motor efficiency and temperature rise were carried out. The distribution of motor efficiency