轴向分段式双爪极永磁电机设计与分析  

Design and Analysis of Axially Segmented Double Claw Pole Permanent Magnet Motor

作　　者：宋成龙 陆艳君 安辉[1] 邓文宇 齐丽君 安跃军[1] SONG Chenglong;LU Yanjun;AN Hui;DENG Wenyu;QI Lijun;AN Yuejun(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China;KINGSEMI Co.,Ltd.,Shenyang 110169,China;Shenyang General Magnetic Co.,Ltd.,Shenyang 110179,China)

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110870 [2]沈阳芯源微电子设备股份有限公司,辽宁沈阳110169 [3]沈阳中北通磁科技股份有限公司,辽宁沈阳110179

出　　处：《电机与控制应用》2024年第6期107-115,I0001,共10页Electric machines & control application

基　　金：辽宁省“揭榜挂帅”科技计划项目(2023JH1/11100010)。

摘　　要：永磁同步电机在高频率工况时,定、转子铁心损耗和永磁体涡流损耗都会增加,使电机温度升高,从而导致绝缘老化、永磁体退磁等。为了解决高频损耗增加的问题,设计了一台定、转子铁心材料均为软磁复合材料的轴向分段式爪极定子、单段式爪极转子的双爪极电机。类似于双凸极结构会出现转矩脉动过大的问题,采用转子磁极偏移和定子斜极相结合的方式降低转矩脉动。最后,对电机的电磁设计和温度分布进行分析,验证设计的合理性。对于爪极参数的选取,研究主要尺寸比、极弧系数、转子磁极偏移距离和定子斜极角度对双爪极电机的气隙磁密、空载反电动势、转矩及转矩脉动的影响。When the permanent magnet synchronous motor is under high frequency conditions,the core loss of the stator and rotor and the eddy current loss of the permanent magnet will increase,which will increase the temperature of the motor,resulting in insulation aging and permanent magnet demagnetization.In order to solve the problem of increasing loss at high frequency,a double claw pole motor with axially segmented claw pole stator and single-stage claw pole rotor with soft magnetic composite materials for stator and rotor core materials is designed.Similar to the problem of excessive torque ripple in the double-salient structure,a combination of rotor magnetic pole offset and stator oblique pole to reduce torque ripple is used.Finally,the electromagnetic design and temperature distribution of the motor are analyzed to verify the rationality of the design.For the selection of claw pole parameters,the effects of the main size ratio,polar arc coefficient,rotor magnetic pole offset distance and stator oblique pole angle on the air gap magnetic density,no-load back electromotive force,torque and torque ripple of the double claw pole motor are studied.

关 键 词：双爪极电机 电磁设计 转矩脉动 温度分析 

分 类 号：TM351[电气工程—电机]