内置式永磁同步电机方案对比研究  

A Comparative Study on the Schemes of Built-in Permanent Magnet Synchronous Motor

作　　者：刘玥汐 项渝 叶才勇[1] 秦岭 Liu Yuexi;Xiang Yu;Ye Caiyong;Qin Ling(Huazhong University of Science and Technology,Wuhan 430000,China;Jiangsu Huayuan Explosion-Proof Motos Co.,Ltd.,Taizhou 225300,China)

机构地区：[1]华中科技大学,湖北武汉430000 [2]江苏华源防爆电机有限公司,江苏泰州225300

出　　处：《防爆电机》2021年第4期1-4,共4页Explosion-proof Electric Machine

基　　金：国家重点研发计划政府间重点专项支持(2018YFE0100200)。

摘　　要：随着电动汽车市场发展,整车厂对驱动电机性能提升和成本降低的要求越来越高。在传统的8极48槽电动汽车用永磁同步电机方案基础上,对比分析了8极36槽永磁电机结构。该方案定子采用单双层正弦绕组结构,转子采用"U一"型永磁体排布结构。同时,文章对两种方案的空载性能、转矩性能、转矩脉动、效率、温升以及材料用量等方面进行了比较。结果表明,优化方案的转矩脉动明显降低,扩速性能更好,且永磁材料用量更少,有效降低了制造成本。With the development of the electric vehicle market, Original Equipment Manufacturers(OEMs) have increasingly higher requirements for the performance improvement and cost reduction of drive motors. Based on the scheme of traditional 8-pole 48-slot PMSM for electric vehicles, this paper compares and analyzes the structure of 8-pole 36-slot PMSM. In this scheme, the stator adopts a single-and double-layer sine winding structure, and the rotor adopts a "U one" type of permanent magnets arrangement structure. At the same time, the paper compares the two schemes in aspect of no-load performance, torque performance, torque ripple, efficiency, temperature rise and material consumption. The results show that the torque ripple of the optimized scheme is significantly reduced, the speed expansion performance is better, and the consumption of permanent magnet material is less, which effectively reduces the manufacturing cost.

关 键 词：永磁同步电机 单双层混合绕组 双层磁障永磁体分布 

分 类 号：TM351[电气工程—电机]