一种新型双层绕组无铁心永磁直线电机的优化设计  

Optimization Design of a Novel Double-layer Winding Ironless Permanent Magnet Linear Motor

作　　者：梅威虎 卢琴芬[1] MEI Weihu;LU Qinfen(College of Electrical Engineering,Zhejiang University,Hangzhou 310027, China)

机构地区：[1]浙江大学电气工程学院

出　　处：《微电机》2019年第5期1-5,38,共6页Micromotors

摘　　要：为了提高推力密度,提出一种新型双层绕组无铁心永磁直线电机(DW-IPMLM),其磁极采用Halbach结构,电枢双层绕组的每层为端部非重叠集中绕组,双层叠置后的绕组系数能与端部重叠的分布绕组相接近。首先,介绍了一种9线圈6磁极新型DW-IPMLM的拓扑模型,随后采用遗传算法优化设计了其结构参数。通过对比不同槽极配合结构的绕组系数,表明提出的9线圈无铁心DW-IPMLM采用6个磁极具有最好的电磁性能。最后,制造了样机来验证分析结果。结果表明,提出的DW-IPMLM避免了端部重叠分布绕组复杂的端部结构,不仅缩小了电机体积,而且有效提升了推力密度。A novel double-layer winding permanent magnet ironless linear motor (DW-IPMLM) with Halbach magnet was proposed in order to achieve high thrust force density. To each layer,the end non-overlapping concentrated windings were adopted. After two layers stacked,the wind factor can be high as that of end overlapping distribute windings. Firstly,the topology of this proposed DW-IPMLM with 9-coils/6-poles was introduced,and then the structure parameters were optimized with Genetic algorithm (GA). By analyzing the winding factor of different coil/pole combination structure,the proposed DW-IPMLM with 9 coils was proved to have best electromagnetic performance adopting 6 poles. Finally,the prototype was manufactured to validate the predicted results. The results show this proposed DW-IPMLM can avoid the complicate winding end of distribute windings,which not only decreases the motor volume,but also achieve high thrust force density.

关 键 词：无铁心 PMLM 双层绕组 Halbach磁极 绕组系数 推力密度 

分 类 号：TM359.4[电气工程—电机]