摘要
齿槽转矩和转矩波动的降低,效率的提升,功率密度的提高一直是永磁同步电动机设计和制造中重点考虑的几个问题。通过有限元电磁仿真工具对不同磁极形状的电机进行计算分析,使产生反电势正弦性好、转矩波动小、效率高的电机为目标。本文还提出了一种介于偏心磁极和等厚磁极之间的不完全偏心磁极,仿真结果和实践表明,这种磁极结构对电机性能的优化具有一定的实用性。
The reduction of cogging torque and torque ripple,efficiency improvement,power density enhancement have always attracted attention in design and manufacturing permanent-magnet synchronous motors（ PMSM）. In order to design high-efficiency,low torque ripple motors of which the back-emf more approached to a sine wave,this paper simulated and analyzed motors with different magnet pole shapes through the finite element method（ FEM） tool. Then an incompletion eccentric magnet pole between eccentric magnet pole and equal thickness magnet pole was proposed,simulation results and practice indicated that,this new magnet pole shape revealed certain practicability in the optimal design of motor performance.
作者
唐先全
TANG Xianquan(Shenzhen Simphoenix Electric Tecnology Co.,Ltd.,Shenzhen Guangdong 518126,China)
出处
《微电机》
北大核心
2018年第5期22-24,42,共4页
Micromotors
关键词
永磁同步电动机
磁极优化
反电势
转矩波动
permanent-magnet synchronous motors
optimal design of magnet pole
back-emf
torque ripple
