辅磁同步磁阻电动机低转矩脉动下转子结构优化  

Torque Ripple Reduction in PM Assist Reluctance Machines Optimizing Rotor Structure

作　　者：代希杰 张广明[1] 邓歆[1] DAI Xi-jie;ZHANG Guang-ming;DENG Xin(Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]南京工业大学,南京211816

出　　处：《微特电机》2018年第10期15-18,共4页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51507078);江苏省教育厅高校自然科学基金项目(15KJB470006);江苏省自然科学基金项目(KYZZ16_0236)

摘　　要：为获得永磁辅助同步磁阻电动机(PMaSynRM)高质量转矩和低转矩脉动,主要对电机转子的几何结构进行设计与优化,展现了一种新的电机设计概念和运行模型。对磁障段内多段永磁体的宽度和磁障间软磁材料宽度通过d,q轴的气隙磁势基波分量及其相应的磁通量分布来实现,通过改变磁障夹角,获得最优化转矩脉动与转矩质量。最后运用等效磁路法预测开路气隙磁通密度分布,通过有限元分析模拟得以验证。In order to obtain the PM assist synchronous reluctance motor(PMaSynRM)low torque ripple and high quality torque,design and optimization of the main geometric structure of the motor rotor were conducted,a new design concept and operation model of motor was presented.The magnetic barrier period of multi segment permanent magnet width and the magnetic barrier between soft magnetic material width were achieved through the air gap magnetic potential funda-mental component d and q axis and its flux distribution,the optimum torque ripple and torque quality were obtained by changing the magnetic barrier angle.The equivalent magnetic circuit method was used to predict the open air gap flux den-sity distribution,which was verified by the finite element analysis(FEA)simulation.

关 键 词：永磁辅助同步磁阻电动机 电机设计 低转矩脉动 最优化 有限元分析 

分 类 号：TM351[电气工程—电机] TM352