混合励磁同步电动机转矩脉动分析与优化  

Analysis and Optimization of Torque Ripple for Hybrid Excited Synchronous Motor

作　　者：夏永洪[1] 蒋华胜[1] 仪轩杏 XIA Yong-hong;JIANG Hua-sheng;YI Xuan-xing(Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学,南昌330031

出　　处：《微特电机》2018年第5期9-13,共5页Small & Special Electrical Machines

基　　金：国家自然科学基金资助项目(51367013);江西省杰出青年人才计划项目(20162BCB23011);江西省自然科学基金资助项目(20161BAB206125);江西省重点研发计划项目(20161BBE50054);南昌大学研究生创新专项资金项目(CX2017192)

摘　　要：针对混合励磁同步电动机在运行过程中存在转矩脉动的问题,采用气隙磁导法和虚位移法从理论上推导了转矩脉动产生机理,并分析了引起转矩脉动的主要因素。借助有限元仿真软件,建立了一台混合励磁同步电动机模型,从电枢绕组、定子斜槽和极弧系数3方面对该电动机的转矩脉动进行了优化,综合3种优化措施对电动机额定和弱磁运行工况进行了仿真。结果表明:提出的优化措施对混合励磁同步电动机额定运行和弱磁运行工况下的转矩脉动削弱效果明显,为混合励磁同步电动机的设计提供参考。Based on the torque ripple during the operation of hybrid excited synchronous motor（ HESM）,the mechanism of torque ripple was deduced theoretically by using air-gap permeace method and virtual displacement method,and the main influencing factors of torque ripple were analyzed. A HESM model was established by using finite element simulation software,the HESM was optimized from three aspects including armature winding,stator chute and pole-arc coefficient. At last,the three kinds of optimization measures were combined to simulate the rated operation and field weakening operation conditions of the motor. The results show that the proposed optimization measures have obviously weakened the torque ripple under the rated operation and the field weakening operation of the motor,which can provide reference for the design of HESM.

关 键 词：混合励磁同步电动机 转矩脉动 气隙磁导法 虚位移法 

分 类 号：TM341[电气工程—电机]