静态偏心故障对开关磁阻电机电磁特性的影响  

Influence of static eccentricity fault on electromagnetic characteristics of switched reluctance motor

作　　者：张京军[1] 邬占川 张海军[1] 高瑞贞[1] ZHANG Jingjun WU Zhanchuan ZHANG Haijun GAO Ruizhen(School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, Chin)

机构地区：[1]河北工程大学机械与装备工程学院,河北邯郸056038

出　　处：《中南大学学报（自然科学版）》2016年第10期3347-3353,共7页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(11272112)~~

摘　　要：针对电机的静态偏心故障问题,首先对静态偏心对电机气隙长度、气隙磁导、磁链和静态转矩的影响进行理论分析。然后,利用有限元软件建立1台8/6极SR电机样机的二维有限元模型。考虑转子偏心故障方向和偏心率,对SR电机不同偏心故障状态和无偏心状态下的磁通线分布、磁链-角度位置特性以及电机转矩-角度位置特性等进行有限元分析。研究结果表明:电机转子偏心故障方向与偏心率都会对SR电机的性能产生显著影响,其绕组磁链可以作为诊断SR电机偏心故障方向和偏心率的重要参数。To analyze the static eccentricity fault of the switched reluctance motor（SRM）,the effects of static eccentricity fault on the air gap length, air gap permeance, flux-linkages and static torque of motor were studied in theory. Then, the two-dimensional finite element model for an 8/6 SRM prototype was established by using a finite element software. Considering the directions and the degrees of eccentricity fault of motor, the flux lines distribution, flux-linkage/rotor angular position characteristic and torque/rotor angular position characteristic were analyzed under healthy and different eccentricity faulty conditions of the SRM by the finite element method. The results show that both the direction and the degree of eccentricity fault have significant impacts on the performance of SRM. And the flux-linkage can be introduced as an important diagnostic parameter for detecting the eccentric direction and eccentric ratio in SRM.

关 键 词：开关磁阻电机 静态偏心 有限元分析 电磁特性 

分 类 号：TM352[电气工程—电机]