中国电机工程学报2015，Vol.35Issue(11)：2847-2853,后插24,8.DOI:10.13334/j.0258-8013.pcsee.2015.11.024
齿槽效应对永磁直线伺服电机法向力波动的影响
Influences of Cogging Effects on Normal Force Ripple in Permanent Magnet Linear Servo Motors
摘要
Abstract
There is the large normal force ripple betweenthe mover and the stator when the single-side flat-platepermanent magnet linear servo motor (PMLSM) is operating,and the friction force perturbation and the vibration of themachine tool caused by the normal force ripple will influencethe accuracy of machine tools greatly. The cogging effect ofPMLSM is one of the important factors that cause the normalforce ripple. Therefore, the normal force analytic expression ofthe infinitely long side tooth PMLSM is derived using theMaxwell tensor method, which reveals the law of the normalforce ripple caused by cogging effects. It can be known byanalyzing the Fourier decomposition coefficients that the toothtip width and the pole arc coefficient are the two main parameters impacting the normal force ripple. Using the Ansoftfinite element software, the law of the normal force ripple isanalyzed under different tooth tip widths and pole arccoefficients. The simulation results demonstrate that the normalforce ripple amplitude caused by the cogging can be effectivelyweakened by optimizing the tooth tip width and the pole arccoefficient. Simulation and analytical results are basicallyconsistent, which demonstrates the validity of the analyticalmethod for the normal force ripple.关键词
法向力波动/齿槽效应/永磁直线电机/麦克斯韦张量法/解析法Key words
normal force ripple/cogging effect/permanent magnet linear motor/Maxwell tensor/analytical method分类
信息技术与安全科学引用本文复制引用
夏加宽,沈丽,彭兵,孙宜标..齿槽效应对永磁直线伺服电机法向力波动的影响[J].中国电机工程学报,2015,35(11):2847-2853,后插24,8.基金项目
国家自然科学基金项目(51377108) （51377108）
辽宁省高等学校创新团队项目(LT2013006) （LT2013006）
国家科技重大专项子课题(2012ZX04001- 011-003). Project Supported by National Natural Science Foundation of China (51377108) （2012ZX04001- 011-003）
Program of University Innovation Team of Liaoning Province (LT2013006) （LT2013006）
Subproject of Major Projects of National Science and Technology of China (2012ZX04001-011-003). （2012ZX04001-011-003）
