电工技术学报2018，Vol.33Issue(1)：48-54,7.DOI:10.19595/j.cnki.1000-6753.tces.162033
车用爪极发电机转子极爪倒角对电磁振动的影响研究
Influence of Rotor Claw Chamfer on Electromagnetic Vibration of Automotive Claw Pole Alternator
摘要
Abstract
This paper describes the influence of rotor claw chamfer on power generation capacity and electromagnetic vibration of automotive claw pole alternator. Firstly, 3D finite element model (FEM) of claw pole alternator was established and its accuracy was validated by back-electromotive force (back-EMF) test. Then, the magnetic force harmonics which mainly cause the electromagnetic vibration of claw pole alternator was identified with the help of 2D Fourier transform of magnetic force. What's more, the influence of rotor claw chamfer on power generation capacity and magnetic force harmonics was analyzed. Finally, a multiphysics simulation model for predicting the electromagnetic vibration of claw pole alternator was established and the influence of rotor claw chamfer on electromagnetic vibration was analyzed. Results show that rotor claw chamfer would almost not decrease the power generation capacity but can greatly reduce the amplitude of magnetic force harmonics and the electromagnetic vibration of claw pole alternator. Rear chamfer is better than front chamfer on vibration reduction.关键词
爪极发电机/电磁振动/转子极爪倒角/电磁力/空间阶次Key words
Claw pole alternator/electromagnetic vibration/rotor claw chamfer/electromagnetic force/spatial order分类
信息技术与安全科学引用本文复制引用
吴双龙,左曙光,钟鸿敏,张耀丹,孙罕..车用爪极发电机转子极爪倒角对电磁振动的影响研究[J].电工技术学报,2018,33(1):48-54,7.基金项目
国家自然科学基金(51375343)和国家重大科学仪器开发专项(2012YQ150256)资助项目. （51375343）
