基于辅助槽的汽车爪极发电机电磁振动削弱方法  

Reduction of Electromagnetic Vibration for Automobile Alternator by Auxiliary Slot

作　　者：鲍晓华[1] 吴锋[1] 魏琼[1] 李佳庆[1] 杨帆[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,合肥230009

出　　处：《电工技术学报》2014年第9期161-166,共6页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(51177033;51377039)

摘　　要：探讨了在汽车发电机爪极上开辅助槽对其电磁振动的影响,采用机械阻抗法分析汽车发电机的空载电磁振动,研究了通过开辅助槽来削弱汽车发电机电磁激振力,从而降低电机的电磁振动。对一台36槽12极汽车发电机进行电磁和结构有限元仿真,利用麦克斯韦张量法分析了有无辅助槽时发电机的转矩脉动以及2阶激振力波的对比。理论分析和仿真结果表明选择合适的辅助槽能够有效的降低汽车发电机的电磁振动。This paper describes the influence of teeth notching on electromagnetic vibration of automobile claw-pole alternator.No-load electromagnetic vibration of automobile alternator is studied by mechanical impedance method.With the auxiliary slot to weaken the automobile alternator electromagnetic vibration force is discussed,so as to reduce the motor electromagnetic vibration.A 36 slots 12 poles automobile alternator is analyzed by the electromagnetic and structure finite element simulation.Maxwell tensor method is used to analyze the torque ripple and 2 order exciting force waves of the alternator with auxiliary slot or not.Theoretical analysis and simulation results show that automobile alternator electromagnetic vibration can be effectively reduced while choosing the suitable auxiliary slot.

关 键 词：汽车发电机 转矩脉动 电磁振动 定子模态分析 辅助槽 

分 类 号：TM341[电气工程—电机]