一种抑制力矩电机转矩波动的极槽数选用方法  

A Method for Selecting Pole and Slot Number to Suppress Torque Fluctuation in Torque Motor

作　　者：石宏顺 赵飞 崔浪浪 杨健康 刘刚 SHI Hongshun;ZHAO Fei;CUI Langang;YANG Jiankang;LIU Gang(Guizhou Aerospace Linquan Motor Co.,Ltd.,Guiyang 550081,China;National Engineering Research Center for Small and Special Precision Motors,Guiyang 550081,China)

机构地区：[1]贵州航天林泉电机有限公司,贵阳550081 [2]国家精密微特电机工程技术研究中心,贵阳550081

出　　处：《微特电机》2024年第5期31-34,共4页Small & Special Electrical Machines

摘　　要：低转矩波动是力矩电机实现高精度、精细化伺服动作的前提。反电动势高次谐波是引起转矩波动因素之一,推导了正弦波驱动力矩电机极槽数与反电动势高次谐波的关系,通过极槽数选用来减少反电动势高次谐波含量从而实现降低转矩波动。样机试验表明,选用可消除5次谐波的极槽组合可有效降低转矩波动。Low torque fluctuation is a prerequisite for torque motor to achieve high-precision and refined servo actions.High order harmonics of back electromotive force were one of the factors that cause torque fluctuation.The relationship between the pole and slot number in a sinusoidal drive torque motor and high order harmonics of back electromotive force was derived.By selecting appropriate pole and slot number,the content of high order harmonics of back electromotive force was reduced,thereby reducing torque fluctuation.Through motor design and prototype testing,selecting a pole and slot number with the ability to eliminate 5th harmonic can effectively reduce torque fluctuation.

关 键 词：力矩电机 转矩波动 极槽数 反电动势 高次谐波 

分 类 号：TM359.6[电气工程—电机]