基于占空比补偿的永磁同步电机齿槽转矩抑制  

Cogging Torque Suppression of PMSM Based on Duty Cycle Compensation

作　　者：黄涛 陈庆盈 黄海波[1] Huang Tao;Chen Chin-Yin;Huang Haibo

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201 [3]浙江省机机器人与智能制造装备技术重点实验室,浙江宁波315201

出　　处：《机械制造》2023年第3期6-11,共6页Machinery

基　　金：国家重点研发计划项目(编号:2019YFB1309900);中国科学院国际合作局国际伙伴计划项目(编号:174433KYSB2019036);NSFC-深圳两化融合联合基金资助项目(编号:U1813223)。

摘　　要：永磁同步电机工作时输出的转矩出现周期性波动问题,在伺服系统对转矩和速度要求高的场合,波动所产生的影响不可忽视。对此,从电机控制角度出发,提出一种将抑制齿槽转矩波动所需的占空比补偿在矢量控制算法模型中的方法。这一方法通过测量计算电机转子旋转位置和对应位置抑制齿槽转矩所需的占空比之间的数据关系,作为额外补偿的占空比预先存储在矢量控制算法模型中,从而使电机在实际运转时齿槽转矩波动得到抑制。仿真结果表明,基于占空比补偿可以有效减小齿槽转矩波动及所产生的速度波动,改善永磁同步电机的使用性能。The torque output of the permanent magnet synchronous motor has periodic fluctuations,and the influence of fluctuation cannot be ignored in the occasion where the servo system has high requirements for torque and speed.For this,from the perspective of motor control,a method was proposed to compensate the duty cycle required to suppress cogging torque fluctuation in the vector control algorithm model.This method measures the data relationship between the rotation position of the motor rotor and the duty cycle required to suppress the cogging torque at the corresponding position,and stores the duty cycle as additional compensation in the vector control algorithm model in advance,so that the cogging torque fluctuation is suppressed during the actual operation of the motor.The simulation results show that based on the duty cycle compensation,the cogging torque fluctuation and the resulting speed fluctuation can be effectively reduced,and the performance of the permanent magnet synchronous motor can be improved.

关 键 词：永磁同步电机 齿槽转矩 占空比 补偿 抑制 

分 类 号：TM341[电气工程—电机] TM351