电机与控制应用2018，Vol.45Issue(2)：47-55,9.
基于四开关三相变频器的永磁同步电机驱动系统转矩脉动优化控制
Torque Ripple Optimal Control of PMSM Driving System Based on Three-Phase Four-Switch Inverter
摘要
Abstract
The permanent magnet synchronous motor driving system based on three-phase four-switch inverter had the problem of the torque ripple.Aiming at it,a torque tipple optimal control of the system was proposed.The torque tipple in the system was divided into low frequency and high frequency torque ripple.The low frequency torque tipple was generated by the voltage fluctuation of the DC capacitor,and a compensation scheme based on nonorthogonal coordinate transformation had been introduced to compensate it.For the high frequency tipple,analysis and evaluation of effects of different modulation strategies,and the optimal modulation strategy had been chosen.In addition,the linear modulation range was taken into account,and the DC capacitor voltage fluctuation of the system was considered.At the same time,an adaptive capacitor voltage offset suppression method was designed to extended linear modulation range.The experimental results showed that the new control strategy could suppress the torque tipple.关键词
永磁同步电机/三相四开关变频器/转矩脉动/空间矢量调制/电容电压波动Key words
permanent magnet synchronous motor/three-phase four-switch inverter/torque ripple/space vector modulation/capacitor voltage fluctuation分类
信息技术与安全科学引用本文复制引用
张铮,赵一心..基于四开关三相变频器的永磁同步电机驱动系统转矩脉动优化控制[J].电机与控制应用,2018,45(2):47-55,9.基金项目
吉林省省级课题(2016ZCY056) （2016ZCY056）
