电工技术学报2017，Vol.32Issue(19)：41-51,11.DOI:10.19595/j.cnki.1000-6753.tces.161355
基于比例积分-准谐振控制器的直驱式永磁同步电机转矩脉动抑制方法
Torque Ripple Suppression Method of Direct-Drive Permanent Magnet Synchronous Motor Based on Proportional-Integral and Quasi Resonant Controller
摘要
Abstract
Influenced by the nonlinear characteristics of inverter,the air gap flux harmonics and other factors,the stator current of permanent magnet synchronous motor contains a lot of high order harmonic currents,which results in the motor generating harmonic torque ripple.The torque ripple is more serious for direct-drive system.Focused on the problem,a new control method of suppressing the torque ripple based on proportional-integral and quasi-resonant controller is proposed.Because the gain of the ideal resonant controller is infinity great at the resonant frequency,zero steady state error control can be achieved for sinusoidal signal of the resonant frequency.By connecting the resonant controller in parallel with the current loop proportional-integral controller and compensating the harmonic currents,the current waveform can be improved and the torque ripple can also be suppressed with it.The validity and effectiveness of the proposed method are demonstrated by simulation and experimental results.关键词
直驱式永磁同步电机/转矩脉动/谐波电流/比例积分控制/谐振控制Key words
Direct-drive permanent magnet synchronous motor(DD-PMSM)/torque ripple/harmonic current/proportional-integral(PI) control/resonant control分类
信息技术与安全科学引用本文复制引用
张海洋,许海平,方程,熊聪..基于比例积分-准谐振控制器的直驱式永磁同步电机转矩脉动抑制方法[J].电工技术学报,2017,32(19):41-51,11.基金项目
中国科学院院地合作项目资助(YDJDBSH-2012-002). （YDJDBSH-2012-002）
