PMSM比例谐振自抗扰电流谐波抑制方法  

Current Harmonics Suppression Based on PR-ADRC for Permanent Magnet Synchronous Motor

作　　者：方淳 陈哲[2] 窦满峰[2] FANG Chun;CHEN Zhe;DOU Manfeng(AVIC The First Aircraft Institute,Xi’an 710089,China;School of Automation,Northwestern Polytechnical University,Xi’an 710129,China)

机构地区：[1]航空工业第一飞机设计研究院,西安710089 [2]西北工业大学,西安710129

出　　处：《微电机》2022年第4期34-38,共5页Micromotors

摘　　要：基于扩展状态观测器的永磁同步电机转子位置和速度估算中,由于死区效应、电气元件误差、逆变器非线性因素会产生大量的电流谐波,影响位置和速度估计精度。本文提出一种基于比例谐振与自抗扰控制的PR-ADRC电流环控制策略,可以有效抑制dq坐标系下6次电流谐波,从而降低静止坐标系下5、7次谐波含量。基于MATLAB和HiGale平台对提出方法进行仿真和实验验证,结果表明改进后的电流环降低了三相电流谐波,估算反电动势波形良好,转子位置和速度估算误差降低,无位置传感器控制系统控制精度得到提高。In the actual operation of the PMSM control system,current harmonics will be inevitably generated by dead-zone effect,electrical component error and inverter nonlinearity,which affects the estimation accuracy of position and speed.In this paper,a current control strategy based on proportional resonance and active disturbance rejection control was proposed and can effectively suppress 6 th current harmonic.The sensorless closed-loop experimental verification was carried out based on Higale platform.The results show that the proposed current loop control can effectively reduce the three-phase current harmonics,enhance the estimation accuracy of rotor position and speed estimation,and improve the performance of the sensorless control system.

关 键 词：永磁同步电机 无位置传感器控制 反电动势 自抗扰控制 

分 类 号：TM341[电气工程—电机] TM351