基于扰动转矩观测器PMSM无位置传感器控制系统  

PMSM Sensorless Control System Based on Disturbance Torque Observer

作　　者：阴建强 邬贤明 邬冯值 杨沛豪 YIN Jianqiang;WU Xianming;WU Fengzhi;YANG Peihao(Department of Electronic Information,Zhengzhou Electronic Information Secondary Professional School,Zhengzhou 450100,Henan,China;Ningbo Radio and Television Group,Ningbo 315000,Zhejiang,China;School of Information Science and Manufacturing Engineering,Ashikaga University,Ashikaga-shi 326-0845,Japan;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710054,Shaanxi,China)

机构地区：[1]郑州电子信息中等专业学校电子信息部,河南郑州450100 [2]宁波广播电视集团,浙江宁波315000 [3]足利大学信息科学与制造工程学院,日本枥木326-0845 [4]西安热工研究院有限公司,陕西西安710054

出　　处：《电气传动》2021年第6期19-24,共6页Electric Drive

基　　金：国家科技支撑计划资助项目(2015BAA03B01)。

摘　　要：使用控制算法实现永磁同步电机(PMSM)无位置传感器控制是目前电机控制领域研究热点。提出一种基于低速脉冲高频定子磁链注入的PMSM无位置传感器控制系统,并对传统定子磁链估计器进行改进,将高频信号引入低通滤波器中以提高电机低转速运行时定子磁链估计器的精度。针对PMSM中低速运行时无位置传感器控制系统易受转矩脉动影响的情况,采用扰动转矩观测器来抑制扰动转矩产生的电压误差。通过试验来验证所提方案的有效性和可行性。The sensorless control of PMSM based on control algorithm is a research hotspot in the field of motor control.A PMSM sensorless control system based on low-speed pulse and high-frequency stator flux injection was proposed,and the traditional stator flux estimator was improved and the high-frequency signal was introduced into the low-pass filter to improve the accuracy of the stator flux estimator when the motor is running at low speed.In view of the fact that the sensorless control system is easily affected by torque ripple when PMSM is running at medium and low speed,the disturbance torque observer was used to suppress the voltage error caused by the torque disturbance.The effectiveness and feasibility of the proposed scheme were verified by experiments.

关 键 词：永磁同步电机 无位置传感器 定子磁链估计器 低通滤波器 扰动转矩观测器 

分 类 号：TM33[电气工程—电机]