基于无速度传感器的永磁同步电机反步控制设计与仿真  

Design and Simulation of the Backstepping Control for Permanent Magnet Synchronous Motor Based on Sensorless Technology

作　　者：余跃 邓弘志 Yu Yue;Deng Hongzhi(CISDI Information Technology(Chongqing)Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]中冶赛迪信息技术(重庆)有限公司,重庆401122

出　　处：《机电工程技术》2024年第5期252-256,共5页Mechanical & Electrical Engineering Technology

摘　　要：给定信号和外部负载的扰动对永磁同步电机的输出有着不可忽略的影响,为提高永磁同步电机在多种工况条件下的稳定性,采用先进控制算法对提高系统的控制效果具有重要意义。文中采用反步控制与无速度传感器相结合设计了一种新的控制策略,该方法利用了反步控制全局稳定性好,动、静态性能优良的特点,可以有效抑制负载变化带来的扰动,同时系统采用扩展卡尔曼滤波器进行相关过程参数的辨识,为控制器提供电机的当前运行状态。对所提出的永磁同步电机控制系统进行了数学模型推导,并且通过MATLAB进行了仿真实验。仿真结果表明,与传统的反步控制系统相比,所提出的无速度传感器永磁同步电机驱动系统能更有效地控制电机的转速,具备良好的动、静态特性和鲁棒性。The disturbance of given signals and external loads has an undeniable impact on the output of permanent magnet synchronous motor.To improve the stability of permanent magnet synchronous motor under various operating conditions,adopting advanced control algorithms is of great significance in improving the control effectiveness of the system.In this paper,a new control strategy is designed by combining backstepping control and sensorless control.This method takes advantage of the characteristics of backstepping control,such as good global stability,excellent dynamic and static performance,which can effectively suppress the disturbance caused by load changes.At the same time,the system uses an extended Kalman filter to identify the relevant process parameters,providing the controller with the current operating state of the motor.The mathematical model of the permanent magnet synchronous motor control system was derived in the article,and simulation experiments were conducted using MATLAB.The simulation results show that compared with traditional backstepping control systems,the permanent magnet synchronous motor drive system with sensorless can control the motor speed effectively,and has good dynamic and static characteristics and robustness.

关 键 词：永磁同步电机 反步控制 无速度传感器 

分 类 号：TM341[电气工程—电机]