基于二阶滑模的永磁同步电机抗负载扰动控制研究  

Research on Anti-Load Disturbance Control of Permanent Magnet Synchronous Motor Based on Second-Order Sliding Mode

作　　者：苗敬利[1] 马晨浩 MIAO Jing-li;MA Chen-hao(School of Information and Electrical Engineering,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038

出　　处：《机械工程与自动化》2022年第2期14-17,共4页Mechanical Engineering & Automation

基　　金：河北省自然基金重点项目(E201940436)。

摘　　要：为提高永磁同步电机(表贴式)的控制性能和抗负载扰动能力,设计了一种基于滑模的速度控制器以提高系统的稳定性和快速性,该速度滑模控制器采用积分型滑模面,并进行了收敛性证明。提出了一种滑模负载观测器,采用饱和函数sat替换切换函数sign,并对转速环电流补偿,以降低扰动对电机转速的影响。通过仿真以及实验验证,提出的控制方法能够改进电机的快速响应,鲁棒性强,且比比例积分(PI)控制器具有更良好的动态性能。In order to improve the control performance and anti-load disturbance capability of permanent magnet synchronous motor(surface mount type),a speed controller based on sliding mode is designed to improve the stability and rapidity of the system.The velocity sliding mode controller adopts an integral sliding mode surface,and its convergence is proved.A sliding mode load observer is proposed,which replaces the switching function sign with the saturation function sat,and compensates the speed loop current to reduce the influence of disturbance on the motor speed.Through simulation and experimental verification,the control method in this paper can improve the fast response of the motor,has strong robustness,and has better dynamic performance than the proportional-integral(PI)controller.

关 键 词：滑模速度控制器 永磁同步电机 二阶滑模 

分 类 号：TM341[电气工程—电机]