基于改进型超螺旋滑模线性自抗扰的永磁同步电机速度控制研究  

Research on PMSM Speed Control Based on Improved Super-Twisting Sliding Mode Linear Active Disturbance Rejection

作　　者：马雨新 雷子奇 顾萍萍 张为 秦海鸿[2] 赵朝会[1] MA Yuxin;LEI Ziqi;GU Pingping;ZHANG Wei;QIN Haihong;ZHAO Chaohui(Electrical Engineering College,Shanghai Dianji University,Shanghai 201306,China;College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]上海电机学院电气学院,上海201306 [2]南京航空航天大学自动化学院,江苏南京211106

出　　处：《电机与控制应用》2024年第9期103-111,I0001,共10页Electric machines & control application

基　　金：国家自然科学基金(51677089)。

摘　　要：为提升永磁同步电机调速系统中的动态响应性能和抗扰性能,提出了一种改进型超螺旋滑模线性自抗扰控制(STSM-LADRC)策略。该策略利用滑模变结构原理对LADRC中的线性扩张状态观测器(LESO)和线性状态误差反馈(LSEF)控制律进行优化。首先,设计了STSM-LESO,采用STSM控制算法对LADRC中的LESO进行改进,以提高观测器观测性能从而增强控制器的抗干扰能力;其次,利用STSM控制算法代替原有的LSEF控制律,提高控制器的动态响应性能,同时使用tanh函数替换超螺旋滑模算法中的sign函数进一步削弱滑模固有抖振,提高系统的稳定性;然后,使用李雅普诺夫理论对所提控制策略进行稳定性分析;最后,基于Matlab/Simulink仿真平台进行验证。仿真结果表明,与传统的LADRC和其他控制器相比,所提控制策略具备更好的动态响应性能和抗扰性能。To improve the dynamic response and disturbance rejection property of the permanent magnet synchronous motor(PMSM)speed regulation system,an improved super-twisting sliding mode linear active disturbance rejection control(STSM-LADRC)strategy was proposed.This strategy optimized the linear extended state observer(LESO)and linear state error feedback(LSEF)control law in LADRC using the sliding mode variable structure principle.First,the STSM-LESO was designed,where the STSM control algorithm improves the LESO in LADRC,enhancing the observing property and thus the controller's disturbance rejection property.Second,the STSM control algorithm replaced the original LSEF control law,improving the controller's dynamic response property.The hyperbolic tangent function was used instead of the sign function in the STSM algorithm to further reduce inherent sliding mode chattering and enhance system stability.The proposed control strategy was then analyzed for stability using Lyapunov theory.Finally,simulations were conducted on the Matlab/Simulink platform for validation.The results showed that the proposed strategy provided better dynamic response and disturbance rejection property compared to traditional LADRC and other controllers.

关 键 词：永磁同步电机 线性自抗扰控制 超螺旋滑模 线性扩张状态观测器 

分 类 号：TM351[电气工程—电机]