电液位置伺服系统高增益自抗扰控制  

High-Gain Active Disturbance Rejection Control of Electro-Hydraulic Position Servo System

作　　者：神英淇 李侃 王羽熙 司国雷 王嘉磊 SHEN Yingqi;LI Kan;WANG Yuxi;SI Guolei;WANG Jialei(Sichuan Aerospace Fenghuo Servo Control Technology Co.,Ltd.,Chengdu Sichuan 611130,China)

机构地区：[1]四川航天烽火伺服控制技术有限公司,四川成都611130

出　　处：《机床与液压》2024年第4期168-174,共7页Machine Tool & Hydraulics

摘　　要：针对电液位置伺服系统采用自抗扰控制策略时,存在因系统阶数过高导致状态观测器需观测的变量多、观测信息相位滞后以及易引起系统响应滞后及超调等问题,采用高增益自抗扰控制方案。对系统模型进行降阶处理,以简化控制器结构,减少待整定参数;在传统扩张状态观测器的基础上,进一步对系统总扰动的微分信号进行观测,观测系统扰动的变化趋势,产生有效的超前补偿信号,从而提高系统控制性能及抗扰能力。最后,通过MATLAB与AMESim进行联合仿真。结果表明:该控制方案相比于传统自抗扰控制,系统超调量降低85%,响应速度提高47.7%,并有效提高了系统抗干扰能力,具有更优良的动态及稳态性能。For the electro-hydraulic position servo system with active disturbance rejection control strategy,too high system order could lead to many variables to be observed by the state observer,phase lag of the observed information and system response lag and overshoot,a high gain active disturbance rejection control scheme was adopted.The system model order was reduced to simplify the con⁃troller structure and reduce the parameters to be adjusted.On the basis of the traditional extended state observer,the differential signal of the total disturbance of the system was further observed to observe the change trend of the system disturbance and generate effective ad⁃vance compensation signal,so as to improve the control performance and disturbance rejection ability of the system.Finally,the co-simu⁃lation was performed by MATLAB and AMESim.The results show that compared with the traditional active disturbance rejection control,the overshoot of the system is reduced by 85%,the response speed is increased by 47.7%,and the anti-interference ability of the sys⁃tem is effectively improved,which has better dynamic and steady performance.

关 键 词：电液位置伺服系统 自抗扰控制 扩张状态观测器 高增益 

分 类 号：TH137[机械工程—机械制造及自动化]