电液位置伺服系统低阶自抗扰控制研究  

Researchon Eectro-Hydraulic Position Servol Systemswith Lw-Order Aoctive Disturbance Rejection Control

作　　者：张贻哲 李跃松[1] 王棒 李贵飞 ZHANG Yizhe;LI Yuesong;WANG Bang;LI Guifei(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,洛阳471003

出　　处：《组合机床与自动化加工技术》2024年第2期130-133,140,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(51605145);河南省自然科学基金项目(232300420085)。

摘　　要：电液位置伺服系统是一种时变非线性、外部扰动未知且数学模型复杂的高阶系统,对其采用的高阶自抗扰控制方法,需要整定参数较多,模型结构复杂,在实际工程应用中难以实现。针对这个问题,对电液位置伺服系统的一阶和二阶自抗扰控制(ADRC)性能进行研究,实现电液位置伺服系统的低阶自抗扰控制。基于Simulink建立的电液位置伺服系统的低阶自抗扰控制系统,给定阶跃和正弦信号指令,并对系统施加一个负载扰动力,分析系统的响应速度、准确性和抗干扰能力。结果表明,一阶和二阶自抗扰控制都可以使电液位置伺服系统达到稳定状态,且二阶非线性自抗扰控制系统响应速度更快,控制精度高,鲁棒性更强。The electro-hydraulic position servo system is a time-varying non-linear,unknown external disturbance and complex mathematical model of high-order systems,for which the high-order ADRC method requires more rectification parameters and a complex model structure,which is difficult to implement in practical engineering applications.To address this problem,the first-and second-order ADRC performance of electro-hydraulic position servo systems is investigated to achieve low-order ADRC of electro-hydraulic position servo systems.The low-order ADRC system of the electro-hydraulic position servo system is established based on Simulink,given step and sinusoidal signal commands,and a load disturbance force is applied to the system to analyze the response speed,accuracy and immunity of the system.The results show that both first-order and second-order ADRC can bring the electro-hydraulic position servo system to a steady state,and the second-order non-linear ADRC system has a faster response,higher control accuracy and greater robustness.

关 键 词：电液位置伺服系统 非线性自抗扰控制 线性自抗扰控制 物理模型 

分 类 号：TH165[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]