基于HLADRC的汽包水位控制  

Drum Water Level Control Based on High-order Linear Active Disturbance Rejection Control

作　　者：蒲翠萍 任杰 苏剑波[2] PU Cui-ping;REN Jie;SU Jian-bo(College of Mechanical and Electrical Engineering,Kunming University,Kunming 650214,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]昆明学院机电工程学院,云南昆明650214 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《控制工程》2020年第4期635-640,共6页Control Engineering of China

基　　金：国家自然科学基金重点项目(61533012,91748120,61521063);云南省联合专项面上项目(2019FH001-069)。

摘　　要：高阶扩张状态观测器自抗扰控制(High-order Linear Active Disturbance Rejection Control,HLADRC)与传统线性自抗扰控制(Linear Active Disturbance Rejection Control,LADRC)相比,在干扰抑制方面具有很大的优势,目前有少量应用在强干扰系统中来进行干扰抑制。汽包水位系统具有强干扰、非线性、强耦合、多变量的特性,是锅炉控制的难点。以汽包水位为对象,构造汽包水位高阶扩张状态观测器自抗扰控制系统。通过与线性自抗扰控制系统对比,在外界扰动作用下和模型参数失配情况下的性能,仿真结果表明:HLADRC系统,在动态响应、干扰抑制能力方面均优于LADRC系统,且对系统模型参数变化有一定的鲁棒性。Compared with the traditional linear active disturbance rejection control(LADRC),the linear active disturbance rejection control based on high-order extended state observer(HLADRC)has great advantages in disturbance rejection.At present,there are a few applications in strong disturbance systems for disturbance rejection.The drum water level system has the characteristics of strong disturbance,non-linearity,strong coupling and multi-variable,which is the difficulty of boiler control.Taking the drum water level as an object,we constructed an active disturbance rejection control system based on high-order extended state observer for the drum water level.The performance of HLADRC and LADRC is compared under external disturbance and model parameter mismatch.The simulation results show that HLADRC system is superior to LADRC system in dynamic response and interference suppression,and it has robustness to the change of system model parameters.

关 键 词：自抗扰控制 高阶 扩张状态观测器 汽包水位 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]