热连轧活套系统的自抗扰控制  

Active disturbances rejection control of hot strip rolling looper systems

作　　者：王丽君[1,2] 余苗[1,2] 李擎 尹怡欣[1,2] WANG Li-jun;YU Miao;LI Qing;YIN Yi-xin(School of Automation&Electrical Engineering,University of Science and Technology Beijing,Beijing 100083,China;Key Laboratory of Knowledge Automation for Industrial Processes,Ministry of Education,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学自动化学院,北京100083 [2]北京科技大学工业过程知识自动化教育部重点实验室,北京100083

出　　处：《控制理论与应用》2018年第3期407-413,共7页Control Theory & Applications

基　　金：中央高校基本科研业务费专项资金(FRF–BR–15–066A;FRF–BD–16–005A);中国科学院自动化研究所复杂系统与智能科学重点实验室开放课题(20160103);北京市重点学科共建项目(XK100080537)资助~~

摘　　要：鉴于热连轧活套系统的典型特性:多变量、非线性和强耦合,使其控制相对复杂.采用角变化法得出张力力矩表达式,并通过对活套套量和张力力矩关系式进行增量化,得出活套系统数学模型.采用自抗扰控制技术,应用扩张状态观测器实时估计扰动,将活套套量和张力的耦合归结于对系统的"总扰动"的一部分进行估计并给予补偿.仿真表明,相比于PID控制算法,此算法具有可行性和有效性.From the control point of view,the hot strip rolling looper system has the characteristics of multivariable,nonlinear and strong coupling,which make the looper control complex.The expression of tension moment is obtained by the angle variation method,and the looper system mathematical model is obtained with the incremental of loop and tension torque relationship.In order to estimate the disturbance in real time,the extended state observer(ESO)of the active disturbances rejection controller(ADRC)is used.In addition,the coupling of the looper height and tension dues to a part of the”disturbance”which is estimated and compensated in the system.Compared with PID control algorithm,simulations show that the ADRC is more feasible and effective.

关 键 词：活套系统 机理建模 自抗扰控制 解耦 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]