Active disturbances rejection control of hot strip rolling looper systems
WANG Li-jun
YU Miao
LI Qing
YIN Yi-xin
Abstract：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.
Keywords：looper systemmechanism modelingactive disturbances rejection controldecoupling
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 407-413 )