Title :
On LADRC in hydraulic looper decoupling control system
Author :
Guo Qiang ; Zhang Hui ; Zong Shengyue ; Zhang Bo
Author_Institution :
Nat. Eng. Res. Center for Adv. Rolling, Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
In this paper, the control mechanism and mathematical model of lopper´s height and rolling tension is discussed. A practical time-domain decoupling strategy, based on diagonal matrix decoupling control framework is proposed. And, the linear active disturbance rejection control (LADRC) is introduced to improve the performance of the closed-loop system. With proposed method, it is shown that the decoupling control system based on LADRC has a strong robustness to external disturbances, and a better control performance is obtained, compared with PID control strategy.
Keywords :
closed loop systems; control system synthesis; hydraulic control equipment; linear systems; matrix algebra; robust control; time-domain analysis; LADRC; closed-loop system; control mechanism; diagonal matrix decoupling control framework; hydraulic looper decoupling control system; linear active disturbance rejection control; lopper height; mathematical model; rolling tension; time-domain decoupling strategy; Control systems; Couplings; Mathematical model; Strips; Torque; Transfer functions; Valves; Hydraulic looper; LADRC; diagonal Matrix decoupling;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
