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

fYear

2013

fDate

26-28 July 2013

Firstpage

8412

Lastpage

8416

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2013 32nd Chinese

Conference_Location

Xi´an

Type

conf

Filename

6640928