Title :
Research on Predictive Functional Control in Flatness Feedback Control System of Hot Tandem Rolling
Author :
Liu Tian-wu ; Yang Quan ; He An-rui ; Xiao-Zhong, Du ; Sun Wen-quan ; Wang Xiao-chen ; Zhang Yun
Author_Institution :
Nat. Eng. Res. Center for Adv. Rolling Technol., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
Currently in the flatness feedback control of hot strip mill it mainly adopts conventional PID controller, the parameters of which are often designed to a kind of situation and are invariable, so it is difficult to keep flatness well in hot tandem rolling. On the base of analyzing the shape generation theory and model prediction control theory, the flatness control system by adjusting last stand bending force is designed using predictive functional control. The predictive functional control with small on-line computation can arrive to enhance the precision of the flatness control. The simulation results of the flatness control system indicate that the system´s dynamic response performance is advanced observably, and it also has more favorable characteristics than using conventional PID controller.
Keywords :
control system synthesis; feedback; hot rolling; predictive control; rolling mills; strips; three-term control; PID controller; flatness feedback control system; hot strip mill; hot tandem rolling; last stand bending force adjustment; model prediction control theory; predictive functional control; shape generation theory; Feedback control; Prediction algorithms; Predictive models; Servomotors; Shape; Strips; Feedback Control; Flatness; Hot Tandem Rolling; Predictive Functional Control;
Conference_Titel :
Computational Aspects of Social Networks (CASoN), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-8785-1
DOI :
10.1109/CASoN.2010.113
