Title :
Gauge and tension control system for hot strip finishing mill
Author :
Miura, H. ; Nakagawa, S. ; Fukushima, S. ; Amasaki, J.
Author_Institution :
Div. of Syst. Eng., Sumitomo Metal Ind. Ltd., Wakayama, Japan
Abstract :
In this paper, a gauge and strip tension control system for a hot strip finishing mill based on the optimal regulator theory is presented. In hot strip finishing rolling, there exists a mutual interaction between gauge and strip tension control. Since the conventional control system, which consists of single-input and single-output controllers, is limited in improving the control performance, a multivariable control is introduced. First, a mathematical model of the gauge and strip tension control system is derived. Then, in order to improve the control performance, a multivariable compensator based on the optimal regulator theory is designed. It is shown by simulation studies and experimental results that the new control system with a multivariable compensator is effective for improving gauge and tension control accuracy
Keywords :
compensation; hot rolling; mechanical variables control; multivariable control systems; optimal control; process control; steel industry; gauge control system; hot strip finishing mill; mathematical model; multivariable compensator; multivariable control; optimal control; steel industry; strip tension control system; Automatic control; Control system synthesis; Control systems; Finishing; Mathematical model; Metals industry; Milling machines; Strips; Thickness control; Torque control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339033
