Title :
Advanced AGC system for cold tandem mill based on ILQ design theory
Author :
Washikita, Y. ; Ooi, T. ; Kadoya, Y. ; Seki, Y.
Author_Institution :
Syst. Eng. Div., Sumitomo Metal Ind. Ltd., Osaka, Japan
Abstract :
Automatic gage control (AGC) system is important for cold tandem mill rolling of steel. We studied a new gage and tension control system, based on inverse linear quadratic (ILQ) design theory. First, we designed the ILQ controller for the first stand of the cold tandem mill. Next, we analyzed the ILQ control law, and modified the original controller. Finally, we installed the modified controller in the plant, and achieved very high accuracy of cold strip gage. The focus of this study is the analysis of the function of the control loops, using parametric representation of the control law
Keywords :
cold rolling; control system synthesis; linear quadratic control; rolling mills; steel industry; steel manufacture; ILQ design theory; advanced AGC system; automatic gage control; cold strip gage; cold tandem mill; inverse linear quadratic design theory; parametric representation; steel rolling; tension control system; Automatic control; Control system synthesis; Control systems; Design engineering; Metals industry; Milling machines; Strips; Systems engineering and theory; Torque control; Vibration control;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.572663
