Title :
Improvements in product quality in tandem cold rolling using robust multivariable control
Author :
Geddes, E. John M ; Postlethwaite, Ian
Author_Institution :
Dept. of Electr. & Electron. Eng., Portsmouth Univ., UK
fDate :
3/1/1998 12:00:00 AM
Abstract :
This paper considers the gauge control problem in tandem cold rolling. A robust multivariable solution is proposed via the H∞ loop shaping method of McFarlane and Glover (1990), which combined with a gain scheduling technique enables the control of the mill from thread speed to full speed. Improvement over a representative industrial controller is observed from nonlinear simulation results
Keywords :
H∞ control; H∞ optimisation; cold rolling; multivariable control systems; process control; quality control; robust control; steel industry; thickness control; H∞ control; H∞ loop shaping; H∞ optimisation; gain scheduling; gauge control; multivariable control systems; process control; product quality; robust control; tandem cold rolling; Actuators; Centralized control; Control systems; Industrial control; Job shop scheduling; MIMO; Milling machines; Robust control; Strips; Uncertainty;
Journal_Title :
Control Systems Technology, IEEE Transactions on
