Title :
Disturbance rejection in a rolling mill
Author :
Balestrino, Aldo ; Landi, Alberto ; Sani, Luca
Author_Institution :
Dipt. di Sistemi Elettrici e Autom., Pisa Univ., Italy
Abstract :
This paper deals with the application of advanced control techniques to improve the product quality in hot rolling mills. Performance improvements are obtained by modifying the controller structure. A combined control of the upper and lower servo-drive reduces the speed fluctuations; torsional oscillations can almost be eliminated by adding a disturbance observer. Extensive computer simulations show the obtainable improvements and allow an easy design of the controller
Keywords :
electric drives; feedback; hot rolling; observers; process control; rolling mills; servomechanisms; torque control; disturbance observer; feedback; hot rolling mills; process control; product quality; servo-drive; torque control; torsional oscillations; Application software; Automatic control; Computer simulation; DC motors; Milling machines; Servomotors; Shafts; Strips; Temperature; Torque;
Conference_Titel :
Control Applications, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Trieste
Print_ISBN :
0-7803-4104-X
DOI :
10.1109/CCA.1998.728367
