Title :
An application of advanced control to steel casting
Author :
Graebe, S.F. ; Goodwin, G.C. ; West, M.R. ; Stepien, P.
Author_Institution :
Centre for Ind. Control Sci., Newcastle Univ., NSW, Australia
Abstract :
Accurate control of the ferro-static head in continuous casting is believed to be a key factor in improving the quality of the cast product. This paper describes an application of advanced control, that resulted in a complete re-commissioning of the investigated mould level control system. Careful physical modelling identified smooth as well as non-smooth nonlinearities in the process. The paper describes three different central strategies that were implemented and evaluated: a dithering controller, a linear cascade controller, and a nonlinear cascade controller
Keywords :
cascade control; cascade systems; casting; level control; process control; steel industry; dithering controller; ferro-static head; linear cascade controller; mould level control; nonlinear cascade controller; nonlinearities; physical modelling; steel casting; Cascade systems; Metals industry; Process control;
Conference_Titel :
Control Applications, 1994., Proceedings of the Third IEEE Conference on
Conference_Location :
Glasgow
Print_ISBN :
0-7803-1872-2
DOI :
10.1109/CCA.1994.381488
