Control design and implementation in continuous steel casting

Author

Graebe, S.F. ; Goodwin, G.C. ; Elsley, G.

Author_Institution

Centre for Ind. Control Sci., Newcastle Univ., NSW, Australia

Volume

15

Issue

4

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

64

Lastpage

71

Abstract

Accurate control of the mold level 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 to this problem leading to a complete recommissioning of the mold level control system. Careful physical modeling identified smooth as well as nonsmooth nonlinearities in the process. Three different control strategies were implemented and evaluated. The article also describes some of the steps necessary to bring advanced control to practical reality, including safety, rapid prototyping, online tuning, and economic evaluation

Keywords

casting; control nonlinearities; level control; nonlinear control systems; steel industry; steel manufacture; continuous steel casting; control design; control implementation; economic evaluation; mold level control; nonsmooth nonlinearities; online tuning; rapid prototyping; safety; smooth nonlinearities; Australia; Casting; Control design; Control systems; Cooling; Friction; Level control; Reservoirs; Steel; Valves;

fLanguage

English

Journal_Title

Control Systems, IEEE

Publisher

ieee

ISSN

1066-033X

Type

jour

DOI

10.1109/37.408459

Filename

408459