Modelling and parameter estimation for strip temperature control in continuous annealing processes

Author

Yoshitani, Naoharu

Author_Institution

Instrum. & Autom. Lab., Nippon Steel Corp., Chiba, Japan

fYear

1993

fDate

15-19 Nov 1993

Firstpage

469

Abstract

This paper presents a modelling and a recursive estimation of model parameters for the strip temperature control at the heating furnace in a continuous annealing process. A newly developed mathematical model consists of a dynamic model and a static model. The dynamic model, the main model for the control, was derived from the heat balance equation, while the static model is a curve-fitting approximation of the calculated temperature obtained by heat transfer calculation. The model accuracy was evaluated with actual operation data and the unknown parameters of the model are estimated online. The control system was designed based on this plant model and has been successfully applied to several real plants

Keywords

annealing; curve fitting; estimation theory; furnaces; metallurgical industries; modelling; parameter estimation; steel manufacture; temperature control; continuous annealing processes; curve-fitting approximation; dynamic model; heat balance equation; heat transfer calculation; modelling; parameter estimation; recursive estimation; static model; strip temperature control; Annealing; Equations; Furnaces; Heat transfer; Heating; Mathematical model; Parameter estimation; Recursive estimation; Strips; Temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on

Conference_Location

Maui, HI

Print_ISBN

0-7803-0891-3

Type

conf

DOI

10.1109/IECON.1993.339031

Filename

339031