Modelization and identification of the Hot Blast Stove´s heating cycle

Author

Tomas, Andres Flen M. ; Guidi, Franco ; Benedetti, Rodrigo ; Lefranc, Gastón

Author_Institution

Escuela de Ing. Electr., Pontificia Univ. Catolica de Valparaiso, Valparaiso, Chile

fYear

2011

fDate

19-21 Dec. 2011

Firstpage

1267

Lastpage

1273

Abstract

This paper presents a model and its identification, which characterizes the thermal dynamic heating cycle for No. 22 Hot Blast Stove, located in the No. 2 Blast Furnace, at “CompañíaSiderúrgicaHuachipato” in Talcahuano, Chile. System identification was used to model the dynamics for heating cycle based on the empirical data from the plant. In addition, a control system is proposed to obtain heating curves that generate energy savings. Model Predictive Control (MPC) was employed to minimize the tracking error to the reference while satisfying operation constraints. The feasibility of the proposal is verified according to the simulation results, estimating a 4% savings in fuel usage.

Keywords

blast furnaces; energy consumption; heating; hot working; minimisation; predictive control; process control; blast furnace; control system identification; energy saving; fuel usage; heating curve; hot blast Stove heating cycle identification; model predictive control; thermal dynamic heating cycle; tracking error minimization; Accuracy; Data models; Fuels; Heating; Mathematical model; System identification; Temperature measurement; Hot Blast Stove; Model Predictive Control; System Identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation (ICCA), 2011 9th IEEE International Conference on

Conference_Location

Santiago

ISSN

1948-3449

Print_ISBN

978-1-4577-1475-7

Type

conf

DOI

10.1109/ICCA.2011.6138077

Filename

6138077