Compensation for Uneven Temperature in Flatness Control Systems for Steel Strips

Author

Usamentiaga, Rubén ; García, Daniel F. ; González, Diego ; Molleda, Julio

Author_Institution

Dept. of Comput. Sci., Oviedo Univ., Asturias

Volume

1

fYear

2006

fDate

8-12 Oct. 2006

Firstpage

521

Lastpage

527

Abstract

Uneven temperature across the width of steel strips during rolling generates flatness defects due to differences in the contraction of the longitudinal fibers that make up a strip. In this work, a compensation process to modify the objective flatness using information about the temperature differences is designed. Compensation for uneven temperature is accomplished in two successive phases: a real time calculation of the temperature profile which best describes the temperature differences, and the modification of the objective flatness to take the temperature profile into account. To calculate the temperature profile, an adaptive moving-average filter is proposed. This information is used to modify the objective flatness carrying out the temperature compensation

Keywords

compensation; fibres; process control; real-time systems; rolling; steel; adaptive moving-average filter; contraction differences; flatness control systems; flatness defects; flatness target modification; longitudinal fibers; objective flatness; real time calculation; steel strips; successive phases; temperature differences; temperature profile; uneven temperature compensation; Adaptive filters; Control systems; Error correction; Hardware; Mechanical variables measurement; Regulators; Steel; Strips; Temperature control; Temperature measurement; adaptive moving-average filter; component; flatness target modification; temperature compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE

Conference_Location

Tampa, FL

ISSN

0197-2618

Print_ISBN

1-4244-0364-2

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2006.256569

Filename

4025254