Control of hot-rolling strip for Wavelet-based system identification approach

Author

Peng, Kaixiang ; Tong, Chaonan ; Dong, Jie

Author_Institution

Inf. Eng. Sch., Univ. of Sci. & Technol., Beijing

fYear

2006

fDate

4-6 Oct. 2006

Firstpage

2737

Lastpage

2741

Abstract

In this paper, a new scheme for wavelet-based force feed-forward automatic gauge control (WFFF-AGC) based on multi-resolution decomposition using wavelets is proposed to improve the conventional automatic gauge control (AGC). Multi-resolution provides a variable resolution time-frequency distribution for the roll force of F₁-F₆stand, then signals containing hardness information are converted into control decisions used for feed-forward control in latter stands. By doing so, the thickness error especially at the head-end part of the strip is considerably reduced

Keywords

feedforward; force control; hot rolling; identification; time-frequency analysis; wavelet transforms; automatic gauge control; hot-rolling strip; multiresolution decomposition; roll force; time-frequency distribution; wavelet-based force feed-forward control; wavelet-based system identification; Automatic control; Control systems; Feedforward systems; Force control; Milling machines; Multiresolution analysis; Signal resolution; Steel; Strips; System identification; Control system; Force Feed-Forward Automatic Gauge Control (FFF-AGC); Hot-rolling process; Multi-Resolution Decomposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control, 2006 IEEE

Conference_Location

Munich

Print_ISBN

0-7803-9797-5

Electronic_ISBN

0-7803-9797-5

Type

conf

DOI

10.1109/CACSD-CCA-ISIC.2006.4777072

Filename

4777072