Title :
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
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;
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
DOI :
10.1109/CACSD-CCA-ISIC.2006.4777072
