Title :
The Application of Robust Multivariable Observer in Tandem Cold Mills
Author :
Liangui, Chen ; Weidong, Yang ; Binghu, Yang
Author_Institution :
Univ. of sci. & technol. Beijing, Beijing
Abstract :
Tandem-cold-mills is a complex multivariable process in which the thickness, hardness and crown of the strip can usually not be measured due to the measure meters out of function and the hostile environment. This paper proposed a novel multivariable observer which is robustly stable for changes to the mill modulus while still providing high observed states accuracy. The performance and stability of the multivariable observer are analyzed and the benefit of the multivariable observer is demonstrated using a simulation and paved the way to the production of an advanced multivariable controller.
Keywords :
cold working; metallurgical industries; multivariable control systems; observers; robust control; rolling mills; hostile environment; mill modulus; multivariable controller; multivariable process; robust multivariable observer; robustly stable; tandem cold mills; Analytical models; Milling machines; Observers; Performance analysis; Robust control; Robustness; Stability analysis; State estimation; Strips; Thickness measurement; Luenberger; Multivariable; Robust observer; Tandem Cold Mills;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4346784
