Title :
Dual perturbation AGC design based on QFT/μ controller in hot strip rolling process
Author :
Zhang Ming ; Yang Weidong ; Wang Shaofu
Author_Institution :
Key Lab. of Adv. Control of Iron & Steel Process (Minist. of Educ.), Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
The application of u-synthesis controller based on Quantitative Feedback Theory (QFT) tuning method in hot rolling Automatic Gauge Control (AGC) system is delivered in this paper. In the proposed strategy, a renowned dual-perturbation AGC model is presented. To the stiffness uncertainties and nonlinear parts, the integration of optimal control μ-synthesis and manual tuning in the QFT design environment enable controller design with a high level of robust performance and robust stability. QFT´s open-loop tuning can be more transparent than closed-loop tuning in industrial field. The simulation results show the combined controller is of better gauge control response and more effective on disturbance attenuation.
Keywords :
control system synthesis; feedback; hot rolling; open loop systems; optimal control; stability; μ-synthesis controller; QFT tuning method; automatic gauge control; dual perturbation AGC design; hot strip rolling process; open-loop tuning; optimal control; quantitative feedback theory; robust stability; stiffness uncertainties; Control systems; Mathematical model; Process control; Robustness; Strips; Tuning; Uncertainty; μ-Synthesis; Automatic Gauge Control; Dual-Perturbation; QFT;
Conference_Titel :
Control Conference (CCC), 2010 29th Chinese
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6263-6
