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Controller Structure and Performance According to Linearization Methods in the Looper ILQ Control for Hot Strip Finishing Mills
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 Title & Authors
Controller Structure and Performance According to Linearization Methods in the Looper ILQ Control for Hot Strip Finishing Mills
Park, Cheol-Jae; Hwang, I-Cheol;
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This paper studies on the relation between linearization methods and controller gains in the looper ILQ(lnverse Linear Quadratic optimal control) system for hot strip finishing mills. Firstly, two linear models arc respectively derived by a linearization method using Taylor's series expansion and a static state feedback linearization method, respectively, and the linear models are compared with the nonlinear model. Secondly, the looper servo controllers are respectively designed on the basis of two linearization models. Finally, the relation between the performances of two ILQ servo controllers and the linearization methods, and the structures and control gains of two controllers are evaluated by a computer simulation.
inverse linear quadratic optimal control;hot strip finishing mill;looper system;strip tension;looper angle;feedback linearization;Taylor's linearization;
 Cited by
G. Rearns, M. R. Katebi, and M. J. Grimble, 'Robust Control of a Hot Strip Mill Looper,' IFAC the 13th Triennial World Congress, pp. 445-450, 1996

H. Imanari, Y. Morimatsu, K. Sekiguchi, H. Ezure. R. Matuoka, A. Tokuda, and H. Otobe, 'Looper H-lnfinity control for hot-strip mills,' IEEE Transactions on Industry Applications, vol. 33, no. 3, pp. 790-796, 1997 crossref(new window)

T. Hesketh, Y. Jiang, A. Clements, D. J. Butler, and R. Van Der Laan, 'Controller design for hot strip finishing mills,' IEEE Transactions on Control Systems Technology, vol. 6, no. 2, pp, 208-219, 796, 1998 crossref(new window)

G. Rearns and M. J. Grimble, 'Multivariable control of a hot strip finishing mill,' Proceedings of the American Control Conference Albuquerque. New Mexico, pp.3775-3779, 1997 crossref(new window)

H. lmanari, Y. Seki, K. Sekiguchi, and Y. Anbe, 'Application of ILQ theory to steel rolling processes,' Proceedings of the 7th Int. conf. on Steel Rolling, Japan, pp. 36-41, 1998

S. B. Kim and I. C. Hwang, 'Design of an ILQ looper controller for hot strip mills,' Trans. of KSME, vol. 26, no. 8, pp. 1680-1689, 2002

J. lmura, A. Kojima, S. Masuda, and K. Asano: Tetsu-to-Hagane, 90, 2004

S. Masuda, 'A model predictive control of a hot strip mill tension/looper system model based on PWA systems with sequential mode transition,' SICE-ICASE International Conference 2006, pp. 4099-4102, 2006 crossref(new window)

T. Fujii, 'A new approach to the LQ design from the viewpoint of inverse regulator problem,' IEEE Trans on AC, vol. AC-32, no. 11, pp. 995-1004, 1987

木村英記, 藤井隆雄, 森武宏, ロバスト制御,' コロナ社, pp. 109-156, 1994

이홍기, 비선형 제어시스템의 성형화, 중앙대학 출판부, 2001

I. C. Hwang and S. B. Kim, 'Feedback Linearization control of the looper system in hot strip mills,' KSML Int. J., vol. 17, no. 11, pp. 1608-1615, 2001