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http://dx.doi.org/10.9726/kspse.2015.19.4.024

Looper-Tension Control of Strip Top-Tail Parts for Hot Rolling Mills  

Hwang, I-Cheol (Department of Mechatronics Engineering, Dongeui University)
Publication Information
Journal of Power System Engineering / v.19, no.4, 2015 , pp. 24-29 More about this Journal
Abstract
This paper designs a looper-tension controller for strip top-tail parts in hot strip finishing mills. A three-degree linear model of the looper-tension system is derived by a Taylor's linearization method, where the actuator's dynamics are ignored because of their fast responses. A feedforward shaping controller for the strip top part and a feedforward model reference controller for the strip tail part are respectively designed, they are combined with an ILQ(Inverse Linear Quadratic optimal control) feedback controller for the strip middle part. It is shown from by a computer simulation that the proposed controller is very effective to the strip top-tail parts including the middle part.
Keywords
Hot strip finishing mill; Looper-tension system; Shaping filter; Model reference controller; Inverse linear quadratic optimal control;
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  • Reference
1 I. C. Hwang, 2009, "Development of a looper-tension control technology for hot strip finishing mills", Research Report of POSCO.
2 Yuki Kuroe, Hiroshi Abe and Takao Fujii, 1996, "ILQ Design Method for Optimal Servo Systems with Generalized Reference Inputs", Trans. of the Society of Instrument and Control Engineers(SICE), Vol. 32, No. 4, pp. 539-546.   DOI
3 H. Imanari, Y. Morimatsu, K. Sekiguchi, H. Ezure, R. Matuoka, A. Tokuda and H. Otobe, 1997, "Looper H-Infinity Control for Hot-Strip Mills", IEEE Transactions on Industry Applications, Vol. 33, No. 3, pp. 790-796.   DOI   ScienceOn
4 N. Suda, 1994, PID Control, Jochang, pp.74-106.
5 S. Kunimatsu, M. Fujii and T. Fujii, 2004, "Analysis and Synthesis of Model Reference ILQ Servo System with Tracking Robustness", Trans. of the System, Control and Information, Vol. 17, No. 3. pp. 22-27.