Design of a robust thickness controller for a single-stand cold rolling mill

Gun Hwang, Hyun Sik Ahn, Do Hyun Kim, Tae Woong Yoon, Sang Rok Oh, Kwang Bae Kim

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

In this paper, we derive a mathematical model of a single-stand cold rolling mill and design control systems to improve the thickness precision while maintaining prescribed tension for the strip. On the basis of a linearized model of the rolling mill system, we propose a thickness controller using an Internal Model Control(IMC) structure which effectively rejects periodic disturbances. We also discuss how the so-called BISRA AGC method can be combined with the proposed thickness controller in the presence of modeling error. It is illustrated by simulations that the proposed thickness controller yields better performance than existing methods when a periodic thickness disturbance exists, and that it is robust to the uncertainty of the mill modulus.

Original languageEnglish
Pages468-473
Number of pages6
Publication statusPublished - 1996
EventProceedings of the 1996 IEEE International Conference on Control Applications - Dearborn, MI, USA
Duration: 1996 Sep 151996 Sep 18

Other

OtherProceedings of the 1996 IEEE International Conference on Control Applications
CityDearborn, MI, USA
Period96/9/1596/9/18

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Hwang, G., Ahn, H. S., Kim, D. H., Yoon, T. W., Oh, S. R., & Kim, K. B. (1996). Design of a robust thickness controller for a single-stand cold rolling mill. 468-473. Paper presented at Proceedings of the 1996 IEEE International Conference on Control Applications, Dearborn, MI, USA, .