Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지
DOI QR코드

DOI QR Code

Tension Estimation of Interstand Strip in Looperless Hot Rolling Process Using SVR

SVR을 이용한 Looperless 열연 공정에서의 스텐드간 장력 추정

  • Published : 2007.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper proposes a novel tension estimation of interstand strip in looperless hot rolling process using SVR(Support Vector Regression). The quality of hot coil which is final product of hot rolling process is substantially decided by tension control of finishing rolling in hot rolling process. The fluctuation of the strip tension in conventional hot rolling process is controlled by the strip tension measured by an inter-stand looper. However, the looper can cause a motor trip and tension hunting in hot rolling process, therefore, alternative method is essential to replace it. In this paper, the mathematical modeling of tension mechanism is implemented to estimate the tension using the proposed SVR algorithm without looper in hot rolling process. The simulation results show a reliable estimation performance and a possibility of tension control using SVR technique.

Keywords

References

  1. T. Imae, N. Nomura, and S., Miyoshi, 'High quality production technology in chiba No 3 hot strip mill,' Report of Kawasaki Steel Co. vol. 28, no. 4, pp. 219-223, 1996
  2. V. B. Grinzburg, High-Quality Steel Rolling Marcel Dekker, New York, 1993
  3. G. V. Bass, 'Minimum tension control in finishing train of hot strip mills,' Iron and Steel Engineer
  4. H. Y. Lee, 'Automatic control of the rolling mill processing,' Chundo Press, 1997
  5. S. Gunn, 'Support vector machines for classification and regression,' ISIS Technical Report, U. of Southampton, 1998
  6. J. H. Shim, D. C. Han, J. D; Kim, C. J. Park, H. D. Park, and S. G. Lee, 'Looperless tension control in hot rolling process using SVR,' ICCAS, 2005
  7. C. J. Park, S. G. Choi, and J. H. Kwak, 'Development of simulator of rolling process,' KACC, 1996
  8. W. H. Kim and C. J. Park, 'Development of control technology of flying gap and speed change for endless hot rolling,' KACC, 1998
  9. V. B. Ginzburg, 'Basic principles of customized computer models for cold and hot strip mills,' Iron and Steel Engineer, pp. 21-35, 1985
  10. M. T. Clark, H. Versteeg, and W. Konjin, 'Development of new high performance loopers for hot strip mill' Iron and Steel engineer, pp.64-70,1997