The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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Tesion Control of Unwinder/Winder using a Tension Observer

장력 관측기를 이용한 풀림롤/감김롤의 장력제어

  • Published : 2000.01.01
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Abstract

The strip tension as well as the line speed should be controlled tightly for the quality of products and productivity of the continuous strip processing line. In this paper, a new tension control algorithm with tension observer is proposed using observed tension as regulator feedback. The tension observer is based on the torque balance of a roller stand including the acceleration torque. Using this estimated tension, new tension controller can be constructed with faster dynamic response in case of line speed acceleration or deceleration. The proposed scheme needs no additional hardware because the inputs of observer, current and speed, are already being monitored by the motor drive system. Through the simulations and experiments with laboratory set up, performances fo conventional schemes and proposed one are compared. The results show the effectiveness of the proposed tension controller.

Keywords

References

  1. J.K. Seok, D.W. Chung, S.H. Song, S.K. Sul, B.K. Kwon, G.W. Park, W.C. Shin, E.S. Cho, ;J.S. Lee, C.H. Choi, 'A New Approach to Advanced Cold Mill Drive Systems', IEEE Industry Application Society Annual Meeting, pp.2125-2130, 1997 https://doi.org/10.1109/IAS.1997.626361
  2. 포항종합제철주식회사, 2냉연 CAL TENSION 제어이론, 1988
  3. Norbert A. Ebler, Ragnar Arnason, Gerd Michaelis, and Noel DSa, 'Tension Control:Dancer Rolls or Load Cells', IEEE Trans. on Industry Applications Vol. 29, No. 4, pp. 727-739, 1993 https://doi.org/10.1109/28.231986
  4. W. Wolfermann, 'Tension Control of Webs-A Review of The Problems and Solutions in The Present and Future', Proc. of International Conference of Web Handling, pp. 1-22, 1997
  5. W. Wolfermann, D. Schroeder, 'Application of Decoupling and State Space Control in Processing Machines with Continuous Moving Webs', Proc. of IFAC, pp. 100-105, 1987
  6. S.H.Jeon, J.M. Kim, K.C. Jung, S.K.Sul, and J.Y. Choi, 'Decoupling Control of Bridle Rolls for Steel Mill Drive System', IEEE Trans. on Industry Application, Vol. 35, No. 1, January/February, pp.119-125, 1999 https://doi.org/10.1109/28.740855
  7. B.T. Boulter, 'Improving Bridle Low-Speed Regulation Using Cascaded Current Followers', IEEE Industry Application Society(IAS) Annual Meeting Conf. Rec., pp.2237-2243, 1998 https://doi.org/10.1109/IAS.1998.730126
  8. Kee-Hyun Shin, 'Distributed Control of Tension in Multi-span Web Transport System', Ph. D. Thesis, Oklahoma State Univ., 1991
  9. Seung-Ho Song and Seung-Ki Sul, 'A New Tension Controller for Continuous Strip Processing Line', IEEE Industry Application Society(IAS) Annual Meeting Conf. Rec., pp.2225-2230, 1998 https://doi.org/10.1109/IAS.1998.730124
  10. Seung-Ho Song and Seung-Ki Sul, 'Design and control of multi-span tension simulator', IEEE Industry Application Society(IAS) Annual Meeting Conf. Rec., pp.937-943, 1999 https://doi.org/10.1109/IAS.1999.801620