Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Modeling and Identification of Web Tension Control System with Dancer Roll

댄서롤이 장착된 웹 장력 제어시스템의 모델링 및 규명

  • Published : 2009.11.01
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Abstract

Web tension control system recently have been applied to OLED(Organic Light-Emitting Diode), RFID of flexible material, e-Paper and PLED(Polymeric LED) and various web control algorithms have being developed for higher productivity and product quality These system need an accuracy model to design and implement controller. In this paper, the web tension control system with dancer roll is mathematically modeled. Mathematical model consists of 8 subsystems and each subsystems can be described as impedance structure which connected by velocity and tension. Mathematical model is different from the estimated model at high frequency range because of structure dynamics which is ignored on mathematical model. The estimated model is derived using ARMAX model. The controller is designed using the estimated model. The step response of the estimated model are compared with that of physical model for a validation of estimated model. The experimental results show a good match between them.

Keywords

References

  1. Koç, H., Knittel, D., de Mathelin, M. and Abba, G., "Modeling and Robust Control of Winding Systems for Elastic Webs," IEEE Transactions on Control Systems Technology, Vol. 10, No. 2, pp. 197-208, 2002 https://doi.org/10.1109/87.987065
  2. Pagilla, P. R., Dwivedula, R. V., Zhu, Y. and Perera, L. P., "Periodic Tension Disturbance Attenuation in Web Process Lines Using Active Dancers," Journal of Dynamic Systems, Measurement, and Control, Vol. 125, No. 3, pp. 361-371, 2003 https://doi.org/10.1115/1.1590678
  3. Sakamoto, T. and Izumihara, Y., "Decentralized Control Strategies for Web Tension Control System," Proc. of IEEE International Symposium on Industrial Electronics, Vol. 3, pp. 1086-1089, 1997
  4. Choi, I. S., Rossiter, A. and Fleming, P., "Effectiveness of MPC algorithms for hot rolling mills in the presence of disturbances," Proc. of the 2007 American Control Conference, pp. 4118-4123, 2007
  5. Lynch, A. F., Bortoff, S. A. and Robenack, K., "Nonlinear tension observers for web machines," Automatica, Vol. 40, No. 9, pp. 1517-1524, 2004 https://doi.org/10.1016/j.automatica.2004.03.021
  6. Zhu, Y., "Multivariable system identification for process control," Elsevier Science, 2001
  7. Lee, S.-H., "Experimental study on tension control of web handling system with dancer roll," Mechanical Engineering, Ph. D. Thesis, Yeungnam University, 2009