Automatic flatness control strategy with a Smith predictor for steel strip rolling

Ruicheng Zhang; Xin Zheng

doi:10.1117/12.906134

28 October 2011 Automatic flatness control strategy with a Smith predictor for steel strip rolling

Ruicheng Zhang, Xin Zheng

Proceedings Volume 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization; 82050S (2011) https://doi.org/10.1117/12.906134
Event: 2011 International Conference on Photonics, 3D-imaging, and Visualization, 2011, Guangzhou, China

Abstract

The simplified transfer function diagram block for a automatic flatness control (AFC) system of strip steel rolling process was investigated. For the problem of automatic flatness control (AFC) in cold tandem mills this paper proposes control techniques based on Smith predictor to compensate for the numerous delays present in the mill. After a Smith predictor was used to the AFC system, the control laws were deduced for both proportional and integral regulators. Control algorithms are tested in simulation considering a tandem mill with four stands as a benchmark, and results are shown to demonstrate the performance of the proposed schemes.

Citation Download Citation

Ruicheng Zhang and Xin Zheng "Automatic flatness control strategy with a Smith predictor for steel strip rolling", Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050S (28 October 2011); https://doi.org/10.1117/12.906134

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