Research on speed and tension multivariable system of reversible cold strip mill based on ILQ theory

Zheng, Gang; Xiaoli, Chao; Yang, Zhe; Fu-Caiqian,

doi:10.1109/icmlc.2015.7340907

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Cited by 8 publications

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“…Several control methods to maintain constant tension and velocity are known. The authors in [1] propose an inverse linear quadratic method control (QIL) for the reversible cold-rolling mill velocity and tension system with multivariate uncertainties and strong coupling. Ref.…”

Section: Introductionmentioning

confidence: 99%

Improved Control of the Web Winding System Based on a Super-Twisting Observer

Akil¹,

Touati²,

Zegrari³

et al. 2019

IJRTE

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The web winding system (WWS) presents a difficult problem at the level of control because of the strong nonlinearities of the models and the effects of internal or external disturbances. To improve the dynamic performance and robustness of the control of WWS, a robust control method based on the first and second order sliding mode algorithm is proposed in this work. The stability of the controllers is proved by the theory of Lyapunov stability using an appropriate switching function. In addition, an observer of super twisting tensions is suggested. The developed method allows a direct estimate "on line" of the tension. Finally, computer simulations are developed to show the performance of the sliding mode control and the proposed nonlinear observer.

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Section: Introductionmentioning

confidence: 99%