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首页> 外文会议>Chinese Control Conference >Backstepping Sliding Mode Control for the Speed and Tension System of Reversible Cold Strip Rolling Mill Based on Tracking Differentiator
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Backstepping Sliding Mode Control for the Speed and Tension System of Reversible Cold Strip Rolling Mill Based on Tracking Differentiator

机译：基于跟踪微分器的可逆冷轧机速度和张力系统的反步滑模控制

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摘要

In this paper, in order to improve the coordinated tracking control performance for the speed and tension system of reversible cold strip rolling mill, a backstepping sliding model control strategy is proposed based on tracking differentiator (TD). Sliding model controller for each of the speed and tension subsystems is designed based on backstepping respectively, which improve the coordinated tracking control performance and robustness of the system effectively. Moreover, the TDs are adopted to estimate the virtual control laws and their first time derivatives, which avoid the “differential explosion” phenomena during using the backstepping control, and optimize the controller structures. Theoretical analysis shows that the resulting speed and tension closed-loop system is uniformly ultimately bounded stability. Finally, simulation research is carried out on the speed and tension system of a 1422 mm reversible cold strip rolling mill by using the actual data, and results show the superiority of the proposed control strategy in comparison with the decentralized overlapping control strategy.
机译：为了提高可逆冷轧机速度和张力系统的协调跟踪控制性能，提出了一种基于跟踪微分器（TD）的后推滑模控制策略。分别基于反推设计了每个速度子系统和张力子系统的滑模控制器，有效提高了系统的协调跟踪控制性能和鲁棒性。此外，采用TD估计虚拟控制律及其一阶导数，从而避免了在使用Backstepping控制过程中出现“微分爆炸”现象，并优化了控制器结构。理论分析表明，所得到的速度和张力闭环系统是一致地最终有界的稳定性。最后，利用实际数据对一台1422 mm可逆冷轧机的速度和张力系统进行了仿真研究，结果表明，与分散重叠控制策略相比，该控制策略具有优越性。

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