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Robust Adaptive Fuzzy Output Tracking Control for a Class of Twin-Roll Strip Casting Systems

机译：一类双辊薄带连铸系统的鲁棒自适应模糊输出跟踪控制

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摘要

This paper is concerned with the adaptive fuzzy control problem for a class of twin-roll strip casting systems. By using fuzzy logic systems (FLSs) to approximate the compounded nonlinear functions, a novel robust output tracking controller with adaptation laws is designed based on the high gain observer. First, the nonlinear dynamic equations for the roll gap and the molten steel level are constructed, respectively. Then, the mean value theorem is employed to transform the nonaffine nonlinear systems to the corresponding affine nonlinear systems. Moreover, it is also proved that all the closed-loop signals are bounded and the systems output tracking errors can converge to the desired neighborhoods of the origin via the Lyapunov stability analysis. Finally, simulation results, based on semiexperimental system dynamic model and parameters, are worked out to show the effectiveness of the proposed adaptive fuzzy design method.
机译：本文涉及一类双辊带钢连铸系统的自适应模糊控制问题。通过使用模糊逻辑系统（FLS）近似复合非线性函数，基于高增益观测器，设计了一种具有自适应律的新型鲁棒输出跟踪控制器。首先，分别建立轧辊间隙和钢水液位的非线性动力学方程。然后，使用平均值定理将非仿射非线性系统转换为相应的仿射非线性系统。此外，还证明了所有闭环信号都是有界的，并且通过Lyapunov稳定性分析，系统输出的跟踪误差可以收敛到原点的所需邻域。最后，基于半实验系统动力学模型和参数，仿真结果表明了所提出的自适应模糊设计方法的有效性。

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  • 来源
    《Mathematical Problems in Engineering》 |2017年第6期|6742630.1-6742630.10|共10页
  • 作者

    Zhang Yu-Jun; Wu Li-Bing; Zhao Hong-Yang; Hu Xiao-Dong; Zhang Wen-Yu; Ju Dong-Ying;

  • 作者单位

    Univ Sci & Technol Liaoning, Software Sch, Anshan 114051, Liaoning, Peoples R China;

    Univ Sci & Technol Liaoning, Sch Sci, Anshan 114051, Liaoning, Peoples R China;

    Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Liaoning, Peoples R China;

    Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Liaoning, Peoples R China;

    Univ Sci & Technol Liaoning, Coll Int Finance & Bank, Anshan 114051, Liaoning, Peoples R China;

    Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Liaoning, Peoples R China;

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