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Decentralized adaptive fuzzy output-feedback control of nonlinear interconnected systems with time-varying delay

机译：时变时滞非线性互联系统的分散自适应模糊输出反馈控制

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摘要

A robust adaptive output-feedback control scheme based on K-filters is proposed for a class of nonlinear interconnected time-varying delay systems with immeasurable states. It is difficult to design the controller due to the existence of the immeasurable states and the time-delay couplings among interconnected subsystems. This difficulty is overcome by use of the fuzzy system, the K-filters and the appropriate Lyapunov-Krasovskii functional. Based on Lyapunov theory, the closed-loop control system is proved to be semi-global uniformly ultimately bounded (SGUUB), and the output tracking error converges to a neighborhood of zero. Simulation results demonstrate the effectiveness of the approach.
机译：针对一类不可估量的非线性互联时变时滞系统，提出了一种基于K滤波器的鲁棒自适应输出反馈控制方案。由于存在不可估量的状态以及互连子系统之间的时间延迟耦合，因此很难设计控制器。通过使用模糊系统，K滤波器和适当的Lyapunov-Krasovskii函数可以克服此困难。基于李雅普诺夫理论，证明了该闭环控制系统为半全局一致最终有界（SGUUB），并且输出跟踪误差收敛到零附近。仿真结果证明了该方法的有效性。

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