Adaptive Output Feedback Control for Nonlinear Interconnected Time-Delay Systems Subject to Global Performance Constraint
针对状态不可测且存在未建模动态的非线性互联时滞系统，提出一种基于新性能函数的分散自适应模糊输出反馈控制方法，消除初始值影响并避免复杂度爆炸，实现全局跟踪性能约束。
This article considers the prescribed performance tracking problem for a class of nonlinear interconnected time-delay systems, in which system states are unavailable and each subsystem is subject to unmodeled dynamics. Based on a novel performance function, the effect of initial values is eliminated in the prescribed performance method and the dynamic surface control method is employed to avoids the complexity explosion problem. With the reduced-order observer and fuzzy logic system, decentralized adaptive fuzzy output feedback control approach is proposed and the output feedback control strategy is further explored concerning global tracking performance constraint provided that the nonlinear time-delay functions are known or satisfy other mild assumptions. A numerical simulation is provided to substantiate our method.