This paper studies the fuzzy output feedback event-triggered control design method for the uncertain nonlinear systems with the unavailable states. First, an interval type-2 Takagi–Sugeno fuzzy system is utilized to model the nonlinear system, on which a fuzzy state observer is designed to estimate the unmeasured states. Second, via using the estimated states, a event-triggered mechanism is given, and a fuzzy output feedback event-triggered control approach is developed based on the parallel distributed compensation algorithm. Third, by employing Lyapunov theory, a sufficient condition is derived to guarantee the asymptotic stabilization of the closed-loop system, and the control gain and observer gain matrices are obtained via linear matrix inequalities approach. Finally, a numerical example and a practical example are provided to verify the feasibility and efficiency of the developed control scheme.

本文研究了具有不可用状态的不确定非线性系统的模糊输出反馈事件触发控制设计方法。首先，利用区间 2 型 Takagi-Sugeno 模糊系统对非线性系统进行建模，在该系统上设计了一个模糊状态观察器来估计未测量的状态。其次，利用估计的状态，给出了事件触发机制，并基于并行分布式补偿算法开发了一种模糊输出反馈事件触发控制方法。第三，利用李雅普诺夫理论，推导出保证闭环系统渐近稳定的充分条件，并通过线性矩阵不等式方法得到控制增益和观测器增益矩阵。最后，