This article investigates the fault-tolerant control problem for stochastic switched interval type-2 (IT2) fuzzy time-delayed uncertain systems based on unknown input observer synthesis, which can avoid uneasy measurement on the time derivative of output, and estimate unavailable or partially measurable states, including sensor and actuator faults accurately. First, a desired fuzzy observer is designed to ensure the observer-based dynamic error system mean-square exponentially stable with sufficient condition of a strict (ℓ,ℏ,℘)-℧-dissipative performance, which is a unified framework of passivity, and H∞ provides results with less conservativeness. Then, we concentrate on stability analyses on dissipativity-based switched IT2 fuzzy systems with stochastic perturbation through linear matrix inequalities, Lyapunov function, free-weighting matrices, and average dwell time, discussing it according to different values of disturbance. Finally, simulation examples are listed to account for availability and effectiveness of the research methodology.

中文翻译：

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具有时变时滞和不确定性的随机切换系统基于耗散性的容错控制。

本文研究了基于未知输入观测器综合的随机切换区间2型（IT2）模糊时滞不确定系统的容错控制问题，该系统可以避免对输出的时间导数进行不方便的测量，并估计不可用或部分可测量的状态，包括传感器和执行器的故障。首先，设计一个所需的模糊观测器，以确保基于观测器的动态误差系统均方指数稳定，并且具有严格的（ℓ，ℓ，℘）-℧耗散性能的条件，该条件是无源性的统一框架，并且H∞提供的结果保守性较低。然后，我们专注于通过线性矩阵不等式，Lyapunov函数，自由加权矩阵，基于随机耗散的基于耗散的切换式IT2模糊系统的稳定性分析，平均停留时间，并根据不同的扰动值进行讨论。最后，列出了仿真示例以说明研究方法的可用性和有效性。