基于切换积分事件触发控制的不确定非线性时滞系统执行器饱和问题研究

A Switched Integral-Based Event-Triggered Control of Uncertain Nonlinear Time-Delay System With Actuator Saturation

IEEE Transactions on Cybernetics · 2021
被引 41
ABS 3

中文导读

针对存在执行器饱和的不确定非线性时滞系统,提出一种切换积分事件触发方案以减少网络冗余数据传输,并通过依赖时滞的线性矩阵不等式确保系统渐近稳定,数值算例验证了方法的有效性。

Abstract

This article explores the asymptotic stabilization criteria of the uncertain nonlinear time-delay system subject to actuator saturation. A switched integral-based event-triggered scheme (IETS) is established to reduce the redundant data transmission over the networks. The switched IETS condition uses the integration of system states over a time period in the past. A fixed waiting time is included to avoid the Zeno behavior. In order to estimate a larger domain of attraction, a delay-dependent polytopic representation method is presented to deal with the effects of actuator saturation in the proposed model. A new series of less conservative linear matrix inequalities (LMIs) is proposed on the basis of delay-dependent Lyapunov-Krasovskii functional (LKF) to ensure the stability of nonlinear time-delay system subject to actuator saturation using the proposed IETS. Numerical examples are used to confirm the effectiveness and advantages of the proposed IETS approach.

控制理论非线性系统事件触发控制时滞系统执行器饱和