变时延网络系统的鲁棒稳定性界

L. Dritsas, A. Tzes
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引用次数: 1

摘要

本文研究了具有不确定、变化、有界传输延迟和异步离散静态控制律的网络控制系统。首先证明了时滞变化会产生离散时间不确定的NCS模型;鲁棒稳定性分析通过线性矩阵不等式方法进行,当与有向参数搜索相结合时,产生对闭环系统可以容忍的最大允许延迟(约束在一个采样周期内)的任何变化的鲁棒稳定性界的估计。将导出的边界与其他依靠摄动ncs模型奇异值的方法进行了比较。仿真结果证明了所提控制方案的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Robust stability bounds for networked systems with varying delays
This paper is concerned with Networked Controlled Systems (NCS) with uncertain, varying, bounded transmission delays and asynchronous discrete-time static control laws. It is first shown that the delay variation gives rise to a discrete-time uncertain NCS model; robust stability analysis is carried out via a linear matrix inequality approach which, when combined with a directed parameter search, yields an estimate of robust stability bounds against any variations of the maximum allowable delay (constrained within one sampling period) that the closed-loop system can tolerate. The derived bounds are compared with other techniques relying on the singular values of the perturbed NCS-model. The presented simulation results prove the efficacy of the proposed control scheme.
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