【摘要】 针对一类具有网络时延和范数有界未知输入影响的不确定网络控制系统,研究了基于观测器的鲁棒H∞故障诊断方法.基于Lyapunov稳定性条件和线性矩阵不等式技术,得到了使系统渐近稳定的H∞性能判据,该准则的条件与网络诱导时延相关,在此性能准则的基础上可以进行长时延网络控制系统鲁棒H∞故障诊断滤波器的设计.更多还原

【Abstract】 The problem of robust fault H∞ detection based on states estimate approach is investigated for uncertain networked control systems with networked induced delay and norm-bounded unknown input.Based on Lyapunov theory and LMI technology,a H∞ criterion was presented,which was relative with networked induced delays.Then,some robust H∞ fault detection filter could be derived from the criterion,which guarantees not only the quadratic stability of the closed-loop systems but also the H∞ norm bound within a predefined level.更多还原