Fault Detection for Uncertain Delta Operator Systems with Two-Channel Packet Dropouts via a Switched Systems Approach  

作　　者：ZHANG Duanjin ZHANG Yinshuang 

机构地区：[1]School of Information Engineering,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Journal of Systems Science & Complexity》2020年第5期1446-1468,共23页系统科学与复杂性学报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant No.61471323。

摘　　要：This paper utilizes a switched systems approach to deal with the problem of fault detectio for uncertain delta operator networked control system with packet dropouts and timevarying delays.Uncertainties exist in the matrices of the systems and are norm-bounded time-varying.Two parts of packet dropouts are considered in this paper:From sensors to controllers,and from controllers to actuators.Two independent Bernoulli distributed white sequences are introduced to account for packet dropouts.Then an FD filter is designed under an arbitrary switching law.Furthermore,the sufficient conditions for the NCSs under consideration that are exponentially stable in the mean-square sense and satisfy H∞performance are obtained in terms of linear matrix inequalitie,multiple Lyapunov function and average dwell-tim approach.The explicit expression of the desired filter parameters is given.Finally,a numerical example verifies the effectiveness of the proposed method.

关 键 词：Delta operator fault detection networked control systems packet dropouts switched systems 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]