标题：Observer-based Fault Detection for Discrete-time Networked Switching Systems with Redundant Channels
作者：Sun, Taiyi; Zhu, Yanzheng; Zhou, Donghua
作者机构：[Sun, Taiyi; Zhu, Yanzheng; Zhou, Donghua] Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China.
会议名称：10th International-Federation-of-Automatic-Control (IFAC) Symposium on Fault Detection, Supervision and Safety for Technical Processes (SAFEPROCESS)
会议日期：AUG 29-31, 2018
关键词：fault detection; discrete-time switched system; redundant channels;; quasi-time-dependent Lyapunov function; persistent dwell time
摘要：This paper investigates the problem of observer-based fault detection for discrete time network-based switching systems with redundant channels. The redundant channel is considered to overcome the fragility of networks configured by a single channel in the communication networks. The considered switching law is of mode-dependent persistent dwell time characteristic, which is more general than the widely-used average dwell time and dwell time switching properties. The desired fault detection filters are designed, and the globally asymptotic stability of the augmented system is analyzed using the quasi-time-dependent Lyapunov function approach. The explicit solution of the fault detection filters is obtained by solving a set of linear matrix inequalities. A practical application on the boost converter is illustrated to show the effectiveness of the theoretical findings. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.