标题：Fault Detection and Post-Filter Design for Discrete-Time Switched Systems with PDT Switching
作者：Sun, Taiyi; Zhu, Yanzheng; Wang, Yan; Wang, Zilan
作者机构：[Sun, Taiyi; Zhu, Yanzheng; Wang, Yan; Wang, Zilan] Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China.
会议名称：36th Chinese Control Conference (CCC)
会议日期：JUL 26-28, 2017
来源：PROCEEDINGS OF THE 36TH CHINESE CONTROL CONFERENCE (CCC 2017)
关键词：Fault Detection; Switched Systems; Persistent Dwell Time; Parity Space; Approach
摘要：This paper investigates the fault detection and post-filter design issues for a class of discrete-time switched systems. The considered switching signals are of persistent dwell time characteristic, which are more general than the widely used average dwell time even dwell time switching properties. First of all, an observer-based residual generator is formulated, and the asymptotic stability of the augmented system is studied with the aid of semi-time-varying Lyapunov function approach, which derives the explicit expression of fault detection filters using the linear matrix inequalities technique. Then, a method of post-filter design is employed to improve the ability of fault detection, and the optimal residual evaluation is performed based on the typical parity-space approach.