A fault detection scheme for uncertain switched systems under asynchronous switching

Abstract

The main focus of this paper is on analysis and design issues concerning with fault detection in asynchronous switching systems with uncertainties. To this end, the existence conditions for the application of observer-based fault detection systems are first derived. Based on these conditions, an observer-based fault detection scheme is proposed both for the matched and unmatched switching operations. The core of this scheme is a dynamic threshold. The theoretical results are finally illustrated by a numerical example