Set-based Actuator Fault Diagnosis in Lure Systems

作     者：María M. Seron José A. De Doná Jan H. Richter 

作者机构：Centre for Complex Dynamic Systems and Control (CDSC) School of Electrical Engineering and Computer Science The University of Newcastle Callaghan NSW 2308 Australia Siemens AG Industry Sector Gleiwitzer Str. 555 90475 Nuremberg Germany 

出 版 物：《IFAC Proceedings Volumes》 

年 卷 期：2012年第45卷第20期

页      面：234-239页

主　　题：Lure systems fault detection and identification invariant sets 

摘      要：In this paper we present a method for actuator fault detection and identification in Lure systems. The Lure plant is controlled by an observer-based feedback tracking controller, designed for the nominal (fault-free) system. A residual signal is constructed from measurable estimation errors associated with the nominal observer. Faults are diagnosed by on-line contrasting the residual signal trajectories against a set of values that the residuals can be shown to attain under healthy or faulty operation. These values are obtained via set-invariance analysis of the system closed-loop trajectories.