Title :
A distributed detection and isolation scheme for multiple sensor faults in interconnected nonlinear systems
Author :
Reppa, Vasso ; Polycarpou, Marios M. ; Panayiotou, Christos G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Cyprus, Nicosia, Cyprus
Abstract :
This paper presents a distributed methodology for detecting and isolating multiple sensor faults in interconnected nonlinear systems. For each of the interconnected subsystems, a corresponding Local Sensor Fault Diagnosis (LSFD) agent is designed, which is allowed to exchange information with neighboring LSFD agents. The decisions of the LSFD agents are integrated and processed by a Global Sensor Fault Diagnosis (GSFD) agent in order to isolate multiple sensor faults propagating between neighboring LSFD agents through information exchange. The combined local and global isolation decision logic is designed based on diagnostic reasoning, taking into account the effects of sensor faults in the local sensor set and the transmitted faulty sensor information on the agents´ decisions.
Keywords :
diagnostic reasoning; fault diagnosis; interconnected systems; nonlinear control systems; sensors; GSFD agent; LSFD agent; diagnostic reasoning; distributed detection scheme; distributed isolation scheme; faulty sensor information; global sensor fault diagnosis agent; information exchange; interconnected nonlinear systems; interconnected subsystems; isolation decision logic; local sensor fault diagnosis agent; multiple sensor faults detection; multiple sensor faults isolation; Adaptation models; Cognition; Europe;
Conference_Titel :
Decision and Control (CDC), 2013 IEEE 52nd Annual Conference on
Conference_Location :
Firenze
Print_ISBN :
978-1-4673-5714-2
DOI :
10.1109/CDC.2013.6760672
