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

fYear

2013

fDate

10-13 Dec. 2013

Firstpage

4991

Lastpage

4996

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control (CDC), 2013 IEEE 52nd Annual Conference on

Conference_Location

Firenze

ISSN

0743-1546

Print_ISBN

978-1-4673-5714-2

Type

conf

DOI

10.1109/CDC.2013.6760672

Filename

6760672