Estimation and reconstruction of multiple system, actuator and sensor faults in time-delayed linear systems

Author

Ahmadi, Ali Akbar ; Salmasi, Farzad R.

Author_Institution

Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran, Iran

fYear

2011

fDate

19-21 Dec. 2011

Firstpage

590

Lastpage

595

Abstract

Detection, isolation, and reconstruction of multiple system, actuator, and sensor faults in time-delayed linear systems are considered in this note. Based on an appropriate change of system coordinates; all system, actuator, and sensor faults are assigned to different subsystems of a time-delayed linear system. Then, using sliding mode observers and equivalent output error injection approaches, all faults are reconstructed separately. This results in reduced computational complexity. Finally, numerical simulation is used to show the feasibility and effectiveness of the proposed approach.

Keywords

actuators; delays; estimation theory; fault diagnosis; linear systems; sensors; variable structure systems; actuator fault; computational complexity; equivalent output error injection approach; multiple system estimation; multiple system reconstruction; sensor fault; sliding mode observer; system coordinate; time-delayed linear system; Actuators; Delay effects; Linear systems; Numerical simulation; Observers; fault estimation; multiple faults; sliding mode observers;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation (ICCA), 2011 9th IEEE International Conference on

Conference_Location

Santiago

ISSN

1948-3449

Print_ISBN

978-1-4577-1475-7

Type

conf

DOI

10.1109/ICCA.2011.6138017

Filename

6138017