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Approach to fault detection of time-delay systems using functional observers

Huong,DC, Trinh,H, Tran Manh, Hieu and Fernando,T 2014, Approach to fault detection of time-delay systems using functional observers, Electronics Letters, vol. 50, no. 16, pp. 1132-1134, doi: 10.1049/el.2014.1480.

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Title Approach to fault detection of time-delay systems using functional observers
Author(s) Huong,DC
Trinh,HORCID iD for Trinh,H orcid.org/0000-0003-3438-9969
Tran Manh, Hieu
Fernando,T
Journal name Electronics Letters
Volume number 50
Issue number 16
Start page 1132
End page 1134
Total pages 2
Publisher Institution of Engineering and Technology
Place of publication London, Eng.
Publication date 2014-07-31
ISSN 0013-5194
Keyword(s) Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Summary A new methodology is reported for designing functional observers to detect actuator faults of a class of time-delay systems where the matrix pair (A, C) is not observable. First, a generalised state transformation is used to transform the system into new coordinates where the delay term associated with the state vector is injected into the system's output and input. Then, a minimum-order functional observer is designed to construct a residual function that can trigger system faults. The finding is significant as it is now possible to detect faults of time-delay systems where the pair (A, C) is not required to be observable. A numerical example is given to illustrate the effectiveness of the proposed design approach. © The Institution of Engineering and Technology 2014.
Language eng
DOI 10.1049/el.2014.1480
Field of Research 010203 Calculus of Variations, Systems Theory and Control Theory
010204 Dynamical Systems in Applications
090602 Control Systems, Robotics and Automation
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DP130101532
Copyright notice ©2014, Institution of Engineering and Technology
Persistent URL http://hdl.handle.net/10536/DRO/DU:30068301

Document type: Journal Article
Collection: School of Engineering
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