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Fault Detection Observer Design in Low Frequency Domain for Linear Time-delay Systems

โœ Scribed by Xiao-Jian LI; Guang-Hong YANG

Publisher
Elsevier
Year
2009
Weight
217 KB
Volume
35
Category
Article
ISSN
1874-1029

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โœฆ Synopsis

This paper deals with the robust fault detection (FD) problem in low frequency domain for linear time-delay systems. The Hโˆž norm and Hindex are used to measure the robustness to unknown inputs and the sensitivity to faults, respectively. The main results include derivation of a sufficient condition for the existence of a robust FD observer and its construction based on the linear matrix inequality (LMI) solution parameters. Finally, numerical simulations show the effectiveness of the presented methodology. Key words Fault detection (FD), time-delay system, low frequency range, linear matrix inequality (LMI)

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