Modulating Function Based Fault Detection for Parabolic Systems with Polynomial Faults

This paper presents an algebraic approach to the fault detection for parabolic systems. It is assumed that the unknown time-varying faults are of polynomial type. In addition to the fault, the system is subject to a disturbance that can be separated into a polynomial deterministic part and a remaini...

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Bibliographic Details
Published inIFAC-PapersOnLine Vol. 51; no. 24; pp. 359 - 366
Main Authors Fischer, F., Deutscher, J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2018
Subjects
Distributed-parameter systems
fault detection
modulating function
set-point change
trajectory planning
modulating function
set-point change
Distributed-parameter systems
fault detection
trajectory planning
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Summary:This paper presents an algebraic approach to the fault detection for parabolic systems. It is assumed that the unknown time-varying faults are of polynomial type. In addition to the fault, the system is subject to a disturbance that can be separated into a polynomial deterministic part and a remaining bounded part. While the deterministic part is isolated from the fault, the bounded part is taken into account by introducing a threshold. For this setup, the modulating function approach is utilized to determine a directly implementable algebraic equation for the fault detection, which depends only on measurements. The results of the paper are illustrated for a faulty diffusion-reaction system.
ISSN:2405-8963
2405-8963
DOI:10.1016/j.ifacol.2018.09.602