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Structural Analysis for Fault Diagnosis of DAE Systems Utilizing MSS Sets
Linköping University, Department of Electrical Engineering, Vehicular Systems.
Linköping University, Department of Electrical Engineering, Vehicular Systems.
2002 (English)Conference paper, (Refereed)
Abstract [en]

When designing model-based fault-diagnosis systems, the use of consistency relations (also called e.g. parity relations) is a common choice. Different subsets are sensitive to different subsets of faults, and thereby isolation can be achieved. This paper presents an algorithm for finding a small set of submodels that can be used to derive consistency relations with highest possible diagnosis capability. The algorithm handles differential algebraic models and is based on graph theoretical reasoning about structure of the model. An important step, towards finding these submodels and therefore also towards finding consistency relations, is to find all minimal structurally singular (MSS) sets of equations. These sets characterize the fault diagnosability. The algorithm is successfully applied to a large nonlinear industrial example, a paper plant.

Place, publisher, year, edition, pages
2002.
Series
IFAC World Congress
Keyword [en]
Diagnosis
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-138373OAI: oai:DiVA.org:liu-138373DiVA: diva2:1109453
Conference
IFAC World Congress
Available from: 2017-06-14 Created: 2017-06-14 Last updated: 2017-06-14

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
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  • nn-NB
  • sv-SE
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Output format
  • html
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