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A review of process fault detection and diagnosis part II: Qualitative models and search strategies
Venkatasubramanian V., , Kavuri S.N.
Published in Elsevier Ltd
2003
Volume: 27
   
Issue: 3
Pages: 313 - 326
Abstract
In this part of the paper, we review qualitative model representations and search strategies used in fault diagnostic systems. Qualitative models are usually developed based on some fundamental understanding of the physics and chemistry of the process. Various forms of qualitative models such as causal models and abstraction hierarchies are discussed. The relative advantages and disadvantages of these representations are highlighted. In terms of search strategies, we broadly classify them as topographic and symptomatic search techniques. Topographic searches perform malfunction analysis using a template of normal operation, whereas, symptomatic searches look for symptoms to direct the search to the fault location. Various forms of topographic and symptomatic search strategies are discussed. © 2002 Published by Elsevier Science Ltd.
About the journal
JournalData powered by TypesetComputers and Chemical Engineering
PublisherData powered by TypesetElsevier Ltd
ISSN00981354
Open AccessNo