A fuzzy inference system for fault detection and isolation: application to a fluid system

Christopher J. White, H. Lakany

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    This work focuses on the design and implementation of a fuzzy inference system for fault detection and isolation (FDI) which can learn from example fault data, and the determination of a suitable optimisation strategy for the membership functions. A FDI system was developed which is based on adaptive fuzzy rules. A number of optimisation strategies were then applied; it was found that an evolutionary algorithm not only produced the best results but did so with relatively little processing effort and with excellent consistency. The adaptive fuzzy system, thus optimised, was tested against a neural network, which was trained to produce analogue outputs as an indication of fault magnitude. The fuzzy solution produced the best accuracy. We can conclude that an adaptive fuzzy inference system for FDI, using an evolutionary algorithm to learn from examples, can provide an accurate and readily comprehensible solution to diagnosing and evaluating fluid process plant faults.
    Original languageEnglish
    Pages (from-to)1021-1033
    Number of pages13
    JournalExpert Systems with Applications
    Volume35
    Issue number3
    DOIs
    Publication statusPublished - Oct 2008

    Keywords

    • fuzzy inference system
    • fault detection
    • fluid system
    • bioengineering
    • optimisation

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