Searching for robust minimal-order compensators

Qian Wang, Robert F. Stengel

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    A method of designing a family of robust compensators for a single-input/single-output linear system is presented. Each compensator’s transfer function is found by using a genetic-algorithm search for numerator and denominator coefficients. The search minimizes the probabilities of unsatisfactory stability and performance subject to real parameter variations of the plant. As the search progresses, probabilities are estimated by Monte Carlo evaluation. The design procedure employs a sweep from the lowest feasible transfer-function order to higher order, terminating either when design goals have been achieved or when no further improvement in robustness is evident. The method provides a means for estimating the best possible compensation of a given order based on repeated searches.

    Original languageEnglish (US)
    Pages (from-to)233-236
    Number of pages4
    JournalJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
    Volume123
    Issue number2
    DOIs
    StatePublished - Jan 1 2001

    Fingerprint

    compensators
    transfer functions
    Transfer functions
    linear systems
    stopping
    genetic algorithms
    Linear systems
    estimating
    Genetic algorithms
    evaluation
    output
    coefficients
    Compensation and Redress

    All Science Journal Classification (ASJC) codes

    • Control and Systems Engineering
    • Information Systems
    • Instrumentation
    • Mechanical Engineering
    • Computer Science Applications

    Cite this

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    abstract = "A method of designing a family of robust compensators for a single-input/single-output linear system is presented. Each compensator’s transfer function is found by using a genetic-algorithm search for numerator and denominator coefficients. The search minimizes the probabilities of unsatisfactory stability and performance subject to real parameter variations of the plant. As the search progresses, probabilities are estimated by Monte Carlo evaluation. The design procedure employs a sweep from the lowest feasible transfer-function order to higher order, terminating either when design goals have been achieved or when no further improvement in robustness is evident. The method provides a means for estimating the best possible compensation of a given order based on repeated searches.",
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    Searching for robust minimal-order compensators. / Wang, Qian; Stengel, Robert F.

    In: Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME, Vol. 123, No. 2, 01.01.2001, p. 233-236.

    Research output: Contribution to journalArticle

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