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    Stabilising PID tuning for a class of fourth-order integrating nonminimum-phase systems

    Access Status
    Fulltext not available
    Authors
    Seer, Q.
    Nandong, Jobrun
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Seer, Q. and Nandong, J. 2017. Stabilising PID tuning for a class of fourth-order integrating nonminimum-phase systems. International Journal of Control: pp. 1-17.
    Source Title
    International Journal of Control
    DOI
    10.1080/00207179.2017.1387289
    ISSN
    0020-7179
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/72451
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Informa UK Limited, trading as Taylor & Francis Group Fed-batch fermentation processes are commonly used in bioprocessing industry. A fed-batch fermentation process often exhibits integrating/unstable type of dynamics with multiple right-half plane zeros. A class of fourth-order integrating model can be used to adequately represent such a complex dynamics of the fed-batch fermentation process. In this paper, rigorous stability analysis of proportional-integral-derivative (PID) controller based on the Routh-Hurwitz criteria for the fourth-order integrating system is presented. A set of all stabilising PID controller parameter regions is established. Based on these stabilising regions, a general PID controller tuning procedure is proposed for the fourth-order integrating system with two right-half plane zeros. Numerical study shows that based on the proposed tuning procedure, a low-order PID controller can outperform a fifth-order optimal LQG controller in terms of servo and regulatory controls.

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