Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2

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    The objective of this work is to generalize input excitation designs suggested for system identification of ill-conditioned 2x2 systems to cases with more than two inputs and outputs. The methods are evaluated using a four inputs-four outputs distillation column/stripper system as a case study. The performance of the various procedures is evaluated through the model fit and different plant-friendly indices. The obtained models, and thus the quality of the associated input excitations, are also evaluated through cross validations.
    Original languageUndefined/Unknown
    Title of host publicationProceedings of the 19th IFAC World Congress, 2014
    EditorsBoje Edward, Xia Xiaohua
    PublisherInternational Federation of Automatic Control
    ISBN (Electronic)978-3-902823-62-5
    Publication statusPublished - 2014
    MoE publication typeA4 Article in a conference publication
    Eventconference; 2014-08-24; 2014-08-29 - Cape Town International Convention Centre, Cape Town, South Africa
    Duration: 24 Aug 201429 Aug 2014


    Conferenceconference; 2014-08-24; 2014-08-29


    • Gain directionality
    • Input signals
    • Multivariable systems
    • System identification
    • experiment design
    • ill-conditioned systems

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