Estimation of Model Uncertainties in Closed-loop Systems

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    Abstract

    This paper describe a method for estimation of parameters or uncertainties in closed-loop systems. The method is based on an application of the dual YJBK (after Youla, Jabr, Bongiorno and Kucera) parameterization of all systems stabilized by a given controller. The dual YJBK transfer function is a measure for the variation in the system seen through the feedback controller. It is shown that it is possible to isolate a certain number of parameters or uncertain blocks in the system exactly. This is obtained by modifying the feedback controller through the YJBK transfer function together with pre- and post-filters. The estimation is then derived using standard methods.
    Original languageEnglish
    Title of host publicationEstimation of Model Uncertainities in Closed-loop Systems
    Place of PublicationWashington
    PublisherAmerican Control Conference
    Publication date2008
    Pages5186-5191
    ISBN (Print)978-1-4244-2078-0
    DOIs
    Publication statusPublished - 2008
    EventEstimation of Model Uncertainties in Closed-loop Systems -
    Duration: 1 Jan 2008 → …

    Conference

    ConferenceEstimation of Model Uncertainties in Closed-loop Systems
    Period01/01/2008 → …

    Bibliographical note

    Copyright: 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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