Model reference adaptive control and adaptive stability augmentation

Arne Henningsen, Ole Ravn

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    A comparison of the standard concepts in MRAC design suggests that a combination of the implicit and the explicit design techniques may lead to an improvement of the overall system performance in the presence of unmodelled dynamics. Using the ideas of adaptive stability augmentation a combined stability augmented model reference design is proposed. By utilizing the closed-loop control error, a simple auxiliary controller is tuned, using a normalized MIT rule for the parameter adjustment. The MIT adjustment is protected against the effects of unmodelled dynamics by lowpass filtering of the gradient. The proposed method is verified through simulation results indicating that the method may lead to an improvement of the model reference controller in the presence of unmodelled dynamics
    Original languageEnglish
    Title of host publicationAdaptive Systems in Control and Signal Processing 1992. Selected Papers from the 4th IFAC Symposium
    Publication date1993
    Pages209-214
    Publication statusPublished - 1993
    Event4th IFAC Symposium on Adaptive Systems in Control and Signal Processing 1992 -
    Duration: 1 Jan 1992 → …

    Conference

    Conference4th IFAC Symposium on Adaptive Systems in Control and Signal Processing 1992
    Period01/01/1992 → …

    Keywords

    • closed loop systems

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