Optimal and Robust Feedback Controller Estimation for a Vibrating Plate using Subspace Model Identification

P.R. Fraanje, M.H.G. Verhaegen, Niek Doelman, Arthur P. Berkhoff

    Research output: Contribution to journalArticleAcademicpeer-review

    18 Citations (Scopus)


    This paper presents a method to estimate the H2 optimal and a robust feedback controller by means of Subspace Model Identification using the internal model control (IMC) approach. Using IMC an equivalent feed forward control problem is obtained, which is solved by the Causal Wiener filter for the H2 optimal controller. The robust variant, called the Cautious Wiener filter, optimizes the average performance w.r.t. probabilistic model errors. The identification of the Causal and Cautious Wiener filters are control-relevant. The method is illustrated by experiments on a 4-inputs 4-outputs vibrating plate with additional mass variation.
    Original languageUndefined
    Pages (from-to)1017-1028
    Number of pages12
    JournalControl engineering practice
    Issue number8
    Publication statusPublished - Aug 2004


    • IR-75706
    • METIS-221572
    • EWI-13319
    • Subspace methods
    • State space
    • Wiener filter
    • Robust control
    • Active control

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