Min-max prefilter design in two-degree-of-freedom control systems

Ramon Vilanova, Ignasi Serra

    Research output: Contribution to journalArticleResearchpeer-review


    This paper presents an approach to the design of the feedforward or prefilter components in a Two-Degree-Of-Freedom (2-DOF) configuration. The approach is based on the use of a Model Reference specification for the desired input-output relation. An optimal model matching problem in the min-max sense is solved in order to get the optimal prefilter. As a second step, a detuning procedure is proposed in order to take into account for the effect on the control signal. After an analysis of the 2-DOF configurations found in the literature it is seen that the proposed approach is not limited to a specific controller structure.
    Original languageEnglish
    Pages (from-to)449-477
    JournalSystems Analysis Modelling Simulation
    Issue number4
    Publication statusPublished - 1 Jan 1999


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