On the passivity of general nonlinear systems

Eva Navarro Lopez, H. Sira-Ramirez, E.M. Navarro-Lopez

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    Abstract

    We revisit the definitions of passivity and feedbackpassivity in the context of general continuous-time singleinput, single output, systems which are jointly nonlinearin the states and the control input. Neccessary conditionsare given for the characterization of passive systems and extendthe well known Kalman-Yakubovich-Popov (KYP) conditions.Passivity concepts are used for studying the stabilizationproblem of general nonlinear systems. We extend the‘Energy Shaping and Damping Injection’ (ESDI) controllerdesign methodology to the studied class of systems. A semicanonicalform for nonlinear systems which is of the GeneralizedHamiltonian type, including dissipation terms, is alsoproposed. Passive and strictly passive systems are shown tobe easily characterized in terms of such a canonical form
    Original languageEnglish
    Title of host publication14th Symposium on Mathematical Theory of Networks and Systems
    Place of PublicationFrance
    Pages1-6
    Number of pages6
    Publication statusPublished - Jun 2000
    Event14th Symposium on Mathematical Theory of Networks and Systems - Perpignan, France
    Duration: 19 Jun 200023 Jun 2000
    http://www.cs.man.ac.uk/~navarroe/papers/enavarro_mtns00.pdf

    Conference

    Conference14th Symposium on Mathematical Theory of Networks and Systems
    CityPerpignan, France
    Period19/06/0023/06/00
    Internet address

    Keywords

    • Passivity properties
    • Feedback passivity
    • Kalman-Yakubovich-Popov Lemma
    • Energy shaping and damping injection
    • Passivity-based control

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