A 'Mixed' small gain and passivity theorem for an interconnection of linear time-invariant systems

Wynita Griggs, Brian Anderson, Alexander Lanzon

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    10 Citations (Scopus)

    Abstract

    We show that the negative feedback interconnection of two causal, stable, linear time-invariant systems with a 'mixed' small gain and passivity frequency domain property is guaranteed to be finite-gain stable. This 'mixed' small gain and passivity property refers to the characteristic that the frequency range -∞ < ω < ∞ can be divided into intervals for which the two systems in the interconnection are both: a) 'input and output strictly passive' (and one or both of the systems may or may not have 'gain less than one'); or b) 'input and output strictly passive and with gain less than one'; or c) 'with gain less than one' (and one or both of the systems may or may not be 'input and output strictly passive'). The 'mixed' small gain and passivity property is described mathematically using the notion of dissipativity of systems, and finite-gain stability of the interconnection is proven via a stability result for dissipative interconnected systems.

    Original languageEnglish
    Title of host publication2007 European Control Conference, ECC 2007
    Place of PublicationKos, Greece
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2410-2416
    Number of pages7
    EditionPeer Reviewed
    ISBN (Electronic)9783952417386
    ISBN (Print)9783952417386
    DOIs
    Publication statusPublished - 2007
    Event2007 9th European Control Conference, ECC 2007 - Kos, Greece
    Duration: 2 Jul 20075 Jul 2007

    Publication series

    Name2007 European Control Conference, ECC 2007

    Conference

    Conference2007 9th European Control Conference, ECC 2007
    Country/TerritoryGreece
    CityKos
    Period2/07/075/07/07

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