Extending small gain and passivity theory for large-scale system interconnections

Wynita M. Griggs, S. Shravan K. Sajja, Brian D.O. Anderson, Robert N. Shorten

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Abstract

In this paper, we use classical Nyquist arguments to derive stability results for large-scale interconnections of mixed linear, time-invariant (LTI) systems. We compare our results with P. J. Moylan and D. J. Hill, Stability criteria for large-scale systems, IEEE Transactions on Automatic Control, vol. 23, no. 2, 1978, pp. 143-149. Our results suggest that, if one relaxes the assumptions on the subsystems in an interconnection from assumptions of passivity or small gain to assumptions of mixedness, then the Moylan- and Hill-like conditions on the interconnection matrix become more stringent. We also explore the stability of large-scale, time-varying interconnections of strictly positive real systems. We determine a condition that guarantees the existence of a Lyapunov function for the interconnected system.

Original languageEnglish
Title of host publication2012 American Control Conference, ACC 2012
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages6376-6381
Number of pages6
ISBN (Print)9781457710957
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventAmerican Control Conference 2012 - Montreal, Canada
Duration: 27 Jun 201229 Jun 2012
https://ieeexplore.ieee.org/xpl/conhome/6297579/proceeding (Proceedings)

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Conference

ConferenceAmerican Control Conference 2012
Abbreviated titleACC 2012
Country/TerritoryCanada
CityMontreal
Period27/06/1229/06/12
Internet address

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