Definitions of incremental stability for hybrid systems

R. Postoyan, J. J B Biemond, W.P.M.H. Heemels, N. Van De Wouw

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

5 Citations (Scopus)

Abstract

The analysis of incremental stability properties typically involves measuring the distance between any pair of solutions of a given dynamical system, corresponding to different initial conditions, at the same time instant. This approach is not directly applicable for hybrid systems in general. Indeed, hybrid systems generate solutions that are defined with respect to hybrid times, which consist of both the continuous time elapsed and the discrete time, that is the number of jumps the solution has experienced. Two solutions of a hybrid system do not a priori have the same time domain, and we may therefore not be able to compare them at the same hybrid time instant. To overcome this issue, we invoke graphical closeness concepts. We present definitions for incremental stability depending on whether incremental asymptotic stability properties hold with respect to the hybrid time, the continuous time, or the discrete time, respectively. Examples are provided throughout the paper to illustrate these definitions, and the relations between these three incremental stability notions are investigated. The definitions are shown to be consistent with those available in the literature for continuous-time and discrete-time systems.

Original languageEnglish
Title of host publicationProceedings of the 2015 IEEE 54th Annual Conference on Decision and Control
EditorsY. Ohta, M. Sampei, A. Astolfi
Place of PublicationPiscataway, NJ, USA
PublisherIEEE
Pages5544-5549
ISBN (Electronic)978-1-4799-7886-1
DOIs
Publication statusPublished - 2015
Event54th IEEE Conference on Decision and Control, CDC 2015 - Osaka, Japan
Duration: 15 Dec 201518 Dec 2015
Conference number: 54

Conference

Conference54th IEEE Conference on Decision and Control, CDC 2015
Abbreviated titleCDC 2015
Country/TerritoryJapan
CityOsaka
Period15/12/1518/12/15

Keywords

  • Asymptotic stability
  • Convergence
  • Discrete-time systems
  • Euclidean distance
  • Hybrid power systems
  • Stability analysis
  • Time-domain analysis

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