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Towards a stability theory of general hybrid dynamical systems

Authors
  • Michel, Anthony N.
  • Hu, Bo
Type
Published Article
Journal
Automatica
Publisher
Elsevier
Publication Date
Jan 01, 1999
Accepted Date
Aug 27, 1998
Volume
35
Issue
3
Pages
371–384
Identifiers
DOI: 10.1016/S0005-1098(98)00165-4
Source
Elsevier
Keywords
License
Unknown

Abstract

In recent work we proposed a general model for hybrid dynamical systems whose states are defined on arbitrary metric space and evolve along some notion of generalized abstract time. For such systems we introduced the usual concepts of Lyapunov and Lagrange stability. We showed that it is always possible to transform this class of hybrid dynamical systems into another class of dynamical systems with equivalent qualitative properties, but defined on real time R +=[0, ∞) . The motions of this class of systems are in general discontinuous. This class of systems may be finite or infinite dimensional. For the above discontinuous dynamical systems (and hence, for the above hybrid dynamical systems), we established the Principal Lyapunov Stability Theorems as well as Lagrange Stability Theorems. For some of these, we also established converse theorems. We demonstrated the applicability of these results by means of specific classes of hybrid dynamical systems. In the present paper we continue the work described above. In doing so, we first develop a general comparison theory for the class of hybrid dynamical systems (resp., discontinuous dynamical systems) considered herein, making use of stability preserving mappings. We then show how these results can be applied to establish some of the Principal Lyaponov Stability Theorems. For the latter, we also state and prove a converse theorem not considered previously. Finally, to demonstrate the applicability of our results, we consider specific examples throughout the paper.

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