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    Stability Criteria for Switched and Hybrid Systems.

    Shorten, Robert N. and Wirth, Fabian and Mason, Oliver and Wulff, Kai and King, Christopher (2007) Stability Criteria for Switched and Hybrid Systems. SIAM Review - The Flagship Journal of the Society for Industrial and Applied Mathematics, 49 (4). pp. 545-592. ISSN 1095-7200

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    The study of the stability properties of switched and hybrid systems gives rise to a number of interesting and challenging mathematical problems. The objective of this paper is to outline some of these problems, to review progress made in solving them in a number of diverse communities, and to review some problems that remain open. An important contribution of our work is to bring together material from several areas of research and to present results in a unified manner. We begin our review by relating the stability problem for switched linear systems and a class of linear differential inclusions. Closely related to the concept of stability are the notions of exponential growth rates and converse Lyapunov theorems, both of which are discussed in detail. In particular, results on common quadratic Lyapunov functions and piecewise linear Lyapunov functions are presented, as they represent constructive methods for proving stability and also represent problems in which significant progress has been made. We also comment on the inherent difficulty in determining stability of switched systems in general, which is exemplified by NP-hardness and undecidability results. We then proceed by considering the stability of switched systems in which there are constraints on the switching rules, through both dwell-time requirements and state-dependent switching laws. Also in this case the theory of Lyapunov functions and the existence of converse theorems are reviewed. We briefly comment on the classical Lur’e problem and on the theory of stability radii, both of which contain many of the features of switched systems and are rich sources of practical results on the topic. Finally we present a list of questions and open problems which provide motivation for continued research in this area.

    Item Type: Article
    Keywords: Hybrid systems; Switched systems; Stability, growth rates; Converse Lyapunov theorem, Common quadratic Lyapunov functions; Dwell time; Lur’e problem; Stability radii.
    Academic Unit: Faculty of Science and Engineering > Mathematics and Statistics
    Item ID: 1757
    Depositing User: Hamilton Editor
    Date Deposited: 21 Dec 2009 16:52
    Journal or Publication Title: SIAM Review - The Flagship Journal of the Society for Industrial and Applied Mathematics
    Publisher: SIAM - Society for Industrial and Applied Mathematics
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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