Analysis of discrete-time piecewise affine and hybrid systems |
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Authors: | Giancarlo Francesco Alessandro Domenico and Manfred |
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Affiliation: | Automatic Control Laboratory, ETH - Swiss Federal Institute of Technology, ETHZ - ETL, CH-8092, Zurich, Switzerland |
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Abstract: | In this paper, we present various algorithms both for stability and performance analysis of discrete-time piece-wise affine (PWA) systems. For stability, different classes of Lyapunov functions are considered and it is shown how to compute them through linear matrix inequalities that take into account the switching structure of the systems. We also show that the continuity of the Lyapunov function is not required in discrete time. Moreover, the tradeoff between the degree of conservativeness and computational requirements is discussed. Finally, by using arguments from the dissipativity theory for nonlinear systems, we generalize our approach to analyze the l2-gain of PWA systems. |
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Keywords: | Piecewise affine systems Hybrid systems Stability l2-gain Linear matrix inequalities |
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