Reduction Theorems for Hybrid Dynamical Systems

16 Jul 2018  ·  Maggiore Manfredi, Sassano Mario, Zaccarian Luca ·

This paper presents reduction theorems for stability, attractivity, and asymptotic stability of compact subsets of the state space of a hybrid dynamical system. Given two closed sets $\Gamma_1 \subset \Gamma_2 \subset \Re^n$, with $\Gamma_1$ compact, the theorems presented in this paper give conditions under which a qualitative property of $\Gamma_1$ that holds relative to $\Gamma_2$ (stability, attractivity, or asymptotic stability) can be guaranteed to also hold relative to the state space of the hybrid system... As a consequence of these results, sufficient conditions are presented for the stability of compact sets in cascade-connected hybrid systems. We also present a result for hybrid systems with outputs that converge to zero along solutions. If such a system enjoys a detectability property with respect to a set $\Gamma_1$, then $\Gamma_1$ is globally attractive. The theory of this paper is used to develop a hybrid estimator for the period of oscillation of a sinusoidal signal. read more

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Optimization and Control