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arXiv 2006.07227math.OC
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切换系统的极大极小李雅普诺夫函数及相关的微分包含

Max-Min Lyapunov Functions for Switched Systems and Related Differential Inclusions

Matteo Della Rossa, Aneel Tanwani, Luca Zaccarian

摘要:

从有限族连续可微正定函数出发,研究了由极大极小组合得到的函数是李雅普诺夫函数的条件,建立了两类非线性动力系统的稳定性:a)微分包含,其中集值右端包括有限个向量场的凸包,以及b)具有依赖于状态的切换信号的自主切换系统。我们调查广义概念的方向导数,这些最大-最小的功能,并使用它们在不同程度的保守性,其中更保守的条件是数值上更容易处理的推导稳定性条件。所提出的结构还提供了非凸的李雅普诺夫函数,这是有用的系统与状态相关的切换,不承认凸的李雅普诺夫函数。几个例子来说明的结果。

英文摘要:

Starting from a finite family of continuously differentiable positive definite functions, we study conditions under which a function obtained by max-min combinations is a Lyapunov function, establishing stability for two kinds of nonlinear dynamical systems: a) Differential inclusions where the set-valued right-hand-side comprises the convex hull of a finite number of vector fields, and b) Autonomous switched systems with a state-dependent switching signal. We investigate generalized notions of directional derivatives for these max-min functions, and use them in deriving stability conditions with various degrees of conservatism, where more conservative conditions are numerically more tractable. The proposed constructions also provide nonconvex Lyapunov functions, which are shown to be useful for systems with state-dependent switching that do not admit a convex Lyapunov function. Several examples are included to illustrate the results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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