期刊
IEEE CONTROL SYSTEMS LETTERS
卷 7, 期 -, 页码 781-786出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCSYS.2022.3226627
关键词
Graph theory; memory-based conditions; multiple Lyapunov functions; switched systems
We study path-complete Lyapunov functions as stability criteria for switched systems, combining a combinatorial component (automaton) and a functional component (template of candidate Lyapunov functions). We propose a class of memory-based Lyapunov function criteria that generalize existing techniques. Our main result shows the equivalence between any path-complete Lyapunov function and a memory-based Lyapunov function defined on a different template. We demonstrate the numerical efficiency of our approach through an academic example.
We study path-complete Lyapunov functions, which are stability criteria for switched systems, described by a combinatorial component (namely, an automaton), and a functional component (a set of candidate Lyapunov functions, called the template). We introduce a class of criteria based on what we call memory-based Lyapunov functions, which generalize several techniques in the literature. Our main result is an equivalence result: any path-complete Lyapunov function is equivalent to a memory-based Lyapunov function, however defined on another template. We show the usefulness of our result in terms of numerical efficiency via an academic example.
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