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arXiv 0901.1842math.OC
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大系统小增益定理与ISS李雅普诺夫函数的构造

Small gain theorems for large scale systems and construction of ISS Lyapunov functions

Sergey N. Dashkovskiy, Björn S. Rüffer, Fabian R. Wirth

摘要:

我们考虑n个非线性子系统的输入-状态稳定性(ISS)框架中的互连。对于每个子系统的ISS李雅普诺夫函数,将其他子系统作为独立的输入。一个增益矩阵被用来编码网络中的系统的相互依赖性。在增益矩阵诱导的单调算子的小增益假设下,通过适当缩放子系统的各个李雅普诺夫函数,构造性地得到了整个网络的局部Lipschitz连续的ISS李雅普诺夫函数.结果是在ISS的一般公式中得到的,作为推论,得到了关于外部增益的求和、最大化和分离的情况。

英文摘要:

We consider interconnections of n nonlinear subsystems in the input-to-state stability (ISS) framework. For each subsystem an ISS Lyapunov function is given that treats the other subsystems as independent inputs. A gain matrix is used to encode the mutual dependencies of the systems in the network. Under a small gain assumption on the monotone operator induced by the gain matrix, a locally Lipschitz continuous ISS Lyapunov function is obtained constructively for the entire network by appropriately scaling the individual Lyapunov functions for the subsystems. The results are obtained in a general formulation of ISS, the cases of summation, maximization and separation with respect to external gains are obtained as corollaries.

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