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A small-gain theorem and construction of sum-type Lyapunov functions for networks of iISS systems

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4 Author(s)
Ito, H. ; Dept. of Syst. Design & Inf., Kyushu Inst. of Technol., Iizuka, Japan ; Zhong-Ping Jiang ; Dashkovskiy, S.N. ; Ruffer, B.S.

This paper gives a solution to the problem of verifying stability of networks consisting of integral input-to state stable (iISS) subsystems. The iISS small-gain theorem developed recently has been restricted to interconnection of two subsystems. For large-scale systems, stability criteria re lying only on gain-type information have been successful only in dealing with input-to-state stable stable (ISS) subsystems. To address the stability problem involving iISS subsystems interconnected in general structure, this paper shows how to construct Lyapunov functions of the network by means of nonlinear sum of individual Lyapunov functions of subsystems given in a dissipation formulation under an appropriate small gain condition.

Published in:

American Control Conference (ACC), 2011

Date of Conference:

June 29 2011-July 1 2011