Decentralized output-feedback control of large-scale nonlinear systems with sensor noise

Authors:
Tengfei Liu;Zhong-Ping Jiang;David J. Hill
Affiliations:
Department of Electrical and Computer Engineering, Polytechnic Institute of New York University, Six Metrotech Center, Brooklyn, NY 11201, USA;Department of Electrical and Computer Engineering, Polytechnic Institute of New York University, Six Metrotech Center, Brooklyn, NY 11201, USA;School of Electrical and Information Engineering, The University of Sydney, NSW 2006, Australia
Venue:
Automatica (Journal of IFAC)
Year:
2012

Citing 7
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Abstract

This paper presents a new tool for decentralized output-feedback control design of large-scale nonlinear systems in the presence of non-smooth sensor noise. Through a recursive control design approach, the closed-loop decentralized system is transformed into a network of input-to-state stable (ISS) systems and the influences of the sensor noise are represented by ISS gains. The decentralized control objective is achieved by applying the cyclic-small-gain theorem to the closed-loop decentralized system. Moreover, the outputs of the closed-loop decentralized system can be driven arbitrarily close to the levels of their corresponding sensor noise.