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

Tengfei Liu; Zhong Ping Jiang; David J. Hill

doi:10.1016/j.automatica.2012.06.054

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

Tengfei Liu, Zhong Ping Jiang, David J. Hill

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	2560-2568
Number of pages	9
Journal	Automatica
Volume	48
Issue number	10
DOIs	https://doi.org/10.1016/j.automatica.2012.06.054
State	Published - Oct 2012

Keywords

Decentralized control
Input-to-state stability (ISS)
Large-scale nonlinear systems
Output feedback
Sensor noise
Small-gain

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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title = "Decentralized output-feedback control of large-scale nonlinear systems with sensor noise",

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.",

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AB - 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.

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