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

Tengfei Liu, Zhong Ping Jiang, David J. Hill

Research output: Contribution to journalArticlepeer-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 languageEnglish (US)
Pages (from-to)2560-2568
Number of pages9
JournalAutomatica
Volume48
Issue number10
DOIs
StatePublished - 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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