Decentralized output-feedback control of large-scale nonlinear systems based on high-gain multiple time scaling

P. Krishnamurthy, F. Khorrami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A globally stabilizing decentralized outputfeedback controller is proposed for a general class of nonlinear interconnected large-scale systems. The subsystem interconnections and the dynamics of each subsystem feature both parametric and functional uncertainty. The controller design is based on a general high-gain scaling technique that utilizes arbitrary powers (instead of requiring successive powers) of the high-gain parameter with the powers chosen to satisfy certain inequalities depending on system nonlinearities. The scaling induces a weak-Cascading Upper Diagonal Dominance (w-CUDD) structure on the dynamics and allows relaxation of the cascading dominance assumption on upper diagonal terms. Disturbance attenuation properties of the proposed decentralized controller are also investigated.

Original languageEnglish (US)
Title of host publication2009 American Control Conference, ACC 2009
Pages1952-1957
Number of pages6
DOIs
StatePublished - Nov 23 2009
Event2009 American Control Conference, ACC 2009 - St. Louis, MO, United States
Duration: Jun 10 2009Jun 12 2009

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2009 American Control Conference, ACC 2009
CountryUnited States
CitySt. Louis, MO
Period6/10/096/12/09

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Krishnamurthy, P., & Khorrami, F. (2009). Decentralized output-feedback control of large-scale nonlinear systems based on high-gain multiple time scaling. In 2009 American Control Conference, ACC 2009 (pp. 1952-1957). [5160292] (Proceedings of the American Control Conference). https://doi.org/10.1109/ACC.2009.5160292