Negative imaginary systems theory in the robust control of highly resonant flexible structures

Ian R. Petersen*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

This paper covers recent developments in the theory of negative imaginary systems and their application to the control of highly resonant flexible structures. The theory of negative imaginary systems arose out of a desire to unify a number of classical methods for the control of lightly damped structures with collocated force actuators and position sensors including positive position feedback and integral force feedback. The key result is a stability result which shows why these methods are guaranteed to yield robust closed loop stability in the face of unmodelled spillover dynamics. Related results to be presented connect the theory of negative imaginary systems to positive real systems theory and a negative imaginary lemma has been established which is analogous to the positive real lemma. The paper also presents recent controller synthesis results based on the theory of negative imaginary systems.

Original languageEnglish
Title of host publicationProceedings of the 2011 Australian Control Conference, AUCC 2011
Pages1-6
Number of pages6
Publication statusPublished - 2011
Externally publishedYes
Event1st Australian Control Conference, AUCC 2011 - Melbourne, VIC, Australia
Duration: 10 Nov 201111 Nov 2011

Publication series

NameProceedings of the 2011 Australian Control Conference, AUCC 2011

Conference

Conference1st Australian Control Conference, AUCC 2011
Country/TerritoryAustralia
CityMelbourne, VIC
Period10/11/1111/11/11

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