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Robust Control of SISO Systems Subject to Hard Input Constraints
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2001 (English)Report (Other academic)
Abstract [en]

The design of robust controllers that guarantee prescribed hard bounds on the control signal when facing model uncertainty is considered. Our approach to avoid a conservative design is to describe the external signals quite accurate by means of admissible sets, hard bounded in amplitude and rate. The core problem to solve is the calculation of the maximum output amplitude of a set of systems. This problem will be solved for a certain parameterization of the set in a computationally attractive way. Controller design can then be formulated by employing a double Youla parameterization of uncertain plant and stabilizing controllers. We demonstrate, how the employed model uncertainty can be identified by means of standard identification techniques. Moreover, we present a combination with an MPC scheme, that allows us to obtain faster time responses and invites the possibility to encounter for time domain and frequency domain performance specifications.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2001. , 7 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2349
Keyword [en]
Constraint control, Saturation avoidance, Hard bounds, Robust control, Double youla parameterization
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-55788ISRN: LiTH-ISY-R-2349OAI: oai:DiVA.org:liu-55788DiVA: diva2:316543
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2014-10-03Bibliographically approved

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Automatic ControlThe Institute of Technology
Control Engineering

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf