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Output feedback predictor compensating time-delays in distributed real-time systems
KTH, Superseded Departments, Electrical Systems.
KTH, Superseded Departments, Electrical Systems.ORCID iD: 0000-0002-0744-2552
2004 (English)In: Proceedings of the Sixth IASTED International Conference on Intelligent Systems and Control / [ed] Hamza, MH, CALGARY: ACTA PRESS , 2004, 162-167 p.Conference paper, Published paper (Refereed)
Abstract [en]

Inherent time-delays in distributed real-time control systems can deorade the performance or unstable the system unless treated properly. Standard delay compensation schemes usually include time stamped measurements, which require clock synchronization at different nodes. This needs periodic re-synchronization to minimize the impact of clock drift. consuming additional bandwidth. Further, the controller to actuator delay is unknown prior to the controller calculation, where probability distribution based complicated methods are required, to know it in advance. In this paper, a plant model based predictor is cascaded to the state observer to predict the states corresponding to the next sample. These states are then used in the controller to derive the next control signal, which is released C just after reading the next sample. This completely eliminates clock synchronization and complications in delay compensation. The proposed method is implemented in simulation in a real-time environment for open loop stable and unstable systems.

Place, publisher, year, edition, pages
CALGARY: ACTA PRESS , 2004. 162-167 p.
Keyword [en]
distributed, real-time, time-delay, output feedback, predictor based compensator
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-44727ISI: 000228556100029Scopus ID: 2-s2.0-10444237315ISBN: 0-88986-436-5 (print)OAI: oai:DiVA.org:kth-44727DiVA: diva2:451528
Conference
6th IASTED International Conference on Intelligent Systems and Control Location: Honolulu, HI Date: AUG 23-25, 2004
Note
QC 20111026Available from: 2011-10-26 Created: 2011-10-25 Last updated: 2011-11-02Bibliographically approved

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Leksell, Mats

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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