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Output feedback predictor compensating time-delays in distributed real-time systems
KTH, Tidigare Institutioner, Elektrotekniska system.
KTH, Tidigare Institutioner, Elektrotekniska system.ORCID-id: 0000-0002-0744-2552
2004 (Engelska)Ingår i: Proceedings of the Sixth IASTED International Conference on Intelligent Systems and Control / [ed] Hamza, MH, CALGARY: ACTA PRESS , 2004, s. 162-167Konferensbidrag, Publicerat paper (Refereegranskat)
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.

Ort, förlag, år, upplaga, sidor
CALGARY: ACTA PRESS , 2004. s. 162-167
Nyckelord [en]
distributed, real-time, time-delay, output feedback, predictor based compensator
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:kth:diva-44727ISI: 000228556100029Scopus ID: 2-s2.0-10444237315ISBN: 0-88986-436-5 (tryckt)OAI: oai:DiVA.org:kth-44727DiVA, id: diva2:451528
Konferens
6th IASTED International Conference on Intelligent Systems and Control Location: Honolulu, HI Date: AUG 23-25, 2004
Anmärkning
QC 20111026Tillgänglig från: 2011-10-26 Skapad: 2011-10-25 Senast uppdaterad: 2011-11-02Bibliografiskt granskad

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