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Relating sampling period and control delay in distributed control systems
KTH, Skolan för elektro- och systemteknik (EES), Elektriska maskiner och effektelektronik.ORCID-id: 0000-0002-0744-2552
2005 (Engelska)Ingår i: Eurocon 2005: The International Conference on Computer as a Tool, Vol 1 and 2 , Proceedings, NEW YORK: IEEE , 2005, s. 274-277Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

The control delay in distributed control systems may be compensated on-line or off-line depending on the required quality of the output, available computational power of the controller node, time stamping and clock synchronizing facilities etc. Irrespective of the compensation technique, there is an upper bound to the constant or variable control delay, which is decided by the plant, controller and the selected sampling period of the distributed computer controlled system. It is shown that in general, if the control delay exceeds the sampling period, the system becomes multi-rate; deteriorate performance as the plant updates do not correspond to the output samples. This paper introduces an adaptive sampling scheme to ensure the control delay is less than the sampling period in steady state and uses the maximum tolerable delay of the system at a particular sampling interval to ensure stable transform from one sampling period to another.

Ort, förlag, år, upplaga, sidor
NEW YORK: IEEE , 2005. s. 274-277
Nyckelord [en]
adaptive sampling scheme, control delay, distributed control system
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:kth:diva-36567ISI: 000237248900070Scopus ID: 2-s2.0-33847779225ISBN: 1-4244-0049-X (tryckt)OAI: oai:DiVA.org:kth-36567DiVA, id: diva2:430909
Konferens
International Conference on Computer as a Tool (EUROCON 2005) Belgrade, SERBIA MONTENEG, NOV 21-24, 2005
Anmärkning
QC 20110713Tillgänglig från: 2011-07-13 Skapad: 2011-07-13 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

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