AN APPROACH FOR RELAY-BASED IDENTIFICATION OF ANISOCHRONIC MODELS

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

AN APPROACH FOR RELAY-BASED IDENTIFICATION OF ANISOCHRONIC MODELS

Popis výsledku v původním jazyce

Models of dynamic systems containing both input and state delays were labeled as anisochronic. These models have some practical and attractive features, e.g. they enable to capture the dynamics of systems with very high order and mathematical models of many processes results in anisochronic form. In this paper an engineering utilizable idea of the identification principle for anisochronic models based on limit cycles is investigated. Unlike traditionally approaches connected with the frequency analysisof a transfer function, the proposed methodology is based on computation with functional differential equation only. Identified parameters are obtained analytically. Parameter estimation is also improved using ATV+ technique which required two relay tests. Some numerical aspects of the proposed method are discussed. The method is verified by an illustrative example in which parameters of a tenth order system are approximated by a first order anisochronic model. The developed approach can

Název v anglickém jazyce

AN APPROACH FOR RELAY-BASED IDENTIFICATION OF ANISOCHRONIC MODELS

Popis výsledku anglicky

Models of dynamic systems containing both input and state delays were labeled as anisochronic. These models have some practical and attractive features, e.g. they enable to capture the dynamics of systems with very high order and mathematical models of many processes results in anisochronic form. In this paper an engineering utilizable idea of the identification principle for anisochronic models based on limit cycles is investigated. Unlike traditionally approaches connected with the frequency analysisof a transfer function, the proposed methodology is based on computation with functional differential equation only. Identified parameters are obtained analytically. Parameter estimation is also improved using ATV+ technique which required two relay tests. Some numerical aspects of the proposed method are discussed. The method is verified by an illustrative example in which parameters of a tenth order system are approximated by a first order anisochronic model. The developed approach can

Druh

D - Stať ve sborníku

CEP obor

BC - Teorie a systémy řízení

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 27th IASTED International Conference on Modelling, Identification and Control

ISBN

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ISSN

1025-8973

e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

IASTED

Místo vydání

Innsbruck

Místo konání akce

Innsbruck, Rakousko

Datum konání akce

1. 1. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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