Estimation of the parameters of a delayed process using open loop time domain techniques

Yue Zhang

doi:10.21427/ckx8-rn59

Estimation of the parameters of a delayed process using open loop time domain techniques

Yue Zhang

Research output: Contribution to conference › Paper › peer-review

Abstract

All process investigations should start by a determination of the process model. The modeling strategy used will influence the value of the model parameters, which will in turn affect the controller values determined from tuning rules. This paper will describe an analytical method to identify a model of the dynamic characteristics of a process with a delay by using a tangent and point method, as originally suggested by Murrill, 1967. The methodology has been applied to eight benchmark transfer functions suitable for testing PID controllers, as suggested by Åström and Hägglund, 2000. The main advantages of the modeling approach are that it is simple and it will give more accurate, repeatable results than one based on the more traditional graphical approach.

Original language	English
DOIs	https://doi.org/10.21427/ckx8-rn59
Publication status	Published - 2005
Externally published	Yes
Event	4th Wismarer Automatisierungssymposium - Wismar, Germany Duration: 22 Sep 2005 → 23 Sep 2005

Conference

Conference	4th Wismarer Automatisierungssymposium
Country/Territory	Germany
City	Wismar
Period	22/09/05 → 23/09/05

Keywords

process model
model parameters
controller values
analytical method
dynamic characteristics
delay
tangent and point method
benchmark transfer functions
PID controllers
modeling approach
accurate results
graphical approach

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10.21427/ckx8-rn59Licence: CC BY-NC-SA

Cite this

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title = "Estimation of the parameters of a delayed process using open loop time domain techniques",

abstract = "All process investigations should start by a determination of the process model. The modeling strategy used will influence the value of the model parameters, which will in turn affect the controller values determined from tuning rules. This paper will describe an analytical method to identify a model of the dynamic characteristics of a process with a delay by using a tangent and point method, as originally suggested by Murrill, 1967. The methodology has been applied to eight benchmark transfer functions suitable for testing PID controllers, as suggested by {\AA}str{\"o}m and H{\"a}gglund, 2000. The main advantages of the modeling approach are that it is simple and it will give more accurate, repeatable results than one based on the more traditional graphical approach.",

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AB - All process investigations should start by a determination of the process model. The modeling strategy used will influence the value of the model parameters, which will in turn affect the controller values determined from tuning rules. This paper will describe an analytical method to identify a model of the dynamic characteristics of a process with a delay by using a tangent and point method, as originally suggested by Murrill, 1967. The methodology has been applied to eight benchmark transfer functions suitable for testing PID controllers, as suggested by Åström and Hägglund, 2000. The main advantages of the modeling approach are that it is simple and it will give more accurate, repeatable results than one based on the more traditional graphical approach.

KW - process model

KW - model parameters

KW - controller values

KW - analytical method

KW - dynamic characteristics

KW - delay

KW - tangent and point method

KW - benchmark transfer functions

KW - PID controllers

KW - modeling approach

KW - accurate results

KW - graphical approach

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M3 - Paper

T2 - 4th Wismarer Automatisierungssymposium

Y2 - 22 September 2005 through 23 September 2005

ER -

Estimation of the parameters of a delayed process using open loop time domain techniques

Abstract

Conference

Keywords

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Cite this