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Transfer Function Parameter Identification by Modified Relay Feedback

Soltesz, Kristian LU orcid ; Hägglund, Tore LU and Åström, Karl Johan LU (2010) American Control Conference, 2010 p.2164-2169
Abstract
This paper proposes a transfer function parameter identification method, applicable to SISO systems of any order. Parameter identification is posed as a (non-convex) squared output error minimization problem, numerically solved utilizing Newton-Raphson iteration with back tracking line search. Focus lies on computing the cost function gradient and Hessian with respect to the parameter vector and on finding a feasible start point. The method is demonstrated for FOTD model identification. A modified relay non-linearity is utilized in order to obtain most input signal energy at a predefined phase, without a priori system information. The identification method is evaluated on a batch of common process industry processes. Finally, conclusions... (More)
This paper proposes a transfer function parameter identification method, applicable to SISO systems of any order. Parameter identification is posed as a (non-convex) squared output error minimization problem, numerically solved utilizing Newton-Raphson iteration with back tracking line search. Focus lies on computing the cost function gradient and Hessian with respect to the parameter vector and on finding a feasible start point. The method is demonstrated for FOTD model identification. A modified relay non-linearity is utilized in order to obtain most input signal energy at a predefined phase, without a priori system information. The identification method is evaluated on a batch of common process industry processes. Finally, conclusions and suggestions on future work are provided. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
relay, identification, parametric, transfer function, state space, FOTD
host publication
2010 American Control Conference
pages
2164 - 2169
conference name
American Control Conference, 2010
conference location
Baltimore, MD, United States
conference dates
2010-06-30 - 2010-07-02
external identifiers
  • wos:000287187902092
  • scopus:77957805007
ISSN
0743-1619
ISBN
978-1-4244-7426-4
DOI
10.1109/ACC.2010.5531322
project
Automatic Tuning
PICLU
language
English
LU publication?
yes
id
1fe85a7c-7574-447b-a465-6c47df8d77ff (old id 1750294)
date added to LUP
2016-04-04 09:38:16
date last changed
2025-10-14 10:43:26
@inproceedings{1fe85a7c-7574-447b-a465-6c47df8d77ff,
  abstract     = {{This paper proposes a transfer function parameter identification method, applicable to SISO systems of any order. Parameter identification is posed as a (non-convex) squared output error minimization problem, numerically solved utilizing Newton-Raphson iteration with back tracking line search. Focus lies on computing the cost function gradient and Hessian with respect to the parameter vector and on finding a feasible start point. The method is demonstrated for FOTD model identification. A modified relay non-linearity is utilized in order to obtain most input signal energy at a predefined phase, without a priori system information. The identification method is evaluated on a batch of common process industry processes. Finally, conclusions and suggestions on future work are provided.}},
  author       = {{Soltesz, Kristian and Hägglund, Tore and Åström, Karl Johan}},
  booktitle    = {{2010 American Control Conference}},
  isbn         = {{978-1-4244-7426-4}},
  issn         = {{0743-1619}},
  keywords     = {{relay; identification; parametric; transfer function; state space; FOTD}},
  language     = {{eng}},
  pages        = {{2164--2169}},
  title        = {{Transfer Function Parameter Identification by Modified Relay Feedback}},
  url          = {{https://lup.lub.lu.se/search/files/29861559/soltesz10a.pdf}},
  doi          = {{10.1109/ACC.2010.5531322}},
  year         = {{2010}},
}