Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2

Ramkrishna Ghosh; Kurt Erik Häggblom; Jari Böling

doi:10.3182/20140824-6-ZA-1003.02447

Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2

Ramkrishna Ghosh, Kurt Erik Häggblom, Jari Böling

Research output: Chapter in Book/Conference proceeding › Conference contribution › Scientific › peer-review

5 Citations (Scopus)

17 Downloads (Pure)

Abstract

The objective of this work is to generalize input excitation designs suggested for system identification of ill-conditioned 2x2 systems to cases with more than two inputs and outputs. The methods are evaluated using a four inputs-four outputs distillation column/stripper system as a case study. The performance of the various procedures is evaluated through the model fit and different plant-friendly indices. The obtained models, and thus the quality of the associated input excitations, are also evaluated through cross validations.

Original language	Undefined/Unknown
Title of host publication	Proceedings of the 19th IFAC World Congress, 2014
Editors	Boje Edward, Xia Xiaohua
Publisher	International Federation of Automatic Control
Pages	9382–9387
ISBN (Electronic)	978-3-902823-62-5
DOIs	https://doi.org/10.3182/20140824-6-ZA-1003.02447
Publication status	Published - 2014
MoE publication type	A4 Article in a conference publication
Event	conference; 2014-08-24; 2014-08-29 - Cape Town International Convention Centre, Cape Town, South Africa Duration: 24 Aug 2014 → 29 Aug 2014

Conference

Conference	conference; 2014-08-24; 2014-08-29
Period	24/08/14 → 29/08/14

Keywords

Gain directionality
Input signals
Multivariable systems
System identification
experiment design
ill-conditioned systems

Access to Document

10.3182/20140824-6-ZA-1003.02447

Ghosh.pdf

http://www.ifac-papersonline.net/Detailed/68229.html

Cite this

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title = "Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2",

abstract = "The objective of this work is to generalize input excitation designs suggested for system identification of ill-conditioned 2x2 systems to cases with more than two inputs and outputs. The methods are evaluated using a four inputs-four outputs distillation column/stripper system as a case study. The performance of the various procedures is evaluated through the model fit and different plant-friendly indices. The obtained models, and thus the quality of the associated input excitations, are also evaluated through cross validations.",

keywords = "Gain directionality, Input signals, Multivariable systems, System identification, experiment design, ill-conditioned systems, Gain directionality, Input signals, Multivariable systems, System identification, experiment design, ill-conditioned systems, Gain directionality, Input signals, Multivariable systems, System identification, experiment design, ill-conditioned systems",

author = "Ramkrishna Ghosh and H{\"a}ggblom, {Kurt Erik} and Jari B{\"o}ling",

year = "2014",

doi = "10.3182/20140824-6-ZA-1003.02447",

language = "Odefinierat/ok{\"a}nt",

pages = "9382–9387",

editor = "Boje Edward and Xia Xiaohua",

booktitle = "Proceedings of the 19th IFAC World Congress, 2014",

publisher = "International Federation of Automatic Control",

note = "conference; 2014-08-24; 2014-08-29 ; Conference date: 24-08-2014 Through 29-08-2014",

}

Ghosh, R, Häggblom, KE & Böling, J 2014, Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2. in B Edward & X Xiaohua (eds), Proceedings of the 19th IFAC World Congress, 2014. International Federation of Automatic Control, pp. 9382–9387, conference; 2014-08-24; 2014-08-29, 24/08/14. https://doi.org/10.3182/20140824-6-ZA-1003.02447

Control-relevant input excitation for system identification of ill-conditioned n×n systems with n>2. / Ghosh, Ramkrishna; Häggblom, Kurt Erik ; Böling, Jari.
Proceedings of the 19th IFAC World Congress, 2014. ed. / Boje Edward; Xia Xiaohua. International Federation of Automatic Control, 2014. p. 9382–9387.

Research output: Chapter in Book/Conference proceeding › Conference contribution › Scientific › peer-review

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AB - The objective of this work is to generalize input excitation designs suggested for system identification of ill-conditioned 2x2 systems to cases with more than two inputs and outputs. The methods are evaluated using a four inputs-four outputs distillation column/stripper system as a case study. The performance of the various procedures is evaluated through the model fit and different plant-friendly indices. The obtained models, and thus the quality of the associated input excitations, are also evaluated through cross validations.

KW - Gain directionality

KW - Input signals

KW - Multivariable systems

KW - System identification

KW - experiment design

KW - ill-conditioned systems

KW - Gain directionality

KW - Input signals

KW - Multivariable systems

KW - System identification

KW - experiment design

KW - ill-conditioned systems

KW - Gain directionality

KW - Input signals

KW - Multivariable systems

KW - System identification

KW - experiment design

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BT - Proceedings of the 19th IFAC World Congress, 2014

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