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

A4 Konferenspublikationer

Interna författare/redaktörer

Publikationens författare: Ramkrishna Ghosh, Kurt E. Häggblom, Jari M. Böling
Redaktörer: Boje Edward, Xia Xiaohua
Förlagsort: Kidlington, Oxford, UK; Zürich, Switzerland
Publiceringsår: 2014
Tidskrift: IFAC papers online
Förläggare: International Federation of Automatic Control
Moderpublikationens namn: Proceedings of the 19th IFAC World Congress, 2014
Seriens namn: World Congress
Nummer i serien: 19
Volym: 1
Artikelns första sida, sidnummer: 9382
Artikelns sista sida, sidnummer: 9387
eISBN: 978-3-902823-62-5
ISSN: 1474-6670


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.


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


Senast uppdaterad 2020-11-07 vid 05:26