On the identification of stable, integrating, and unstable processes with unknown orders and delays

Shyh-Hong Hwang, Lih Wei Wang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This article addresses the complete identification of stable, integrating, and unstable processes. Despite the stability of the process, a biased relay experiment can be performed to provide abundant process input-output data in stable operation. Based on a time-weighted integral filter, an effective method is developed to estimate the orders and time delay as well as the model parameters from the relay-induced data in a straightforward fashion. The method utilizes a small amount of experimental data and is robust with respect to measurement noise and model structure mismatch. Furthermore, it can easily be applied as a model reduction technique by estimating an apparent delay with user-specified orders.

Original languageEnglish
Pages (from-to)794-805
Number of pages12
JournalJournal of Chemical Engineering of Japan
Volume35
Issue number8
DOIs
Publication statusPublished - 2002 Jan 1

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Model structures
Time delay
Experiments

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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On the identification of stable, integrating, and unstable processes with unknown orders and delays. / Hwang, Shyh-Hong; Wang, Lih Wei.

In: Journal of Chemical Engineering of Japan, Vol. 35, No. 8, 01.01.2002, p. 794-805.

Research output: Contribution to journalArticle

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