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Relay auto-tuning of PID controllers using iterative feedback tuning
KTH, Superseded Departments, Signals, Sensors and Systems. (Reglerteknik)ORCID iD: 0000-0002-9368-3079
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2003 (English)In: Automatica, ISSN 0005-1098, E-ISSN 1873-2836, Vol. 39, no 1, 149-157 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, ideas from iterative feedback tuning (IFT) are incorporated into relay auto-tuning of the proportional-plus-integal-plus-derivative (PID) controller. The PID controller is auto-tuned to give specified phase margin and bandwidth. Good tuning performance according to the specified bandwidth and phase margin can be obtained and the limitation of the standard relay auto-tuning technique using a version of Ziegler-Nichols formula can be eliminated. Furthermore, by using common modelling assumptions for the relay system, some of the required derivatives in the IFT algorithm can be derived analytically. The algorithm was tested in the laboratory on a coupled tank and good tuning result was demonstrated.

Place, publisher, year, edition, pages
2003. Vol. 39, no 1, 149-157 p.
Keyword [en]
PID controller, iterative feedback tuning, relay auto-tuning, phase margins, gain, specifications, performance, formulas
National Category
Control Engineering
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-22133DOI: 10.1016/S0005-1098(02)00201-7ISI: 000179966500017OAI: oai:DiVA.org:kth-22133DiVA: diva2:340831
Funder
Swedish Research Council, 621-1999-179
Note
QC 20100525 NR 20140804Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Hjalmarsson, Håkan

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