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Applications Oriented Input Design in Time-Domain Through Cyclic Methods
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-1927-1690
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-9368-3079
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-0355-2663
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2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we propose a method for applications oriented input design for linear systems in open-loop under time-domain constraints on the amplitude of input and output signals. The method guarantees a desired control performance for the estimated model in minimum time, by imposing some lower bound on the information matrix. The problem is formulated as a time-domain optimization problem, which is non-convex. This is addressed through an alternating method, where we separate the problem into two steps and at each step we optimize the cost function with respect to one of two variables. We alternate between these two steps until convergence. A time recursive input design algorithm is performed, which enables us to use the algorithm with control. Therefore, a receding horizon framework is used to solve each optimization problem. Finally, we illustrate the method with a numerical example which shows the good ability of the proposed approach in generating an optimal input signal.

Place, publisher, year, edition, pages
2014. 1422-1427 p.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; 19
Keyword [en]
Alternating methods, Applications oriented input design, System identification
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-137204Scopus ID: 2-s2.0-84929745619ISBN: 9783902823625 (print)OAI: oai:DiVA.org:kth-137204DiVA: diva2:678281
Conference
19th World Congress IFAC´14 World Congress; Cape Town, South Africa, 24-29 August 2014
Note

QC 20151214

Available from: 2013-12-11 Created: 2013-12-11 Last updated: 2015-12-14Bibliographically approved

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Wahlberg, BoHjalmarsson, HåkanRojas, Cristian R.

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Ebadat, AfroozWahlberg, BoHjalmarsson, HåkanRojas, Cristian R.Hägg, PerLarsson, Christian R.
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Automatic ControlACCESS Linnaeus Centre
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