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Identification of performance limitations in control
KTH, Skolan för elektro- och systemteknik (EES), Reglerteknik.ORCID-id: 0000-0002-9368-3079
KTH, Skolan för teknik och hälsa (STH), Medicinsk teknik, Medicinska sensorer, signaler och system.
2001 (Engelska)Ingår i: 2001 European Control Conference, ECC 2001, IEEE conference proceedings, 2001, s. 1446-1451Konferensbidrag, Publicerat paper (Refereegranskat)
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Text
Abstract [en]

Non-minimum phase zeros and poles of a process put upper and lower constraints on the bandwidth of a closed loop system. It is thus of great interest to be able to identify these quantities. In this contribution it is shown that non-minimum phase zeros and unstable poles can be identified using high order models without the standard o(n) (n is the model order) variance penalty for over modeling. An asymptotic, in the model order and the number of data, expression for the variance of non-minimum phase zeros is derived. This result shows that the problem of determining the performance limits of a system from experimental data is considerably easier than identifying the complete system. As a direct application of this an optimal experiment design problem for identification of performance limits is posed and solved.

Ort, förlag, år, upplaga, sidor
IEEE conference proceedings, 2001. s. 1446-1451
Nyckelord [en]
experiment design, performance limitations, poles and zeros, System identification, Closed loop systems, Identification (control systems), Complete system, High order model, Non-minimum phase zero, Number of datum, Optimal experiment design, Performance limits, Poles
Nationell ämneskategori
Reglerteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-181628Scopus ID: 2-s2.0-84947466325ISBN: 9783952417362 (tryckt)OAI: oai:DiVA.org:kth-181628DiVA, id: diva2:909017
Konferens
6th European Control Conference, ECC 2001, 4 September 2001 through 7 September 2001
Anmärkning

QC 20160304

Tillgänglig från: 2016-03-04 Skapad: 2016-02-02 Senast uppdaterad: 2016-03-04Bibliografiskt granskad

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Hjalmarsson, Håkan

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Hjalmarsson, HåkanLindqvist, Kristian
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ReglerteknikMedicinska sensorer, signaler och system
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Totalt: 126 träffar
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