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On-line estimation of all electrical parameters in symmetrical and faulty induction machines: stator fault case
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
2006 (English)Report (Other academic)
Abstract [en]

Identification of all the electrical parameters of Induction Machines (IMs) is a prerequisite for successful model-based control and/or fault detection. Various approaches have been proposed previously: off-line experiments under alternating stationary conditions, least squares batch and on-line estimation, to name only a few. Both continuous and discrete time have been considered, all of them utilizing models for symmetrical IMs. Existing methods for identification of the electrical parameters of the IM are strictly speaking valid only at stationary conditions, which limitation results in either poor dynamics excitation or gross approximation errors, depending on the working conditions of the motor. Unrealistic assumptions about the rotor's angular acceleration are also often employed. The topic of identification of all electrical parameters of faulty IMs has not been addressed so far. In this paper, a method for on-line observer-based estimation of all electrical parameters of symmetrical IMs as well as IMs with faulty stator is presented aiming primarily at fault tolerant control and fault detection. The approach does not rely on any assumptions regarding the rotor's angular speed and/or acceleration.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2006. , 50 p.
Series
Technical report / Luleå University of Technology, ISSN 1402-1536 ; 2006:10
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-23440Local ID: 7003b930-a4cf-11dc-8fee-000ea68e967bOAI: oai:DiVA.org:ltu-23440DiVA: diva2:996489
Note

Godkänd; 2006; 20071207 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
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  • vancouver
  • Other style
More styles
Language
  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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