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Stator winding short circuit fault detection based on uncertainty ellipsoid intersection for three phase induction motors
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0003-0126-1897
2013 (English)In: 10th International Conference on Informatics in Control, Automation and Robotics: Reykjavik, Iceland, 29-31, July, 2013, 2013, 206-212 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this article a fault detection scheme for different percentage of stator winding short circuit is presented for three phase induction motors. In the examined case, the induction motor in the faulty and healthy case has been transformed in the two phase (q−d) model. The model has been identified by the utilization of a Least Squares Set Membership Identification (SMI) algorithm, where additional to the identified parameters, confidence intervals can be also calculated, based on a priori knowledge for the corrupting measurement noise. The identified confidence intervals in an μ–dimensional space can be represented as hyper–ellipsoids having as a center the identified parameters’ vector. The novelty of this article stems from the proposal of a fast and geometrical based scheme, which relies on the calculation of the distance among centers of hyper–ellipsoids and the corresponding intersection in each iteration of the identification procedure. Detailed analysis of the proposed fault detection strategy, as also extended simulation results are being presented that prove the efficiency of the suggested scheme.

Place, publisher, year, edition, pages
2013. 206-212 p.
Keyword [en]
Information technology - Automatic control
Keyword [sv]
Informationsteknik - Reglerteknik
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-39980Local ID: ef037b0b-2ce0-4521-81ef-1f2af7922a22OAI: oai:DiVA.org:ltu-39980DiVA: diva2:1013500
Conference
International Conference on Informatics in Control, Automation and Robotics : 29/07/2013 - 31/07/2013
Note
Godkänd; 2013; 20130404 (geonik)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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