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Classification of sags according to their origin based on the waveform similarity

A statistical method for classification of sags their origin downstream or upstream from the recording point is proposed in this work. The goal is to obtain a statistical model using the sag waveforms useful to characterise one type of sags and to discriminate them from the other type. This model is built on the basis of multi-way principal component analysis an later used to project the available registers in a new space with lower dimension. Thus, a case base of diagnosed sags is built in the projection space. Finally classification is done by comparing new sags against the existing in the case base. Similarity is defined in the projection space using a combination of distances to recover the nearest neighbours to the new sag. Finally the method assigns the origin of the new sag according to the origin of their neighbours

© IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, 2008, p. 1-6

IEEE

Author: Meléndez i Frigola, Joaquim
Berjaga Moliné, Xavier
Herraiz Jaramillo, Sergio
Barrera Núñez, Víctor Augusto
Sánchez, Jorge
Castro, M.
Date: 2008
Abstract: A statistical method for classification of sags their origin downstream or upstream from the recording point is proposed in this work. The goal is to obtain a statistical model using the sag waveforms useful to characterise one type of sags and to discriminate them from the other type. This model is built on the basis of multi-way principal component analysis an later used to project the available registers in a new space with lower dimension. Thus, a case base of diagnosed sags is built in the projection space. Finally classification is done by comparing new sags against the existing in the case base. Similarity is defined in the projection space using a combination of distances to recover the nearest neighbours to the new sag. Finally the method assigns the origin of the new sag according to the origin of their neighbours
Format: application/pdf
Citation: Meléndez, J., Berjaga, X., Herraiz, S., Barrera, V., Sanchez, J., i Castro, M. (2008). Classification of sags according to their origin based on the waveform similarity. IEEE/PES Transmission and Distribution Conference and Exposition: Latin America : 2008, 1-6. Recuperat 18 juny 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4641819
ISBN: 978-1-4244-2217-3
Document access: http://hdl.handle.net/10256/2666
Language: eng
Publisher: IEEE
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/TDC-LA.2008.4641819
Articles publicats (D-EEEiA)
Is part of: © IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, 2008, p. 1-6
Rights: Tots els drets reservats
Subject: Energia elèctrica -- Distribució -- Alta tensió
Energia elèctrica -- Transmissió -- Control de qualitat
Errors de diagnòstic
Diagnostic errors
Electric power distribution -- High tension
Electric power transmission -- Quality control
Title: Classification of sags according to their origin based on the waveform similarity
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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