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A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements

Both in industrial as in controlled environments, such as high-voltage laboratories, pulses from multiple sources, including partial discharges (PD) and electrical noise can be superimposed. These circumstances can modify and alter the results of PD measurements and, what is more, they can lead to m...

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Autores principales: Ardila-Rey, Jorge Alfredo, Albarracín, Ricardo, Álvarez, Fernando, Barrueto, Aldo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634465/
https://www.ncbi.nlm.nih.gov/pubmed/26473872
http://dx.doi.org/10.3390/s151025898
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author Ardila-Rey, Jorge Alfredo
Albarracín, Ricardo
Álvarez, Fernando
Barrueto, Aldo
author_facet Ardila-Rey, Jorge Alfredo
Albarracín, Ricardo
Álvarez, Fernando
Barrueto, Aldo
author_sort Ardila-Rey, Jorge Alfredo
collection PubMed
description Both in industrial as in controlled environments, such as high-voltage laboratories, pulses from multiple sources, including partial discharges (PD) and electrical noise can be superimposed. These circumstances can modify and alter the results of PD measurements and, what is more, they can lead to misinterpretation. The spectral power clustering technique (SPCT) allows separating PD sources and electrical noise through the two-dimensional representation (power ratio map or PR map) of the relative spectral power in two intervals, high and low frequency, calculated for each pulse captured with broadband sensors. This method allows to clearly distinguishing each of the effects of noise and PD, making it easy discrimination of all sources. In this paper, the separation ability of the SPCT clustering technique when using a Rogowski coil for PD measurements is evaluated. Different parameters were studied in order to establish which of them could help for improving the manual selection of the separation intervals, thus enabling a better separation of clusters. The signal processing can be performed during the measurements or in a further analysis.
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spelling pubmed-46344652015-11-23 A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements Ardila-Rey, Jorge Alfredo Albarracín, Ricardo Álvarez, Fernando Barrueto, Aldo Sensors (Basel) Article Both in industrial as in controlled environments, such as high-voltage laboratories, pulses from multiple sources, including partial discharges (PD) and electrical noise can be superimposed. These circumstances can modify and alter the results of PD measurements and, what is more, they can lead to misinterpretation. The spectral power clustering technique (SPCT) allows separating PD sources and electrical noise through the two-dimensional representation (power ratio map or PR map) of the relative spectral power in two intervals, high and low frequency, calculated for each pulse captured with broadband sensors. This method allows to clearly distinguishing each of the effects of noise and PD, making it easy discrimination of all sources. In this paper, the separation ability of the SPCT clustering technique when using a Rogowski coil for PD measurements is evaluated. Different parameters were studied in order to establish which of them could help for improving the manual selection of the separation intervals, thus enabling a better separation of clusters. The signal processing can be performed during the measurements or in a further analysis. MDPI 2015-10-13 /pmc/articles/PMC4634465/ /pubmed/26473872 http://dx.doi.org/10.3390/s151025898 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ardila-Rey, Jorge Alfredo
Albarracín, Ricardo
Álvarez, Fernando
Barrueto, Aldo
A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title_full A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title_fullStr A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title_full_unstemmed A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title_short A Validation of the Spectral Power Clustering Technique (SPCT) by Using a Rogowski Coil in Partial Discharge Measurements
title_sort validation of the spectral power clustering technique (spct) by using a rogowski coil in partial discharge measurements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634465/
https://www.ncbi.nlm.nih.gov/pubmed/26473872
http://dx.doi.org/10.3390/s151025898
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