Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System

This paper addresses the critical challenge of detecting, separating, and classifying partial discharges in substations. It proposes two solutions: the first involves developing a signal conditioning system to reduce the sampling requirements for PD detection and increase the signal-to-noise ratio....

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Main Authors: Itaiara Felix Carvalho, Edson Guedes da Costa, Luiz Augusto Medeiros Martins Nobrega, Allan David da Costa Silva
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/24/7/2226
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author Itaiara Felix Carvalho
Edson Guedes da Costa
Luiz Augusto Medeiros Martins Nobrega
Allan David da Costa Silva
author_facet Itaiara Felix Carvalho
Edson Guedes da Costa
Luiz Augusto Medeiros Martins Nobrega
Allan David da Costa Silva
author_sort Itaiara Felix Carvalho
collection DOAJ
description This paper addresses the critical challenge of detecting, separating, and classifying partial discharges in substations. It proposes two solutions: the first involves developing a signal conditioning system to reduce the sampling requirements for PD detection and increase the signal-to-noise ratio. The second approach uses machine learning techniques to separate and classify PD based on features extracted from the conditioned signal. Three clustering algorithms (K-means, Gaussian Mixture Model (GMM), and Mean-shift) and the Support Vector Machine (SVM) method were used for signal separation and classification. The proposed system effectively reduced high-frequency components up to 50 MHz, improved the signal-to-noise ratio, and effectively separated different sources of partial discharges without losing relevant information. An accuracy of up to 93% was achieved in classifying the partial discharge sources. The successful implementation of the signal conditioning system and the machine learning-based signal separation approach opens avenues for more economical, scalable, and reliable PD monitoring systems.
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spelling doaj.art-3bbb2a35ae3e4776b2c1d4b2979e65882024-04-12T13:26:32ZengMDPI AGSensors1424-82202024-03-01247222610.3390/s24072226Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning SystemItaiara Felix Carvalho0Edson Guedes da Costa1Luiz Augusto Medeiros Martins Nobrega2Allan David da Costa Silva3Department of Electrical Engineering, Federal University of Campina Grande, Aprigio Veloso 882, Universitário, Campina Grande 58429-900, BrazilDepartment of Electrical Engineering, Federal University of Campina Grande, Aprigio Veloso 882, Universitário, Campina Grande 58429-900, BrazilDepartment of Electrical Engineering, Federal University of Campina Grande, Aprigio Veloso 882, Universitário, Campina Grande 58429-900, BrazilDepartment of Electrical Engineering, Federal University of Campina Grande, Aprigio Veloso 882, Universitário, Campina Grande 58429-900, BrazilThis paper addresses the critical challenge of detecting, separating, and classifying partial discharges in substations. It proposes two solutions: the first involves developing a signal conditioning system to reduce the sampling requirements for PD detection and increase the signal-to-noise ratio. The second approach uses machine learning techniques to separate and classify PD based on features extracted from the conditioned signal. Three clustering algorithms (K-means, Gaussian Mixture Model (GMM), and Mean-shift) and the Support Vector Machine (SVM) method were used for signal separation and classification. The proposed system effectively reduced high-frequency components up to 50 MHz, improved the signal-to-noise ratio, and effectively separated different sources of partial discharges without losing relevant information. An accuracy of up to 93% was achieved in classifying the partial discharge sources. The successful implementation of the signal conditioning system and the machine learning-based signal separation approach opens avenues for more economical, scalable, and reliable PD monitoring systems.https://www.mdpi.com/1424-8220/24/7/2226signal conditioning systempartial dischargeclassification of partial discharges
spellingShingle Itaiara Felix Carvalho
Edson Guedes da Costa
Luiz Augusto Medeiros Martins Nobrega
Allan David da Costa Silva
Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
Sensors
signal conditioning system
partial discharge
classification of partial discharges
title Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
title_full Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
title_fullStr Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
title_full_unstemmed Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
title_short Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System
title_sort identification of partial discharge sources by feature extraction from a signal conditioning system
topic signal conditioning system
partial discharge
classification of partial discharges
url https://www.mdpi.com/1424-8220/24/7/2226
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