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Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears

The ultra-high-frequency (UHF) method is used to analyze the insulation condition of electric equipment by detecting the UHF electromagnetic (EM) waves excited by partial discharge (PD). As part of the UHF detection system, the UHF sensor determines the detection system performance in signal extract...

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Autores principales: Yao, Chenguo, Chen, Pan, Huang, Congjian, Chen, Yu, Qiao, Panpan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892814/
https://www.ncbi.nlm.nih.gov/pubmed/24351641
http://dx.doi.org/10.3390/s131217362
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author Yao, Chenguo
Chen, Pan
Huang, Congjian
Chen, Yu
Qiao, Panpan
author_facet Yao, Chenguo
Chen, Pan
Huang, Congjian
Chen, Yu
Qiao, Panpan
author_sort Yao, Chenguo
collection PubMed
description The ultra-high-frequency (UHF) method is used to analyze the insulation condition of electric equipment by detecting the UHF electromagnetic (EM) waves excited by partial discharge (PD). As part of the UHF detection system, the UHF sensor determines the detection system performance in signal extraction and recognition. In this paper, a UHF antenna sensor with the fractal structure for PD detection in switchgears was designed by means of modeling, simulation and optimization. This sensor, with a flat-plate structure, had two resonance frequencies of 583 MHz and 732 MHz. In the laboratory, four kinds of insulation defect models were positioned in the testing switchgear for typical PD tests. The results show that the sensor could reproduce the electromagnetic waves well. Furthermore, to optimize the installation position of the inner sensor for achieving best detection performance, the precise simulation model of switchgear was developed to study the propagation characteristics of UHF signals in switchgear by finite-difference time-domain (FDTD) method. According to the results of simulation and verification test, the sensor should be positioned at the right side of bottom plate in the front cabinet. This research established the foundation for the further study on the application of UHF technique in switchgear PD online detection.
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spelling pubmed-38928142014-01-16 Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears Yao, Chenguo Chen, Pan Huang, Congjian Chen, Yu Qiao, Panpan Sensors (Basel) Article The ultra-high-frequency (UHF) method is used to analyze the insulation condition of electric equipment by detecting the UHF electromagnetic (EM) waves excited by partial discharge (PD). As part of the UHF detection system, the UHF sensor determines the detection system performance in signal extraction and recognition. In this paper, a UHF antenna sensor with the fractal structure for PD detection in switchgears was designed by means of modeling, simulation and optimization. This sensor, with a flat-plate structure, had two resonance frequencies of 583 MHz and 732 MHz. In the laboratory, four kinds of insulation defect models were positioned in the testing switchgear for typical PD tests. The results show that the sensor could reproduce the electromagnetic waves well. Furthermore, to optimize the installation position of the inner sensor for achieving best detection performance, the precise simulation model of switchgear was developed to study the propagation characteristics of UHF signals in switchgear by finite-difference time-domain (FDTD) method. According to the results of simulation and verification test, the sensor should be positioned at the right side of bottom plate in the front cabinet. This research established the foundation for the further study on the application of UHF technique in switchgear PD online detection. Molecular Diversity Preservation International (MDPI) 2013-12-16 /pmc/articles/PMC3892814/ /pubmed/24351641 http://dx.doi.org/10.3390/s131217362 Text en © 2013 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/3.0/).
spellingShingle Article
Yao, Chenguo
Chen, Pan
Huang, Congjian
Chen, Yu
Qiao, Panpan
Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title_full Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title_fullStr Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title_full_unstemmed Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title_short Study on the Application of an Ultra-High-Frequency Fractal Antenna to Partial Discharge Detection in Switchgears
title_sort study on the application of an ultra-high-frequency fractal antenna to partial discharge detection in switchgears
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892814/
https://www.ncbi.nlm.nih.gov/pubmed/24351641
http://dx.doi.org/10.3390/s131217362
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