Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

Abstract A method of reconstructing the original partial discharge (PD) signal to improve the accuracy of PD localization in cross‐linked polyethylene (XLPE) cables is presented here. XLPE cables, extremely sensitive to PDs, are the most popular underground cables in urban grids. The conventional PD...

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Autores principales:	Saike Yang, Kun Zhao, Li Wang, Hongjie Li, Lin Zhang, Qishen Lv
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2022
Materias:	Distribution or transmission of electric power TK3001-3521 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/13362799d2ab415184325412abdbc961
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spelling	oai:doaj.org-article:13362799d2ab415184325412abdbc9612021-12-02T14:01:24ZDevelopment of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction1751-86951751-868710.1049/gtd2.12289https://doaj.org/article/13362799d2ab415184325412abdbc9612022-01-01T00:00:00Zhttps://doi.org/10.1049/gtd2.12289https://doaj.org/toc/1751-8687https://doaj.org/toc/1751-8695Abstract A method of reconstructing the original partial discharge (PD) signal to improve the accuracy of PD localization in cross‐linked polyethylene (XLPE) cables is presented here. XLPE cables, extremely sensitive to PDs, are the most popular underground cables in urban grids. The conventional PD localization methods, based on evaluation of the arrival times of PD pulses in the time domain, are negatively affected by the dispersion and attenuation of PD signals propagating in the power cable. A method for the accurate localization of PDs realized through inverse frequency domain modelling (IFDM) is presented here. The method, eliminating the systematic localization error caused by the dispersion and attenuation, significantly improves the localization accuracy. The locations of the PD are identified by comparing peak values of the initial PD signals reconstructed from different extracted pulses. A method for evaluating the propagation constant of the cable is also presented. The efficiency of the accurate localization method was verified by laboratory experiments. Besides, the inherent limitations of the conventional PD localization method for longer cable tests are discussed. The inevitable location error in the conventional methods does not exist in the new method.Saike YangKun ZhaoLi WangHongjie LiLin ZhangQishen LvWileyarticleDistribution or transmission of electric powerTK3001-3521Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENIET Generation, Transmission & Distribution, Vol 16, Iss 1, Pp 193-203 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Distribution or transmission of electric power TK3001-3521 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	Distribution or transmission of electric power TK3001-3521 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Saike Yang Kun Zhao Li Wang Hongjie Li Lin Zhang Qishen Lv Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
description	Abstract A method of reconstructing the original partial discharge (PD) signal to improve the accuracy of PD localization in cross‐linked polyethylene (XLPE) cables is presented here. XLPE cables, extremely sensitive to PDs, are the most popular underground cables in urban grids. The conventional PD localization methods, based on evaluation of the arrival times of PD pulses in the time domain, are negatively affected by the dispersion and attenuation of PD signals propagating in the power cable. A method for the accurate localization of PDs realized through inverse frequency domain modelling (IFDM) is presented here. The method, eliminating the systematic localization error caused by the dispersion and attenuation, significantly improves the localization accuracy. The locations of the PD are identified by comparing peak values of the initial PD signals reconstructed from different extracted pulses. A method for evaluating the propagation constant of the cable is also presented. The efficiency of the accurate localization method was verified by laboratory experiments. Besides, the inherent limitations of the conventional PD localization method for longer cable tests are discussed. The inevitable location error in the conventional methods does not exist in the new method.
format	article
author	Saike Yang Kun Zhao Li Wang Hongjie Li Lin Zhang Qishen Lv
author_facet	Saike Yang Kun Zhao Li Wang Hongjie Li Lin Zhang Qishen Lv
author_sort	Saike Yang
title	Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
title_short	Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
title_full	Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
title_fullStr	Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
title_full_unstemmed	Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction
title_sort	development of the accurate localization of partial discharges in medium‐voltage xlpe cables based on pulse reconstruction
publisher	Wiley
publishDate	2022
url	https://doaj.org/article/13362799d2ab415184325412abdbc961
work_keys_str_mv	AT saikeyang developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction AT kunzhao developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction AT liwang developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction AT hongjieli developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction AT linzhang developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction AT qishenlv developmentoftheaccuratelocalizationofpartialdischargesinmediumvoltagexlpecablesbasedonpulsereconstruction
_version_	1718392122922500096

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

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