Partial discharge behavior and insulation failures detection in electrical devices subjected to impulse voltage excitation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F25%3A43976244" target="_blank" >RIV/49777513:23220/25:43976244 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S014206152500626X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S014206152500626X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijepes.2025.111078" target="_blank" >10.1016/j.ijepes.2025.111078</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Partial discharge behavior and insulation failures detection in electrical devices subjected to impulse voltage excitation

Popis výsledku v původním jazyce

Partial discharges can occur within an insulating system due to flaws in the material and can cause continuous deterioration until a full breakdown occurs. Modern insulating systems are subjected to various forms of pulse voltage excitation, mainly due to the switching of modern power electronics. The recent introduction of wide-bandgap semiconductors increases this stress by enabling higher operating voltages and steeper switching transients than silicon-based semiconductors. Within this paper, partial discharge measurements are performed to investigate the discharge behavior of different partial discharge sources at impulse voltage excitation, aiming to find characteristic features. The presented method relies on measuring the conducted electrical signal of a partial discharge and can, therefore, access all quantities known from partial discharge measurements at sinusoidal voltage. This article introduces the high voltage measurement setup and the signal processing required. Experiments on four different partial discharge sources are performed, and the measured data are evaluated for the information they possess regarding the active discharge mechanisms. With the results obtained, the fault analysis can be extended to recognizing the fault type active at pulse voltage, utilizing partial discharge measurements.

Název v anglickém jazyce

Partial discharge behavior and insulation failures detection in electrical devices subjected to impulse voltage excitation

Popis výsledku anglicky

Partial discharges can occur within an insulating system due to flaws in the material and can cause continuous deterioration until a full breakdown occurs. Modern insulating systems are subjected to various forms of pulse voltage excitation, mainly due to the switching of modern power electronics. The recent introduction of wide-bandgap semiconductors increases this stress by enabling higher operating voltages and steeper switching transients than silicon-based semiconductors. Within this paper, partial discharge measurements are performed to investigate the discharge behavior of different partial discharge sources at impulse voltage excitation, aiming to find characteristic features. The presented method relies on measuring the conducted electrical signal of a partial discharge and can, therefore, access all quantities known from partial discharge measurements at sinusoidal voltage. This article introduces the high voltage measurement setup and the signal processing required. Experiments on four different partial discharge sources are performed, and the measured data are evaluated for the information they possess regarding the active discharge mechanisms. With the results obtained, the fault analysis can be extended to recognizing the fault type active at pulse voltage, utilizing partial discharge measurements.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EH23_020%2F0008490" target="_blank" >EH23_020/0008490: Český inkubátor technologií pro energetické sítě</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

INTERNATIONAL JOURNAL OF ELECTRICAL POWER &amp; ENERGY SYSTEMS

ISSN

0142-0615

e-ISSN

1879-3517

Svazek periodika

172

Číslo periodika v rámci svazku

NOV 2025

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

nestránkováno

Kód UT WoS článku

001568758500001

EID výsledku v databázi Scopus

2-s2.0-105015299463