Partial Discharges Activity within an Internal Void at AC Voltage Disturbed by High Frequency Components

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00326676" target="_blank" >RIV/68407700:21230/18:00326676 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICHVE.2018.8642238" target="_blank" >http://dx.doi.org/10.1109/ICHVE.2018.8642238</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICHVE.2018.8642238" target="_blank" >10.1109/ICHVE.2018.8642238</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Partial Discharges Activity within an Internal Void at AC Voltage Disturbed by High Frequency Components

Popis výsledku v původním jazyce

Frequent use of power electronics in electrical power systems imposes significant impulse and harmonic voltage stresses on various insulation systems. These systems are stressed by very fast and repetitive voltage distortions, which are superimposed on the power frequency voltage. The lifetime of an insulation system is influenced by partial discharge (PD) activity that is a consequence of long-term stresses or manufacturing imperfections. It has been proven that the intensity of PDs significantly depends on the operating voltage waveform. The paper deals with the experimental measurement of PDs on the physical model of an internal void in a solid dielectric under above mentioned voltage stress conditions. Gathered patterns and parameters of PDs were analyzed and evaluated to determine whether there exists any influence of higher harmonics content on the lifetime of the insulation system. The presented results show that the presence of high frequency oscillations on power frequency voltage have the impact on the PD activity. These findings can be significant for insulation lifetime assessment in the power systems containing power electronic devices.

Název v anglickém jazyce

Partial Discharges Activity within an Internal Void at AC Voltage Disturbed by High Frequency Components

Popis výsledku anglicky

Frequent use of power electronics in electrical power systems imposes significant impulse and harmonic voltage stresses on various insulation systems. These systems are stressed by very fast and repetitive voltage distortions, which are superimposed on the power frequency voltage. The lifetime of an insulation system is influenced by partial discharge (PD) activity that is a consequence of long-term stresses or manufacturing imperfections. It has been proven that the intensity of PDs significantly depends on the operating voltage waveform. The paper deals with the experimental measurement of PDs on the physical model of an internal void in a solid dielectric under above mentioned voltage stress conditions. Gathered patterns and parameters of PDs were analyzed and evaluated to determine whether there exists any influence of higher harmonics content on the lifetime of the insulation system. The presented results show that the presence of high frequency oscillations on power frequency voltage have the impact on the PD activity. These findings can be significant for insulation lifetime assessment in the power systems containing power electronic devices.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 2018 IEEE International Conference on High Voltage Engineering and Application

ISBN

978-1-5386-5086-8

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE (Institute of Electrical and Electronics Engineers)

Místo vydání

—

Místo konání akce

Divani Caravel Hotel,Athens

Datum konání akce

10. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000462278900339