Test site for nonstandard combined accelerated aging of medium voltage insulation systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00305910" target="_blank" >RIV/68407700:21230/16:00305910 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1109/ICHVE.2016.7800932" target="_blank" >http://dx.doi.org/10.1109/ICHVE.2016.7800932</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICHVE.2016.7800932" target="_blank" >10.1109/ICHVE.2016.7800932</a>

Result language

angličtina

Original language name

Test site for nonstandard combined accelerated aging of medium voltage insulation systems

Original language description

Presently, the wide usage of power electronics in electrical power systems brings a new type of voltage stresses of insulation systems. Power electronic systems, as high voltage dc systems, flexible ac transmission systems, voltage source convertors, static compensators etc., are usually using the pulse width modulation (PWM) that generates a wide spectrum of interferences. Harmonics and impulses with the main frequency content up to tens of kilohertz can arise as a consequence of mutual interaction between switching pulses emitted by power electronic component and distribution network passive parameters (resistance, inductance, and capacitance). Voltage distortions are superimposed to the power frequency voltage. Superimposed very fast and repetitive overvoltages can significantly decrease the life time of medium voltage devices. A novel test site for accelerated aging of medium voltage insulation system with new stress conditions was proposed and realized. The test site is able to simulate the voltage stress which more represents the real situation in power systems containing power electronics. Moreover, the proposed test site allows combining of the voltage stress with the thermal stress by high current flow in the cable conductor. The fundamental characteristics of test site components were determined and verified according to the preliminary proposal. The output voltage waveforms are discussed regarding to the real data gathered from measurements in distribution grid.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JE - Non-nuclear power engineering, energy consumption and utilization

OECD FORD branch

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Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

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

Article name in the collection

Proceedings of the 2016 IEEE International Conference on High Voltage Engineering and Application

ISBN

978-1-5090-0496-6

ISSN

—

e-ISSN

—

Number of pages

4

Pages from-to

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Publisher name

IEEE

Place of publication

New York

Event location

No.298 Tianren South Street, Wuhou, Chengdu

Event date

Sep 19, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000392251800358