Mechanism of space charge formation in cross linked polyethylene (XLPE) under temperature gradient

Zepeng Lv; Junzheng Cao; Xia Wang; Haitian Wang; Kai Wu; L. A. Dissado

doi:10.1109/TDEI.2015.005278

Mechanism of space charge formation in cross linked polyethylene (XLPE) under temperature gradient

Zepeng Lv
, Junzheng Cao
, Xia Wang
, Haitian Wang
, Kai Wu
, L. A. Dissado

School of Electrical Engineering

Xi'an Jiaotong University
State Grid Corporation of China
University of Leicester

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

A bipolar charge transport model is used to simulate the formation of space charge in XLPE plaques placed under a temperature gradient. The model is used to assess the relative importance of charge migration and blocked extraction for three possible effects of the temperature gradient. The simulations were carried out for samples with different thicknesses and the results verified by comparison with experiment. In this way it has been shown that not only does the temperature gradient influence space charge accumulation through its introduction of a conductivity gradient, but also through differences in the injecting and extracting processes at electrodes of different temperature.

Original language	English
Article number	7367512
Pages (from-to)	3186-3196
Number of pages	11
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	22
Issue number	6
DOIs	https://doi.org/10.1109/TDEI.2015.005278
State	Published - Dec 2015

Keywords

Space charge
Temperature gradient
XLPE
blocked extraction
heterocharge

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10.1109/TDEI.2015.005278

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title = "Mechanism of space charge formation in cross linked polyethylene (XLPE) under temperature gradient",

abstract = "A bipolar charge transport model is used to simulate the formation of space charge in XLPE plaques placed under a temperature gradient. The model is used to assess the relative importance of charge migration and blocked extraction for three possible effects of the temperature gradient. The simulations were carried out for samples with different thicknesses and the results verified by comparison with experiment. In this way it has been shown that not only does the temperature gradient influence space charge accumulation through its introduction of a conductivity gradient, but also through differences in the injecting and extracting processes at electrodes of different temperature.",

keywords = "Space charge, Temperature gradient, XLPE, blocked extraction, heterocharge",

author = "Zepeng Lv and Junzheng Cao and Xia Wang and Haitian Wang and Kai Wu and Dissado, \{L. A.\}",

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AU - Lv, Zepeng

AU - Cao, Junzheng

AU - Wang, Xia

AU - Wang, Haitian

AU - Wu, Kai

AU - Dissado, L. A.

PY - 2015/12

Y1 - 2015/12

N2 - A bipolar charge transport model is used to simulate the formation of space charge in XLPE plaques placed under a temperature gradient. The model is used to assess the relative importance of charge migration and blocked extraction for three possible effects of the temperature gradient. The simulations were carried out for samples with different thicknesses and the results verified by comparison with experiment. In this way it has been shown that not only does the temperature gradient influence space charge accumulation through its introduction of a conductivity gradient, but also through differences in the injecting and extracting processes at electrodes of different temperature.

AB - A bipolar charge transport model is used to simulate the formation of space charge in XLPE plaques placed under a temperature gradient. The model is used to assess the relative importance of charge migration and blocked extraction for three possible effects of the temperature gradient. The simulations were carried out for samples with different thicknesses and the results verified by comparison with experiment. In this way it has been shown that not only does the temperature gradient influence space charge accumulation through its introduction of a conductivity gradient, but also through differences in the injecting and extracting processes at electrodes of different temperature.

KW - Space charge

KW - Temperature gradient

KW - XLPE

KW - blocked extraction

KW - heterocharge

UR - https://www.scopus.com/pages/publications/84961875737

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JO - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

IS - 6

M1 - 7367512

ER -

Mechanism of space charge formation in cross linked polyethylene (XLPE) under temperature gradient

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Keywords

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