Mechanism of Space Charge Formation in Cross Linked Polyethylene (XLPE) under Temperature Gradient

被引：52
|
作者：
Lv, Zepeng [1 ]
Cao, Junzheng [2 ]
Wang, Xia [1 ]
Wang, Haitian [2 ]
Wu, Kai [1 ]
Dissado, L. A. [3 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
[2] State Grid Smart Grid Res Inst, Beijing, Peoples R China
[3] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2015年 / 22卷 / 06期
基金：
美国国家科学基金会;
关键词：
Space charge; heterocharge; blocked extraction; XLPE; temperature gradient; HVDC CABLE DESIGN; VOLTAGE REVERSAL; ELECTRIC-FIELD; POWER CABLE; LDPE FILMS; ACCUMULATION; INJECTION; INSULATION; TRANSPORT; BREAKDOWN;
D O I：
10.1109/TDEI.2015.005278
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：3186 / 3196
页数：11
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