高压电器2018，Vol.54Issue(5)：144-149,155,7.DOI:10.13296/j.1001-1609.hva.2018.05.023
不同温度下环氧树脂空间电荷特性仿真研究
Simulation of Space Charge Characteristics of Epoxy Resin at Different Temperatures
摘要
Abstract
The study of space charge transport characteristics of epoxy resin under DC voltage is significant to the development of gas insulated transmission line (GIL). In this paper, bipolar carrier transport model was established to numerical calculus the space charge distribution in epoxy resin at 0, 30, 60, 105 ℃. The influence of temperature on the internal space charge transport characteristics of epoxy resin, as well as the distribution of electric fields trength, was obtained. Results show that the electron charge is dominant in the epoxy resin material, and the electric field near the anode is increased by the migration at the temperature of 0 ℃ and 30 ℃. With the increase of the temperature, the time for charge distribution to reach a new steady-state decreases. However, the charge distribution of epoxy resin at 60 ℃ and 105 ℃ shows a completely different trend. The enhancement of charge migration and trap's capture makes the charge accumulate near the electrode much more easier, which reduces the electric field strength at material interface near anode and cathode. The results can provide theoretical basis for the material modification of insulators in GIL and precision regulation of space charge characteristics.关键词
环氧树脂/双极性载流子输运模型/数值计算/温度特性/空间电荷Key words
epoxy/bipolar carrier transport model/numerical calculation/temperature characteristics/space charge引用本文复制引用
秦司晨,屠幼萍,金花,陈冰莹,谭天,王璁..不同温度下环氧树脂空间电荷特性仿真研究[J].高压电器,2018,54(5):144-149,155,7.基金项目
国家重点基础研究发展计划项目(973计划)(2006CB200303,2006CB2003056) （973计划）
国家自然科学基金项目(51577062).Project Supported by the National Basic Research Program(973 Program)(2006CB200303,2006CB2003056),National Natural Science Foundation of China(51577062). （51577062）
