[1]李震宇.冲击电晕对输电线路过电压的畸变效应影响研究[J].电瓷避雷器,2019,(06):111-116.[doi:10.16188/j.isa.1003-8337.2019.06.019]
 LI Zhenyu.Distortion Effect of Impulse Corona on Overvoltage of Transmission Lines[J].,2019,(06):111-116.[doi:10.16188/j.isa.1003-8337.2019.06.019]
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冲击电晕对输电线路过电压的畸变效应影响研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年06期
页码:
111-116
栏目:
避雷器
出版日期:
2019-12-10

文章信息/Info

Title:
Distortion Effect of Impulse Corona on Overvoltage of Transmission Lines
作者:
李震宇
(国网山西省电力公司,太原 030021)
Author(s):
LI Zhenyu
(State Grid Shanxi Electric Power Company, Taiyuan 030021,China)
关键词:
电晕 输电线路 过电压波形畸变 ATP/EMTP 电晕Q-V特性
Keywords:
corona transmission line overvoltage waveform distortion ATP/EMTP corona Q-V characteristic
DOI:
10.16188/j.isa.1003-8337.2019.06.019
摘要:
输电线路电晕能够消耗线路上过电压波的电磁能量,使得过电压波幅值衰减、波形畸变,有利于限制线路上的过电压水平。研究冲击电晕对线路过电压波的影响具有重要意义,为此本文建立了输电线路冲击电晕数学模型,用以研究电晕对输电线路暂态电压的畸变效应,该模型考虑了输电线路冲击电晕的物理特性。本文基于电晕伏安特性建立了一种电晕数学模型,并将其带入电磁场暂态分析软件(ATP/EMTP)中计算求解,通过在ATP软件中的用户定义功能研究电晕对输电线路过电压的畸变和衰减现象。比较计算结果与文献中的试验结果,结果表明:数学模型仿真计算结果与试验结果两者具有较好符合性。
Abstract:
A mathematical model of transmission line corona impulse is established to study the effect of corona on the transient voltage distortion of transmission line. Because of the propagation delay characteristic of corona, the calculation accuracy will be reduced, which makes the calculation results far from the actual. At the same time, the voltage-ampere characteristic of corona is more widely used than the propagation delay characteristic. Therefore, based on the corona voltage-ampere characteristic, the author establishes a corona mathematical model and brings it into the electromagnetic field transient analysis software(ATP / EMTP)to calculate and solve. By adopting user defined function in ATP software, the phenomenon of corona distortion and attenuation of transmission line overvoltage is studied. By comparing the calculation results with the experimental results in the literature, it is found that the two have good consistency.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-05-13 作者简介:李震宇(1971—),男,高级工程师,主要研究方向为输变电设备运检管理。
更新日期/Last Update: 2019-12-10