Improved Model of Impulse Corona on Ultra High Voltage Alternating Current Transmission Lines

WEN Yi; LI Chun; LI Jianming

doi:10.13296/j.1001-1609.hva.2015.02.010

您当前的位置：

首页 >

文章列表页 >

Improved Model of Impulse Corona on Ultra High Voltage Alternating Current Transmission Lines

更新时间：2025-04-26

- Improved Model of Impulse Corona on Ultra High Voltage Alternating Current Transmission Lines
- High VoltageApparatus Vol. 51, Issue 2, Pages: 63-72(2015)
- 作者机构：
  
  1. 西华大学电气信息学院
  2. 2. 国网四川检修公司
  3. 国网四川雅安电力(集团)公司
  4. 国网四川电科院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.02.010
  CLC： TM863
- Published：2015
- 稿件说明：
移动端阅览
[1]文艺,李淳,李建明.一种特高压交流输电线路冲击电晕的改进模型[J].高压电器,2015,51(02):63-72.

WEN Yi, LI Chun, LI Jianming. Improved Model of Impulse Corona on Ultra High Voltage Alternating Current Transmission Lines[J]. High voltageapparatus, 2015, 51(2): 63-72.
[1]文艺,李淳,李建明.一种特高压交流输电线路冲击电晕的改进模型[J].高压电器,2015,51(02):63-72. DOI： 10.13296/j.1001-1609.hva.2015.02.010.

WEN Yi, LI Chun, LI Jianming. Improved Model of Impulse Corona on Ultra High Voltage Alternating Current Transmission Lines[J]. High voltageapparatus, 2015, 51(2): 63-72. DOI： 10.13296/j.1001-1609.hva.2015.02.010.

摘要

在变电站设备雷电绝缘裕度设计中

忽略输电线路上冲击电晕引起的雷电侵入波的衰减畸变

使得电气设备雷电绝缘裕度的要求过严

加之冲击电晕对特高压输电线路绕击耐雷水平计算值也有很大影响

这都让特高压输电线路上冲击电晕效应的研究显得很有必要。笔者提出了一种既考虑避雷线上电晕和起晕导线间耦合作用

又考虑输电线路与大地间电晕电容分布特点的多导线冲击电晕模型

该模型更符合冲击电晕放电的实际情况。同时

建立了计及上述电晕模型的特高压交流线路的雷电绕击仿真电路。结果表明

冲击电晕会对线路上的波过程产生影响

使雷电过电压波的幅值和陡度发生衰减和波形

从而提高了线路绕击耐雷水平的计算值。

Abstract

In the lightning insulation margin design of substation equipment

the attenuation and distortion of inbreaking lightning wave induced by impulse corona on transmission lines are ignored

leading to an over-strict requirement for the insulation margin. And the impulse corona exerts a significant influence on the withstand level calculation of lightning shielding failure. Therefore

it is necessary to investigate the impulse corona effect on UHV transmission lines. In this paper

a multi-conductor impulse corona model is proposed by considering the corona effect of overhead ground wire

the coupling between the transmission lines with corona

and the distribution feature of the corona capacitance between transmission line and ground. This model is well in accordance with the actual impulse corona discharge. Moreover

a lightning shielding failure simulation circuit of UHVAC transmission lines with corona is constructed by using ATP-EMTP. Simulation results show that impulse corona influences the wave process on the line to attenuate and distort the amplitude and steepness of lightning wave

so as to raise the withstand level of lightning shielding failure.

关键词

Keywords

references

Views

190

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Calculation and Analysis on Main Insulation Flashover Fault of Circuit Breaker Caused by Lightning Overvoltage

Electromagnetic Transient Modeling and Analysis on Fault of PT High Voltage Fuse at Generator Outlet

Research on Switching Reignition Over-voltage of Compensation Capacitor Bank Based on Series Nonlinear Resistor Combination Switch

Analysis on Electromagnetic Interference of Short Circuit Current to Secondary Equipment and Research on Anti-interference Measures

Study on The Suppression of High Frequency Reignition Overvoltage of Offshore Wind Farm Based on Magnetic Ring

Related Author

LI Shuang

GENG Lina

ZHONG Yafeng

HAN Honggang

WANG Qinghua

CAO Huafeng

CHEN Yulin

LUO Kewu

Related Institution

State Grid Liaoning Electric Power Research Institute

Tianshengqiao Hydropower Plant, Guangdong Energy Group

College of Electrical Engineering, Guangxi University

School of Electrical Engineering, Xi'an Jiaotong University

Inner Mongolia EHV Power Supply Company

⁰