Risk Assessment on Induced Lightning Flashover of Distribution Network Based on Geography Information

Lei Xiao; Chen Mengjun; Liu Xiaojiang; Liao Wenlong; Liu Qiang

doi:10.16527/j.issn.1003-6954.20210101

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Risk Assessment on Induced Lightning Flashover of Distribution Network Based on Geography Information

更新时间：2026-02-13

- Risk Assessment on Induced Lightning Flashover of Distribution Network Based on Geography Information
- Vol. 44, Issue 1, Pages: 1-4+76(2021)
- 作者机构：
  
  1. 国网四川省电力公司电力科学研究院
  2. 国网四川省电力公司自贡供电公司
- 作者简介：
- 基金信息：
- DOI：10.16527/j.issn.1003-6954.20210101
  CLC： TM863
- Published：2021
- 稿件说明：
移动端阅览
[1]雷潇,陈梦军,刘小江,廖文龙,刘强.基于地理信息的配电网感应雷闪络风险评估[J].四川电力技术,2021,44(01):1-4+76.

Lei Xiao, Chen Mengjun, Liu Xiaojiang, et al. Risk Assessment on Induced Lightning Flashover of Distribution Network Based on Geography Information[J]. 2021, 44(1): 1-4+76.
[1]雷潇,陈梦军,刘小江,廖文龙,刘强.基于地理信息的配电网感应雷闪络风险评估[J].四川电力技术,2021,44(01):1-4+76. DOI： 10.16527/j.issn.1003-6954.20210101.

Lei Xiao, Chen Mengjun, Liu Xiaojiang, et al. Risk Assessment on Induced Lightning Flashover of Distribution Network Based on Geography Information[J]. 2021, 44(1): 1-4+76. DOI： 10.16527/j.issn.1003-6954.20210101.

摘要

感应雷过电压是10 kV配电网跳闸和停运的主要原因。为评估其风险

首先

建立了感应雷过电压的电磁暂态仿真模型

分析了雷击距离、雷电流幅值、土壤电阻率对过电压幅值的影响

据此提出了一种感应雷过电压幅值简化计算方法;然后

根据输配电线路杆塔坐标、土壤电阻率和雷电流幅值概率密度

建立配电网杆塔闪络概率计算模型;最后

结合地闪密度构建感应雷闪络风险评估模型。

Abstract

Induced lightning overvoltage is the main reason for the tripping and shutdownn of 10 k V distribution network. Inorder to assess the risk

the electromagnetic transient simulation model of induced lightning overvoltage is established firstly. The influences of lightning distance

lightning current amplitude and soil resistivity on the overvoltage amplitude are analyzed

and a simplified calculation method for induced lightning overvoltage amplitude is proposed. And then

according to the tower coordinates

soil resistivity and probability density of lightning current amplitude of transmission and distribution lines

the calculation model for lightning flashover probability of distribution network tower is established. Finally

the risk assessment model of induced lightning flashover is constructed combined with the lightning density.

关键词

Keywords

references

土壤电阻率对10kV架空线路雷害风险的影响研究 [J]. 雷潇,刘强,刘守豹,刘小江. 电瓷避雷器 . 2016(06)

架空配电线路雷电感应过电压计算研究 [J]. 边凯,陈维江,李成榕,沈海滨. 中国电机工程学报 . 2012(31)

配电线路感应雷过电压计算 [J]. 李琳,齐秀君. 高电压技术 . 2011(05)

20kV架空绝缘电缆防雷措施的研究 [J]. 赵磊,张建文,夏云忠,赵时. 高压电器 . 2010(10)

DL/T 620-1997. 交流电气装置的过电压保护和绝缘配合 [S]. 1997

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