高电压技术2012，Vol.38Issue(11)：2881-2888,8.
雷击超高压交流输电线路对埋地输油输气管道的电磁影响
Electromagnetic Effects on Underground Oil/Gas Pipeline of the Lightning Strike on EHV AC Transmission Line
摘要
Abstract
Taking a 750kV EHV double circuit line on the same tower for example,we studied the electromagnetic influence of the lightning strike on underground oil/gas pipeline on transmission line.By modeling of EMTP,we can obtain the distribution characteristics of current along ground wire and tower and the effect of ground impedance and lightning location after lightning strikes on tower.Based on the computational model for the method of moment,the distribution characteristics of the metal potential,coating potential,and coating stress voltage on the oil/gas pipeline parallel to or across the transmission line are investigated,and the approximate expression for the cross is obtained,which involves the lightning current,pipeline type,soil resistivity,and the distance between the pipeline and tower grounding structure.With the lightning electrical strengths of different coatings,we can achieve the safety distance between the pipeline and tower grounding structure for different lightning current peaks,providing important reference data for power engineering and oil/gas pipeline construction.关键词
超高压交流输电线路/输油输气管道/雷击/感性耦合/阻性耦合/矩量法Key words
EHV AC transmission line/oil/gas pipeline/lightning strike/inductive coupling/resistive coupling/method of moment分类
信息技术与安全科学引用本文复制引用
安宁,彭毅,艾宪仓,黄国权,施英,张明光..雷击超高压交流输电线路对埋地输油输气管道的电磁影响[J].高电压技术,2012,38(11):2881-2888,8.基金项目
甘肃省电力公司科技项目 （）
