基于高速气流灭弧的防雷间隙的仿真分析和试验研究  

Simulation Analysis and Experimental Research on Lightning-Proof Gap Based on High Speed Air Exhaust Arc

作　　者：黄嘉曦 王巨丰[1,2,3] 闫珅 周鑫 王硕 余杰皓 HUANG Jiaxi;WANG Jufeng;YAN Shen;ZHOU Xin;WANG Shuo;YU Jiehao(School of Electrical Engineering,Guangxi University,Nanning 530004,China;Guangxi Transmission and Distribution Network Lightning Protection Technology Center,Nanning 530004,China;Nanning Chao Fu Electric Technology Co.,Ltd.,Nanning 530004,China)

机构地区：[1]广西大学电气工程学院,南宁530004 [2]广西输配电网防雷技术中心,南宁530004 [3]南宁超伏电气科技有限公司,南宁530004

出　　处：《电瓷避雷器》2019年第5期92-98,共7页Insulators and Surge Arresters

基　　金：国家自然科学基金(编号:50867002)

摘　　要：与传统防雷措施不同,基于高速气流灭弧的防雷间隙是一种新型防雷措施,它是基于普通并联间隙的设计理念,通过加装信号采集器和灭弧筒来实现高速气流熄灭电弧,规避了普通并联间隙不能主动熄灭电弧的瓶颈。本文首先介绍新型防雷间隙的作用机理,通过仿真分析和试验研究来探究高速气流对于由雷击引起的冲击电弧的影响,抑制了工频电弧的深度发展,进而有效地避免了雷击跳闸事故。接着分析了电弧重燃抑制理论,装置在实际挂网运行中取得了优异的效果。Different from the traditional lightning protection measures,the lightning protection gap based on the high-speed airflow arc-extinguishing is a new type of lightning protection measure.It is based on the design concept of common parallel gap,and the high-speed airflow extinguishes the arc by adding signal collector and arc extinguisher,avoiding that common parallel gap cannot take the initiative to extinguish the arc.The mechanism of the new lightning protection clearance is introduced in this paper.The influence of high-speed airflow on the impact arc caused by lightning strike is investigated through simulation analysis and experimental study,which restrains the development of power frequency arc and further avoids the lightning trip.Then it analyzes the theory of arc reignition inhibition,and the device has achieved excellent performance in the actual network operation.

关 键 词：灭弧防雷装置 并联间隙 雷击跳闸 输电线路 电弧 绝缘子串 

分 类 号：TM8[电气工程—高电压与绝缘技术]