配网线路新型灭弧装置熄灭工频电弧的仿真与试验研究

唐佳雄; 王国锋; 徐宇恒; 张清河; 庞智毅

唐佳雄,王国锋,徐宇恒,张清河,庞智毅.配网线路新型灭弧装置熄灭工频电弧的仿真与试验研究[J].电测与仪表,2022,59(8):120-126.
tang jia xiong,WANG GUO FENG,xu yu heng,ZHANG qing he,pang zhi yi.Study on Extinguishing Power Frequency Arc by New Arc Extinguishing Device in Distribution Line[J].Electrical Measurement & Instrumentation,2022,59(8):120-126.

配网线路新型灭弧装置熄灭工频电弧的仿真与试验研究

Study on Extinguishing Power Frequency Arc by New Arc Extinguishing Device in Distribution Line

DOI：10.19753/j.issn1001-1390.2002.08.016

中文关键词: 配网线路气吹弧多点截断高速气流工频续流防雷效果

英文关键词:Distribution line,, air-blowing arc, multi-point truncation, High-speed airflow, power frequency continuation, lightning protection

基金项目:国家自然科学基金项目（ 51467002）

作者中文名	作者英文名	单位
唐佳雄	tang jia xiong	广西大学电气工程学院
王国锋	WANG GUO FENG	广西大学电气工程学院
徐宇恒	xu yu heng	广西大学电气工程学院
张清河	ZHANG qing he	广西大学电气工程学院
庞智毅	pang zhi yi	广西大学电气工程学院

摘要点击次数: 1465

中文摘要:

针对配网线路耐雷水平低，容易发生雷击导线断线、断路器跳闸的问题，基于“气吹弧”的思想研制了一种带有主动灭弧功能的多断口灭弧防雷装置。该装置能够控制电弧运动轨迹，利用其特殊的空间多断口结构迫使电弧多点截断，并在断口处产生高速气流抑制工频电弧暂态初始发展阶段，在电弧“萌芽期”就将其熄灭。文中首先对多断口灭弧防雷装置的结构和灭弧原理进行了深入分析；其次利用COMSOL Multiphysics仿真软件对气流产生过程及熄灭电弧的过程进行量化分析；然后根据IEC相关规定搭建了冲击闪络试验与工频续流试验相结合的试验平台，进行了工频续流遮断试验，试验得出装置能在1~2 ms内将幅值为1 kA的续流电弧熄灭；最后根据实际运行数据分析了装置的防雷效果，运行数据显示该装置已经多次成功动作，能够大幅度降低线路的跳闸率和事故率。

英文摘要:

In view of the low level of lightning resistance of distribution network lines, which is easy to break the lightning conductor and trip the circuit breaker, a multi break arc extinguishing and lightning protection device with active arc extinguishing function is developed based on the idea of "gas arc blowing". The device can control the arc movement track, force the arc to be cut off at multiple points by using its special spatial multi fracture structure, and generate high-speed airflow at the fracture to restrain the initial development stage of power frequency arc transient, and extinguish it at the "embryonic stage" of the arc. In this paper, firstly, the structure and principle of multi fracture arc extinguishing and lightning protection device are analyzed; secondly, COMSOL is used Multiphysics simulation software makes quantitative analysis on the process of air flow generation and arc extinction; then, according to the relevant provisions of IEC, a test platform combining impulse flashover test and power frequency continuous current test is built, and the power frequency continuous current interruption test is carried out, and the test results show that the device can make the amplitude of 1 to 2 ms Finally, according to the actual operation data, the lightning protection effect of the device is analyzed. The operation data shows that the device has been successfully operated for many times, which can greatly reduce the trip rate and accident rate of the line.

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