[1]韩 力,周 鑫,李籽剑,等.基于Mayer电弧模型固相气流对电弧熄灭的有效性分析[J].电瓷避雷器,2020,(03):74-80.[doi:10.16188/j.isa.1003-8337.2020.03.012]
 HAN Li,ZHOU Xin,LI Zijian,et al.Analysis of the Validity of Solid Phase Airflow to Arc Extinction Based on Mayer Arc Model[J].,2020,(03):74-80.[doi:10.16188/j.isa.1003-8337.2020.03.012]
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基于Mayer电弧模型固相气流对电弧熄灭的有效性分析()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年03期
页码:
74-80
栏目:
避雷器
出版日期:
2020-06-25

文章信息/Info

Title:
Analysis of the Validity of Solid Phase Airflow to Arc Extinction Based on Mayer Arc Model
作者:
韩 力12 周 鑫12 李籽剑12 王 中12 余杰皓12
(1.广西大学电气工程学院, 南宁 530004; 2.广西输配网防雷工程技术研究中心, 南宁 530004)
Author(s):
HAN Li 12 ZHOU Xin12 LI Zijian12 WANG Zhong12 YÜ Jiehao12
(1.Guangxi University School of Electrical Engineering, Nanning 530004, China; 2.Guangxi Transmission and Distribution Network Lightning Protection Engineering Technology Research Center, Nanning 530004, China)
关键词:
电弧 固相气流灭弧防雷器 能量耗散 Mayer模型
Keywords:
arc solid phase airflow arc extinguisher energy dissipation Mayer model
DOI:
10.16188/j.isa.1003-8337.2020.03.012
摘要:
电网系统在经受雷击过电压后,过电压波传递至绝缘子侧,会造成绝缘子与接地端的击穿放电,从而形成电弧,造成电力系统的工频短路故障。固相气流灭弧防雷器是一种在并联间隙的基础上,利用雷电脉冲触发灭弧弹丸产生高速气流吹灭电弧的灭弧防雷装置,由于固相气流的瞬时触发形成了建弧与灭弧同步性,灭弧弹丸产生的高速气流使得灭弧能量远大于建弧能量,使得在工频电弧的暂态初期熄灭电弧,因此可采用Mayer模型分析计算电弧形成及熄灭时的相关状态参数。本文首先分析了电弧在相气流灭弧防雷器的全空气介质中的能量耗散,从而求得Mayer电弧模型的时间常数,通过MATLAB的Simulink/SPS中的元件建立了电弧模型,从而通过外部雷电脉冲触发分析了固相气流灭弧装置对工频电弧的有效熄灭。最终通过试验验证了理论分析结果计算的有效性。
Abstract:
When the power grid system is subjected to lightning overvoltage, the overvoltage wave is transmitted to the insulator side, which causes the breakdown of the insulator and the ground terminal, thus forming the arc, resulting in the power system short circuit fault. The solid-phase air-jet arc-proofing device is an arc-extinguishing and lightning-proofing device which produces a high-speed air blowout arc by triggering an arc-proof projectile on the basis of the parallel gap. The instantaneous triggering of the solid-phase airflow forms the arcing and arc quenching. High speed air flow makes the arc extinguishing energy far greater than the arc building energy, so that the arc extinguished at the initial stage of the arcing. Mayer model analysis can be used to calculate the relevant parameters of the arc. In this paper, we first analyze the energy dissipation of the arc in the all-air medium of the phase-flow arcing stripper, and obtain the time constant of the Mayer arc model. The arc model is established by the elements in Simulink/SPS of MATLAB; the lightning impulse is used to analyze the effective extinguishing of the power frequency arc by the solid phase airflow arc extinguishing device. Finally, the validity of the theoretical analysis results is verified by experiments.

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备注/Memo

备注/Memo:
收稿日期:2018-07-27 作者简介:韩力(1994—),男,硕士,研究方向为高电压与绝缘技术。
更新日期/Last Update: 2020-07-07