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文章摘要
基于多重雷击防护的爆轰气流灭弧机理研究
Research on Explosion Airflow Arc-extinguish Mechanism Based on Multiple Lightning Protection
Received:July 22, 2019  Revised:August 06, 2019
DOI：10.19753/j.issn.1001-1390.2021.01.012
中文关键词: 多重雷击  爆轰气流  电弧  重复建弧  灭弧筒
英文关键词: multiple lightning, explosion airflow, arc, repeated arcing, arc-extinguishing cylinder
基金项目:国家自然科学基金项目（50867002）
Author NameAffiliationE-mail
wangguofeng* Guangxi University 1227790919@qq.com 
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中文摘要:
      当多重雷击连续向输电线路放电时，将会对电网安全稳定运行造成严重打击，雷击跳闸事故会造成重大的安全隐患与经济损失。由于目前对多重雷击的防护存在空白，故提出了一种通过雷电诱导爆轰气流的灭弧防雷装置，实现对多重雷击重复建弧防护的全覆盖。首先对灭弧原理进行了简单分析论证；然后建立了数学模型，对爆轰气流在灭弧筒内的作用效果进行分析计算；提出了多重雷击模型，并用fluent仿真软件对气流与电弧的耦合过程进行模拟；最后通过实验验证装置对多重雷击防护的可靠性。结果表明：爆轰气流能在0.5L的刚性空间内维持5.65MPa的强气压2.64ms；电弧能在气流正压作用时间内可靠熄灭，且未发生重燃，有效抑制了多重雷击下的重复建弧。
英文摘要:
      
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