广东电力Issue(1)：56-60,5.DOI:10.3969/j.issn.1007-290X.2014.01.011
灭弧装置内爆炸冲击波的数值模拟及其应用研究
Numerical Simulation of Explosive Shock Wave in Arc-control Device and Its Application Research
摘要
Abstract
The new-type jet stream arcing gap lightning protection device based on channel-type lightning idea is able to rap-idly respond lightning current and produce high-speed and high voltage gas shock wave resulted from explosion which may act on power-flow current in transient developing stage and cause extinguishment of electric arc.The arc-control device includes arcing TNT explosive,ring after lightning pole and semi-closed cylindrical arcing chamber.Therefore,this paper discusses establishment of mathematical model for semi-closed explosive shock wave of arc-control device by using ANSYS AUTO-DYN finite element analysis software in order to study attenuation propagation law of arcing explosive shock wave in semi-closed arcing chamber.According to propagation characteristics of explosive shock wave,it analyzes probable earliest cut point distribution of air gap power-flow current arc under the role of TNT explosive shock wave and its restriction role on re-strike of the gas arc.关键词
喷射气流灭弧防雷间隙装置/半封闭灭弧室/TNT炸药/数值模拟/衰减规律Key words
jet stream arcing gap lightning protection device/semi-closed arcing chamber/TNT explosive/numerical simula-tion/attenuation law分类
信息技术与安全科学引用本文复制引用
吴焰龙,李世民,闫仁宝,王巨丰,郭伟,梁雪..灭弧装置内爆炸冲击波的数值模拟及其应用研究[J].广东电力,2014,(1):56-60,5.基金项目
国家自然科学基金资助项目(50867002) （50867002）
