短空气间隙负极性操作冲击火花放电路径的初始方向统计特性

发布时间：2018-03-01 09:27

本文关键词： 短空气间隙火花放电路径负极性操作冲击电压空间光电离放电路径初始方向角数理统计　出处：《中国电机工程学报》2017年09期 　论文类型：期刊论文

【摘要】：空气间隙火花放电路径具有曲折、分支的半随机发展特点。空间光电离过程光子数量和位置的随机性是导致空气间隙操作冲击火花放电路径具有随机性的主要原因,空间电荷和电场对放电路径的发展具有一定的约束。该文采用250/2500μs负极性操作冲击电压波分别开展了间隙距离为0.4~1.2m的三种不同空气间隙的放电试验,对比分析了间隙距离、负极性操作冲击电压幅值对火花放电路径初始方向角概率分布的影响。结果表明:棒棒间隙、棒双棒间隙火花放电路径初始方向角具有统计特性,且服从正态分布,该分布特性受间隙距离、棒电极形状及外施负极性冲击电压幅值影响。该研究结果可以加深对空气间隙火花放电过程的理论认识。
[Abstract]:The air gap spark discharge path is characterized by twists and turns. The randomness of photon number and position in the spatial photoionization process is the main reason for the randomness of the air gap operation impact spark discharge path. Space charge and electric field have some constraints on the development of discharge path. In this paper, three kinds of air gap discharge experiments with gap distance of 0.4 ~ 1.2m are carried out using 250/2500 渭 s negative operating impulse voltage wave, and the gap distance is compared and analyzed. The effect of the amplitude of the negative operating impulse voltage on the probability distribution of the initial direction angle of the spark discharge path. The results show that the initial direction angle of the spark discharge path has statistical characteristics, and the initial direction angle of the spark discharge path is normal distribution. The distribution characteristics are affected by the gap distance, the shape of the rod electrode and the amplitude of the applied negative impulse voltage. The results of this study can deepen the theoretical understanding of the spark discharge process in the air gap.
【作者单位】：山东理工大学电气与电子工程学院;武汉大学电气工程学院;深圳供电局有限公司;
【基金】：国家自然科学基金项目(51407112) 山东省高等学校科技计划项目(J16LN32) 山东省自然科学基金项目(ZR2016EL17)~~
【分类号】：O461

【相似文献】