强激光与粒子束2011，Vol.23Issue(9)：2542-2546,5.DOI:10.3788/HPLPB20112309.2542
考虑磁场闪络抑制效应的真空绝缘堆闪络概率计算
Calculation of vacuum insulator stack flashover probability considering magnetic flashover inhibition
摘要
Abstract
The flashover probability of vacuum insulator stack (VIS) is calculated based on statistical model. The calculation results show that the probability reduces with lower peak voltage of VIS, shorter effective pulse duration, smaller material constant and smaller stack radius in a certain range of VIS voltage. The flashover probability is also calculated with the consideration of magnetic flashover inhibition (MFD under different critical ratios. The critical ratio is defined as the ratio of electric field strength to magnetic induction strength when MFI begins to be effective, and is changed according to different angles between insulator and electrode considering the relation of the three-phase point electric field strength of cathode and the average electric field strength of VIS. The simulation results indicate that the flashover probability is reduced by the effect of MFI.关键词
真空/绝缘堆/闪络概率/磁场闪络抑制效应/统计学闪络经验公式Key words
vacuum/ insulator stack/ flashover probability/ magnetic flashover inhibition/ statistical model分类
信息技术与安全科学引用本文复制引用
李逢,王勐,王传伟,何勇,陈林,邹文康..考虑磁场闪络抑制效应的真空绝缘堆闪络概率计算[J].强激光与粒子束,2011,23(9):2542-2546,5.基金项目
国家自然科学基金项目(50937004) （50937004）
中国工程物理研究院科学技术发展基金项目(2008A0402015) （2008A0402015）
