高电压技术2011，Vol.37Issue(7)：1606-1613,8.
土壤电离动态过程对接地装置冲击散流的影响分析
Effect Analysis About Impulse-current Dispersal Regularity of Grounding Device Under Transient Ionization Phenomenon of Soil
摘要
Abstract
When impulse current dissipates into earth through the grounding system, the impulse dispersal process is characterized with nonlinear feature as the result of the dynamic ionization of soil, which finally has a great effect on the dispersal regularity. Based on the experiment and simulation, the effect of the soil dynamic ionization on dispersal process of grounding devices was studie＆ A nonlinear computation model considering the soil dynamic ionization was presented. Based on the measurement and simulation results, the dispersal regularities of various grounding electrodes were analyzed. Moreover, the shielding effect between grounding electrodes, as well as the effect of soil i- onization process on lightning transient dispersal regularity, was discussed based on the spark discharge theorem. The results show that. the effect on impulse current disoersal caused by soil ionization is unignorable.关键词
接地/冲击散流/土壤电离/火花放电/电流分布/暂态电阻Key words
grounding/impulse-current dispersal/soil ionization/spark breakdown/current distribution/transientresistance分类
信息技术与安全科学引用本文复制引用
袁涛,李景丽,司马文霞,杨庆,孟宪丰,田川..土壤电离动态过程对接地装置冲击散流的影响分析[J].高电压技术,2011,37(7):1606-1613,8.基金项目
国家重点基础研究发展计划（973计划）（2009CB724504）. （）
