高电压技术2011，Vol.37Issue(3)：752-757,6.
正极性电晕在空气中的起始判据
Onset Criterion for Positive Corona in Air
摘要
Abstract
It is a key step for the design of the high voltage transmission line to control the corona loss and the corona effects under a reasonable level. The evaluation of the corona onset is especially important for the corona control. We present the derivation and the simplification of a widely used criterion for coaxial cylinders considering the photo-emission, and clarify the physical significance of every parameter in the criterion. Moreover, a geometric factor and its expanded expressions characterizing the photo absorption in the ionization region of the cylindrical electrode are proposed. The results by the criterion and its simplified form under different conductor radii are compared and the difference between them is significantly small under the same conditions. The results by the criterion also well agree with Peek's experimental data for a wide range of conductor radii.关键词
电晕/直流电晕/起晕场强/光电离/面积因子/二次电子Key words
corona/ DC corona/ onset field/ photoionization/ geometric factor/ secondary electron分类
信息技术与安全科学引用本文复制引用
郑跃胜,何金良,张波..正极性电晕在空气中的起始判据[J].高电压技术,2011,37(3):752-757,6.基金项目
国家重点基础研究发展计划(973计划)(2011CB209401). （973计划）
