输电线路外部雷击风险评估模型的研究

External Lightning Risk Assessment Model for Transmission Line

对浙江电网输电线路雷击跳闸与地闪密度、地闪强度、海拔及地面坡度等因素的相关性研究进行了论述,在此基础上,建立了输电线路外部雷击风险多要素综合评估模型,提出了雷击风险等级区划方法,并介绍了模型的实际评估效果。

This paper elaborates the research on the relevance between transmission line lightning trip in Zhejiang power grid and some influencing factors （ cloud-to-ground lightning density and strength, altitude and ground slope, etc. ） Thereupon, it establishes the comprehensive multi-factor evaluation model for transmission line external light- ning risk assessment, and introduces the practical assessment effect of the proposed model.