宁夏电力Issue(1)：18-24,7.DOI:10.3969/j.issn.1672-3643.2013.01.005
蒙特卡洛法计算750 kV输电线路绕击跳闸率的研究
Calculation of shielding failure trip-out rate for 750 kV transmission line based on Monte Carlo Method
宗天元1
作者信息
- 1. 西北农林科技大学水利与建筑工程学院电气系，陕西 杨凌 712100
- 折叠
摘要
Abstract
For accurate evaluation on lightning withstands performance of transmission line, the sto⁃chastic process of lightning stroke is studied by using the Monte Carlo method. It is found that the am⁃plitude of lightning current, striking distance factor, string insulator 50%discharge voltage, the incli⁃nation angle of ground are crucial in the Monte Carlo method. An electric-geometry model (EGM) is used to judge whether the transmission line is shielded or not. The shielding failure trip-out rate of 750 kV transmission lines is calculated, and analyzed the impact of wire height. The result shows that the shielding failure trip-out rate calculated by the Monte Carlo method is convinced and wire height makes a great impact on shielding failure trip-out rate.关键词
蒙特卡罗法/超高压/750 kV/EGM/绕击跳闸率Key words
Monte Carlo method/EHV/750 kV/EGM/shielding failure trip-out rate分类
信息技术与安全科学引用本文复制引用
宗天元..蒙特卡洛法计算750 kV输电线路绕击跳闸率的研究[J].宁夏电力,2013,(1):18-24,7.
