期刊论文

Calculation on Power Frequency Electric Field and Its Protection for 500 kV Double-Circuit on Same Tower compact Transmission Lines

中文

电力学报

1005-6548

2019

34

6

513-523

10.13357/j.cnki.jep.002838

本校为第一机构

由于我国电力工业迅速发展,建设了大量的超/特高压输电线路,其中500 kV输电线路作为最主要的电压等级,业内对其造成的电磁环境问题广为关注,因此,深入研究500 kV输电线路下方工频电场强度及其改善措施显得尤为重要.将国网湖南省电力有限公司管辖的某500 kV同塔双回紧凑型输电线路工程作为研究对象,建立与实际比例相同的同塔双回紧凑型500 kV输电线路计算模型,在基于模拟电荷法计算方法的基础上与矩量法相结合,完成了500 kV工频电场的数值计算,分析了线路下方1.5m处工频电场分布情况,研究了架设屏蔽线(网)来降低线路下方工频电场强度的方法.为了找到最优的屏蔽线(网)架设方案,对屏蔽线架设高度、...

Due to the rapid development of China’s power industry,a large number of ultra/UHV transmission lines have been built,and 500 kV transmission lines are the most important voltage level.The industry is most concerned about the electromagnetic environment caused by it.Therefore,in-depth study of the 500 kV transmission line below Frequency electric field strength and its improvement measures are particularly important.This paper will be the research project of the 500 kV double-circuit compact transmission line of the same tower from a transform...