宁夏电力Issue(2)：60-64,74,6.DOI:10.3969/j.issn.1672-3643.2024.02.010
基于电磁抑制法的架空输电线路防雷装置研究
Research on lightning protection devices for overhead transmission lines based on electromagnetic suppression method
摘要
Abstract
A new lightning protection device using electromagnetic suppression has been developed to enhance the lightning resistance of overhead transmission lines and overcome the limitations of traditional lightning protection devices in reducing the amplitude of lightning current.This method can effectively reduce both the steepness of the lightning current waveform and the peak of the earthward current.The design of the new device's structure and electrical charac-teristics are investigated,including the current-carrying coil and the device's manufacturing techniques.Finally,a prototype is made and subjected to simulation testing.The results indicate that,in comparison to traditional lightning protection devices,the novel device achieves a 54%reduction in the steepness of the lightning current waveform and a 26%reduction in the peak earthward current.Besides,it can accommodate various installation dimensions and direc-tions for tower angle steel,significantly reducing the probability of lightning side flashes and backflashes affecting over-head transmission lines.关键词
输电线路/防雷/电磁抑制法/雷电流/通流电感Key words
transmission line/lightning protection/electromagnetic suppression/lightning current/inductive current-carrying分类
信息技术与安全科学引用本文复制引用
伍弘,房子祎,郝茗,吴波,吴彦亨,李定培..基于电磁抑制法的架空输电线路防雷装置研究[J].宁夏电力,2024,(2):60-64,74,6.基金项目
国网宁夏电力有限公司科技项目(5229DK23000N) （5229DK23000N）
