基于均匀电场的消雷器应用效果分析研究  

Lightning eliminator based on uniform electric field application effect analysis

作　　者：汤季宇 黄亚峰[1] TANG Jiyu;HUANG Yafeng(College of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China)

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012

出　　处：《电气应用》2023年第8期77-84,I0005,共9页Electrotechnical Application

摘　　要：在自然界中,雷击是一种较为常见的灾害,每年都会造成很多的人员伤亡和设备损坏。而传统避雷针存在较多问题,如保护范围小和存在感应过电压等,现场尝试采用基于均匀电场的新型消雷器进行雷电防护,但是该装置的防护效果一直存在争议。因此利用有限元软件COMSOL对该装置的防护效果进行分析,建立消雷器电场仿真模型,分析其在雷云天气下的周围电场分布,并将其放电现象简化成针板电晕放电,再加入横向风的影响,最终得到不同风速下中和电荷的传递效率。通过这些研究对该装置能否有效防雷展开分析,经仿真研究考虑到该装置的使用效果与自然环境关系密切,同时有效的使用条件较为苛刻,目前须谨慎采用消雷器在现场使用。Lightning strike is a common disaster in nature,which causes many casualties and equipment damage every year.However,traditional lightning rods have many problems,such as small protection range and over-voltage induction.In the field,new lightning eliminators based on uniform electric field are tried to protect lightning,but the protection effect of this device has been controversial.Therefore,the protective effect of the device is analyzed by using the finite element software COMSOL,and the simulation model of lightning eliminator electric field is established to analyze the distribution of the electric field around the device in thundercloud weather.The discharge phenomenon is simplified as pin-plate corona discharge,and the effect of cross wind is added to get the neutralization and charge transfer efficiency at different wind speeds.Through these studies,whether the lightning protection of the device is effective or not is analyzed.The simulation study considers that the effect of the device is closely related to the natural environment,and the conditions for effective use are rather harsh.At present,the lightning eliminator should be used cautiously in the field.

关 键 词：消雷器 均匀电场 有限元法 横向风 

分 类 号：TM86[电气工程—高电压与绝缘技术]