摘要
广东地区雷电活动强烈和频繁,严重影响电网安全运行,电网防雷形势严峻,在雷电活动特殊强烈地区做好防雷工作能够给电网运行带来显著的安全效益和经济效益。为此,基于主动防雷和区域防雷思想,采用时空聚类算法和对比分析方法,对引雷塔阵列区域的雷暴过程、雷电参数进行研究,评估布置于雷电通道的引雷塔阵列主动防雷、区域防雷效果。研究发现:引雷塔建成后在一定范围内地闪密度和雷电流幅值(均值)呈现上升趋势,引雷塔一定程度上会增加其周围区域的强雷电地闪活动数量,且使靠近引雷塔运动的雷电地闪活动占比提升,并使经过引雷塔后的雷暴地闪活动雷电流幅值降低。运行结果表明,广东电网佛山和深圳基于引雷塔阵列的输电线路主动防雷和区域防雷效果显著。基于引雷塔阵列的电网主动防雷和区域防雷技术具有科学性和可行性,建议进一步深化研究和应用。
The strong and frequent lightning activities in Guangdong have seriously impaired the safe operation of the power grid,the lightning protection situation of the power grid is severe.To elaborately protect the lightning activities in areas with strong lightning activities can bring significant safety and economic benefits to the power grid.Therefore,in this paper,based on the idea of active and regional lightning protection,the temporal and spatial clustering algorithms and comparative statistical analysis methods are used to study the changes in lightning parameters and thunderstorm processes for several years before and after the artificial lightning intervention of the lightning tower in Foshan(a city in Guandong province of China),and the active and regional lightning protection effects of the lightning tower array in the lightning corridor are evaluated.It has been found that,after the completion of the lightning tower,the frequency of ground flashes and the amplitude of lightning currents show an upward trend.The lightning tower will increase the number of strong lightning and ground lightning activities in the surrounding area to a certain extent,and bring it closer to the tower.The proportion of lightning activity moving to tower increases,and the lightning current amplitude of lightning activity after passing the lightning tower is reduced.In addition,the operation results show that the active lightning protection and regional lightning protection effects of the lightning tower arrays in Foshan are very significant.The active and regional lightning protection technology for power grids based on the artificial lightning intervention of lightning tower is scientific and feasible,and it is necessary to deepen the research and application in the future.
作者
彭向阳
邓冶强
王羽
王锐
张鸣
杨晓东
PENG Xiangyang;DENG Yeqiang;WANG Yu;WANG Rui;ZHANG Ming;YANG Xiaodong(Guangdong Key Laboratory of Electric Power Equipment Reliability,Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou 510080,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;Foshan Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Foshan 528000,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2022年第3期1077-1087,共11页
High Voltage Engineering
基金
中国南方电网公司科技项目(GDKJXM20162136)。
关键词
引雷塔阵列
主动防雷
区域防雷
雷电定位系统
聚类算法
雷暴过程
triggering lightning tower array
active lightning protection
regional lightning protection
lightning location system
clustering analysis algorithm
lightning process
