以二十四节气为统计周期的陕西省雷电地闪数量时间分布特征

Time Distribution Characteristics of the Number of Ground Flashes in Shaanxi Province with Twenty-four Solar Terms as Statistical Period

为进一步提高陕西省输电线路防雷运维工作的精细化水平,基于陕西省2010年至2018年雷电定位系统监测数据,经过对比研究发现,采用二十四节气作为统计周期单位能更精确地描述陕西各地在1个自然年内地闪数量随时间的变化规律。在此基础上开展陕西省雷电地闪数量时间分布特征研究,获得陕西省各地区地闪活跃期和高峰期起止节气,同时给出了陕西省各地区输电线路防雷巡视期、重点关注期以及防雷技改窗口期的建议时间。研究成果可为陕西省各级电力公司在输电线路防雷巡视管理和技术升级改造中的决策制定和工作开展提供参考。

In order to further improve the refinement level of lightning protection operations of transmission lines in Shaanxi Province, based on the monitoring data of lightning location system in Shaanxi Province from 2010 to 2018, it is found that the use of“ twenty- four solar terms”as a statistical period unit can more accurately describe the change of the number of ground flashes in a natural year in Shaanxi Province. On this basis,the study on the time distribution characteristics of the number of ground flashes in Shaanxi province is carried out,and the active period and peak period for the ground flashes in the various regions of Shaanxi Province are obtained. At the same time,the proposal time for patrol period,focus period and window period of technical transformation in lightning protection of transmission lines in various regions of Shaanxi province are given. The research results can provide reference for the decision-making and work of the power companies in Shaanxi Province in the lightning protection patrol management and technical upgrading of transmission lines.