CAJ | 학술논문

为了探讨雷电临近预报方法在输电线路雷击预警中的应用,以2013年湖北省宜昌地区一次电力线路雷击灾害事件为例,基于高分辨实时雷达资料和二维闪电定位资料,建立了一种雷电临近预报模型,从而实现对某一区域未来30 min雷电的临近预报;在此基础上,采用雷电预报区域和输电线路网格化方法,计算输电线路和临近雷电预报区域之间的距离,并实现输电线路雷击临近预警.该方法简单、实用,其预警结果可供电力部门进行输电线路雷击风险评估时参考,特别适合于电力部门使用推广.
위료탐토뇌전림근예보방법재수전선로뢰격예경중적응용,이2013년호북성의창지구일차전력선로뢰격재해사건위례,기우고분변실시뢰체자료화이유섬전정위자료,건립료일충뇌전림근예보모형,종이실현대모일구역미래30 min뇌전적림근예보;재차기출상,채용뇌전예보구역화수전선로망격화방법,계산수전선로화림근뇌전예보구역지간적거리,병실현수전선로뢰격림근예경.해방법간단、실용,기예경결과가공전력부문진행수전선로뢰격풍험평고시삼고,특별괄합우전력부문사용추엄.
Taking lightning disaster event occurred along the transmission line at the Yichang Prefecture of Hubei Province in 2013 as an example, in this paper we discuss the application of lighting nowcasting method to transmission line. Based on real-time high resolution radar data and monitoring data from lightning location instrument, we establish a lightning nowcasting model, by which lightning nowcasting within 30 min for a certain regions is made. Furthermore, we make early warning for lightning stroke along the transmission line by using a gridding method and calculating the distance between transmission line and lightning nowcasting region. Being simple and practical, this method is suit-able to be used by the power department. Early warning results can be used as a reference in lightning risk assessment for transmission lines.