摘要
针对10~35kV级配电线路防雷保护配置方案无法指导特殊环境、高供电可靠性架空线的情况,着重分析连续倾斜架空线感应雷过电压幅值;首先,运用有限元方法建立山坡架空线杆塔感应电场强度分析模型,分析各级杆塔最大空间电场强度;其次,运用ATP-EMTP电磁仿真软件,建立抽水蓄能电站架空线分布参数模型;最后,在雷击输电线与避雷线情况下,对现有配置及改进措施防雷效果进行对比,提出改进建议。
The general lightning protection configuration for 10-35 kV distribution lines cannot be utilized in the design of the lightning protection for overhead lines directly due to the special environment or requires of high power supply reliability.This paper focuses on the reformation of overhead line lightning protection for a Power station 10 kV continuous tilt.Firstly,the amplitudes of lightning induced overvoltage are firstly analyzed for continuous tilt overhead lines.Then,by utilizing the finite element method,a model is established to analyze the inducted electric field strength of hillside overhead line towers.Finally,a distributed parameters model for pumped storage power station overhead lines is built on the basis of the ATP-EMTP software.Considering the case that the transmission line and overhead ground wire are stroked by the lightning,the lightning protection effect is compared between the existing configuration and the proposed configuration for technical suggestion.
作者
张淼
汤心韵
周力行
王贝
ZHANG Miao;TANG Xin-yun;ZHOU Li-xing;WANG Bei(State Grid Hunan Electric Power Limited Company Zhangjiajie Power Supply Branch, Zhangjiajie 427000,China;School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China)
出处
《电力科学与技术学报》
CAS
北大核心
2019年第2期169-174,共6页
Journal of Electric Power Science And Technology
基金
国家自然科学基金青年基金(51407013)
关键词
抽水蓄能电站
倾斜架空线
防雷措施
有限元
ATP-EMTP
pumped storage power station
inclined overhead line
lightning protection measures
finite element
ATP-EMTP
