地铁高架段的雷击行波监测
区剑骅
Lightning Traveling Wave Monitoring in Metro Elevated Section
OU Jianhua
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作者信息:国电南瑞科技股份有限公司，210061, 南京
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Affiliation:NARI Technology Development Co., Ltd., 210061, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.11.041
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中图分类号/CLCN:U233+.96;TU895
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栏目/Col:应用技术
摘要:
以南京地铁S3号线雷击行波监测系统在大胜关大桥段的应用为技术研究背景，基于现有雷击行波监测系统的记录数据，阐述了雷电行波电流在接触网牵引供电线路传播过程中的波形分析、小波包能量谱分析、雷击点定位公式的推导。介绍了雷电行波监测系统在南京地铁S3号线高架段接触网牵引供电线路中的应用，及具体的实施解决方案。
Abstracts:
Based on the application of lightning traveling wave monitoring system in Dashengguan bridge section of Nanjing Metro Line S3 and the recorded data of the existing lightning traveling wave monitoring system, the waveform analysis, wavelet packet energy-spectrum analysis and the derivation of the formula of lightning strike point location in the transmission process of the lightning traveling wave current in the catenary traction power supply line are expounded. The application of the lightning traveling wave monitoring system in Nanjing Metro Line S3 elevated section catenary traction power supply circuit and specific implementation solutions are introduced.
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