地铁直流牵引供电系统接触网故障点测距方法
王开康吕意
Fault Location Method of Metro DC Traction Power Supply System Catenary
WANG KaikangLYU Yi
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作者信息:中铁第四勘察设计院集团有限公司， 430063， 武汉
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Affiliation:China Railway Siyuan Survey and Design Group Co., Ltd., 430063, Wuhan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.07.045
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中图分类号/CLCN:U231+.8;U228.2+6
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栏目/Col:应用技术
摘要:
分析了地铁直流牵引供电系统中不同的故障点测距方法的优、缺点。提出了一种地铁直流牵引供电系统接触网双端故障点测距方法。根据故障发生时故障点两端的两个牵引变电所直流馈线保护装置采集的电气量，利用经过推算得到的故障点测距公式计算出故障点的位置。分析表明，所提出的双端故障点测距方法消除了过渡电阻和对侧系统对计算结果的影响，可实现对故障点的精确定位。
Abstracts:
The advantages and disadvantages of different methods of fault location measurement in metro DC traction power supply system are analyzed. A metro DC traction power supply system catenary dual-terminal fault location method is proposed. According to the electrical quantities collected by the DC feeder protection devices of the two traction substations at both ends of the fault point when the fault occurs, the fault location formula is used to allocate the fault point. Analysis shows that the proposed dual-terminal fault location method eliminates the influence of transition resistance and opposite system on the calculation results. The analysis can realize the precise allocation of the fault point.
引文 / Ref:
王开康，吕意.地铁直流牵引供电系统接触网故障点测距方法[J].城市轨道交通研究，2022，25（7）：222.
WANG Kaikang，LYU Yi.Fault Location Method of Metro DC Traction Power Supply System Catenary[J].Urban mass transit，2022，25（7）：222.
WANG Kaikang，LYU Yi.Fault Location Method of Metro DC Traction Power Supply System Catenary[J].Urban mass transit，2022，25（7）：222.
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