市域铁路电力供电系统关键技术分析
廖芳芳
Analysis of Key Technologies in Urban Regional Railway Power Supply System
LIAO Fangfang
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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.2019.12.008
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中图分类号/CLCN:U239.58
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栏目/Col:研究报告
摘要:
针对AC 25 kV交流供电制式市域铁路车站电力供电系统的负荷分布特点，提出其6个关键技术：中压网络电压等级的选择、双环网供电及环口的设置、供电系统接地方式的选择、单芯电力电缆金属层接地方式、配电所无功补偿的设置及配电所跨所供电实现方式，并对以上6个关键技术进行逐一详细分析和深入研究，以期为今后市域铁路电力供电系统的设计提供有益的参考和依据。
Abstracts:
In this paper, six key technologies of 25 kV AC power supply system for urban regional railway station are put forward according to the load distribution characteristics of power supply system, including selection of voltage level for medium voltage network, setting of double\|loop network power supply and loop port, selection of neutral grounding modes for power supply system, grounding mode of single\|core power cable sheaths, design of reactive compensation at distribution substation, and across-station power supply of distribution substations. Then, each of the six key technologies is analyzed and studied in details, in order to provide useful reference and basis for the future design of municipal railway power supply system.
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