中低速磁浮交通牵引供电系统接地保护研究  

Research on the Grounding Protection of Traction Power Supply System in Medium and Low Speed Maglev Transportation

作　　者：盛蓉蓉[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道工程学报》2016年第10期97-101,共5页Journal of Railway Engineering Society

摘　　要：研究目的:国内的一些城市正在建设和将要建设中低速磁浮交通工程,供电系统是中低速磁悬浮交通工程的重要组成部分,直流牵引供电系统直接关系着磁浮交通运营的安全性与可靠性,了解并掌握其与常规轨道交通供电系统的差异,提出中低速磁浮交通的牵引供电系统接地保护方案,对中低速磁浮交通工程的建设有极大的帮助。研究结论:(1)中低速磁浮交通供电系统与城市轨道交通供电系统结构基本一致;(2)磁浮交通供电系统主要的差异在于接触轨型式、回流方式、杂散电流防护等几个方面;(3)以长沙磁浮工程设计为依据,论述磁浮交通供电系统直流接地保护的设置原理、主要性能,分析传统框架保护与直流接地保护的关系,提出了适合于磁浮交通的直流接地保护配置方案;(4)本研究成果可应用于中低速磁浮交通工程的研究和建设。Research purposes： Some domestic cities are building and will build medium and low speed maglev transportation project, the power supply system is an important part of medium and low speed maglev project, DC traction power supply system is concerned with the safety and reliability of maglev traffic operation. This paper tries to understand and master the difference from conventional rail transit power supply system, proposes the grounding protection scheme of traction power supply system for medium and low speed maglev traffic, which has great help for the construction of medium and low speed maglev project. Research conclusions： （ 1 ） The power supply system structures in the low - speed maglev and urban rail transit are basically the same. （2） The main difference of maglev transportation power supply system is lies in the contact rail type, reflux, stray current protection, and so on. （3） Taking Changsha maglev project design as the basis, the setting principle and main performance of magnetic power supply DC system grounding protection are discussed, the relationship of traditional framework protection and DC grounding protection is analyzed, and DC grounding protection configuration scheme suitable for in maglev transportation is proposed. （4） The research results can be applied for the research and construction of the middle and low speed maglev project.

关 键 词：磁浮交通 回流方式 杂散电流防护 直流接地保护 框架保护 

分 类 号：U455[建筑科学—桥梁与隧道工程]