城市轨道交通新型牵引供电系统设计探讨
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摘要
将交流供电制式与组合式同相供电技术相结合应用于城市轨道交通牵引供电系统,能有效避免现行直流供电制式存在的杂散电流等缺陷,同时发挥直流制无分相的优势,对城市轨道交通发展意义重大。基于多导体传输理论构建车-网耦合牵引供电负荷过程仿真模型,为系统设计提供仿真平台。以某市地铁2号线为例,利用牵引供电仿真手段对系统采用组合式同相供电方案进行设计,为组合式同相供电技术在实际工程中的应用提供参考。
The application of AC power supply system and combined cophase power supply technology in the traction power supply system of urban rail transit can effectively avoid the stray current and other defects existing in the current DC power supply system,and give full play to the advantages of DC power supply system without phase separation,which is of great significance to the development of urban rail transit.Based on the theory of multi-conductor transmission,a load process simulation model of vehicle-network coupled traction power supply system is constructed,which provides a simulation platform for system design.Taking Metro Line 2 of a city as an example,the traction power supply simulation method is used to optimize the design of the combined cophase power supply scheme for the system,which provides a reference for the application of the combined cophase power supply technology in practical projects.
The application of AC power supply system and combined cophase power supply technology in the traction power supply system of urban rail transit can effectively avoid the stray current and other defects existing in the current DC power supply system,and give full play to the advantages of DC power supply system without phase separation,which is of great significance to the development of urban rail transit.Based on the theory of multi-conductor transmission,a load process simulation model of vehicle-network coupled traction power supply system is constructed,which provides a simulation platform for system design.Taking Metro Line 2 of a city as an example,the traction power supply simulation method is used to optimize the design of the combined cophase power supply scheme for the system,which provides a reference for the application of the combined cophase power supply technology in practical projects.
引文
[1]李群湛.论新一代牵引供电系统及其关键技术[J].西南交通大学学报,2014,49(4):559-568.
[2]李群湛.城市轨道交通交流牵引供电系统及其关键技术[J].西南交通大学学报,2015,50(2):199-207.
[3]杨颢,陈民武,盛望群,等.新型贯通同相供电系统建模与运行特性分析[J].铁道科学与工程学报,2018,15(8):2131-2139.
[4]姚楠.电气化铁道牵引网基波与谐波模型研究[D].北京:北京交通大学,2008.
[5]何俊文.牵引供电系统负荷过程仿真[D].成都:西南交通大学,2010.
[2]李群湛.城市轨道交通交流牵引供电系统及其关键技术[J].西南交通大学学报,2015,50(2):199-207.
[3]杨颢,陈民武,盛望群,等.新型贯通同相供电系统建模与运行特性分析[J].铁道科学与工程学报,2018,15(8):2131-2139.
[4]姚楠.电气化铁道牵引网基波与谐波模型研究[D].北京:北京交通大学,2008.
[5]何俊文.牵引供电系统负荷过程仿真[D].成都:西南交通大学,2010.