城市轨道交通直流牵引供电网短路故障分析  

Analysis of Short-circuit Fault in DC Traction Power Supply System for Urban Mass Transit

作　　者：王乃永 艾兵[2] 李静[1] 曹晖[1] 吴广宁[2] 

机构地区：[1]陕西省西安供电局,陕西西安710032 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《大功率变流技术》2010年第3期24-27,32,共5页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：直流供电网故障分析对整个城市轨道交通系统的规划设计、设备选型、保护配置与整定都起着举足轻重的作用。若地铁直流供电系统内部出现故障,有可能对整个电网造成严重影响。本文应用Matlab/Simulink软件对地铁牵引供电系统中的整流器和直流系统进行建模,分析了整流器的运行特性,研究了直流供电网在近端短路和远端短路情况下系统的动态响应,为优化设计、指导直流供电系统的参数设置和系统调试提供了有价值的参考。Fault analysis of DC traction power supply system plays an important role in programming and designing, equipment choice, scheme protection and debugging of the whole urban mass transit. The whole power grid may be influenced badly if the metro DC power supply system suffers short-circuit fault. It presents a model of rectifier and DC system for metro traction power supply system based on Matlab/ Simulink, analyzes the operation characteristic of the rectifier, researches dynamic response of the close short-circuit and the distant shortcircuit fault for DC power supply system, which provides a valuable reference for the design optimization, parameter setting and system debugging.

关 键 词：直流牵引供电系统 整流器 短路故障 

分 类 号：U231.8[交通运输工程—道路与铁道工程]