一种基于晶闸管整流器的直流牵引供电系统  

A DC Traction Power Supply System Based on Thyristor Rectifier

作　　者：陈隆[1] 周士琼[1] 夏焰坤[2] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]西华大学电气工程学院,四川成都610039

出　　处：《四川电力技术》2016年第3期54-58,94,共6页Sichuan Electric Power Technology

摘　　要：直流母线短路故障时,直流侧进线短路电流剧增,加大了直流侧进线断路器的开断难度,再由于中国城市轨道交通的故障率上升,导致直流侧进线断路器易损坏、寿命低。鉴于这个问题,提出一种基于晶闸管整流器的直流牵引供电系统,以晶闸管整流器完成整流和分合电路的功能,可省却直流侧进线断路器以及缩短故障切除时间,同时分析了其整流质量、谐波问题、进线短路电流和市场经济性问题。最后在Matlab/Simulink搭建仿真模型验证了该方案的可行性,为提高直流牵引供电系统的整体性能提供参考。The short-circuit current of DC side line surges when DC bus has short -circuit fault , which increases the difficul-ty of breaking DC side line breakers .And because the fault rate of urban rail transit in China increases , the breakers of DC side line are easily damaged and have a short life .A DC traction power supply system based on thyristor rectifier is put forward according to the above-mentioned problems .The thyristor rectifier is used to complete the functions of rectification and switc-hing the circuit .And the circuit-breakers of DC side line and the time to remove the faults can be saved .Then its quality of rectification, harmonic problems , line short -circuit current and the economic issues are analyzed .Finally, the simulation model is established in Matlab/Simulink to verify the feasibility of the proposed scheme , which can provide a reference for im-proving the overall performance of DC traction power supply system .

关 键 词：直流牵引供电系统 晶闸管整流器 直流侧进线短路电流 仿真模型 

分 类 号：TM721.1[电气工程—电力系统及自动化]