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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。
DC power supply network fault analysis of the entire urban rail transit system planning and design, equipment selection, configuration and setting of protection play a decisive role. If the subway DC power supply system failure, it may have a serious impact on the entire power grid. In this paper, the rectifier and DC system in the traction power supply system of the subway are modeled with Matlab / Simulink software. The operating characteristics of the rectifier are analyzed. The dynamic response of the system in the case of near-end short-circuit and short- Design, guide the DC power supply system parameter setting and system debugging provides a valuable reference.