基于Simulink/MATLAB的实际地铁线路供电系统短路试验仿真分析  

Simulated Short-Circuit Testing and Analysis of an Actual Metro Line Power Supply System Based on Simulink/MATLAB

作　　者：陈生[1] 李忠良 CHEN Sheng;LI Zhongliang

机构地区：[1]福建水利电力职业技术学院交通工程学院,福建永安366000

出　　处：《科技创新与应用》2024年第17期72-75,81,共5页Technology Innovation and Application

基　　金：福建省中青年课题项目(JAT210742)。

摘　　要：直流牵引供电系统在城市轨道交通中扮演着关键角色,其安全可靠的运行对整个城市轨道交通系统的运行至关重要。该文首先介绍地铁牵引供电系统的结构和功能,并建立地铁外部交流电源、整流机组和牵引网络的仿真模型。该仿真模型根据实际地铁牵引供电系统的结构和参数进行构建,旨在研究不同短路情况下的短路特性,包括电源出口短路、近距离短路和远距离短路。通过评估供电系统在短路故障下的稳定性和可靠性,得出若干研究结果。这些结果为地铁供电系统选择合适的一次设备提供理论依据,有助于确保城市轨道交通供电系统的稳定性和可靠性。DC traction power supply system plays a key role in urban rail transit,and its safe and reliable operation is very important to the operation of the whole urban rail transit system.Firstly,this paper introduces the structure and function of subway traction power supply system,and establishes the simulation models of subway external AC power supply,rectifier unit and traction network.The simulation model is constructed according to the structure and parameters of the actual subway traction power supply system,and aims to study the short-circuit characteristics under different short-circuit conditions,including power outlet short-circuit,short-distance short-circuit and long-distance short-circuit.By evaluating the stability and reliability of power supply system under short circuit fault,some research results are obtained in this paper.These results provide a theoretical basis for selecting appropriate primary equipment for the subway power supply system,and help to ensure the stability and reliability of the urban rail transit power supply system.

关 键 词：城市轨道供电系统 牵引系统 短路电流 建模仿真 保护装置 

分 类 号：U224.3[交通运输工程—道路与铁道工程]