城市轨道交通牵引供电系统动态运行仿真研究

随着轨道交通向高速、重载、大运量、高密度的方向发展,为各种运营设备提供电能的直流牵引供电系统在安全性和可靠性方面提出了更高的要求。围绕保证城市轨道交通牵引供电系统高效、安全、稳定供电的需求,介绍了直流牵引供电系统的组成,阐述了24脉波整流变压器的原理,基于MATLAB/Simulink仿真平台搭建了牵引变电所整流机组、列车以及接触网模型,并以此为基础搭建了城市轨道交通直流牵引供电系统的仿真模型。通过对列车启动、平稳运行及制动阶段的动态仿真及分析,验证了仿真模型的正确性和有效性,为有关地铁供电系统的各种故障分析提供更多的参考数据和更好的研究平台。

Study On Simulation of Urban Mass Transit Traction Power Supply System Dynamic Operation

With the development of urban rail transit in the direction of high-speed, heavy-load, large capacity and high-density , the DC traction power supply system which is responsible for providing power for a variety of operation e -quipment needs to meet higher requirements in terms of safety and reliability .With efficient , safe and stable power supply demand of urban rail transit traction system , the composition of DC traction power supply system and the prin-ciple of 24-pulse rectifier transformer are introduced .Then, based on MATLAB/Simulink platform, traction substation rectifier, metro and catenary are modeled successively , and the urban rail transit DC traction power supply system simulation model is built simultaneously .By dynamic simulation of train in starting and stable running stage , this pa-per verifies the correctness and effectiveness of the simulation model , and offers a useful research platform and more referenced data on analysis of various faults of metro power supply system .