首页|Low-frequency oscillation of train-network system considering traction power supply mode
Low-frequency oscillation of train-network system considering traction power supply mode
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
国家科技期刊平台
NETL
NSTL
万方数据
The low-frequency oscillation(LFO)has occurred in the train-network system due to the introduction of the power elec-tronics of the trains.The modeling and analyzing method in current researches based on electrified railway unilateral power supply system are not suitable for the LFO analysis in a bilateral power supply system,where the trains are supplied by two traction substations.In this work,based on the single-input and single-output impedance model of China CRH5 trains,the node admittance matrices of the train-network system both in unilateral and bilateral power supply modes are established,including three-phase power grid,traction transformers and traction network.Then the modal analysis is used to study the oscillation modes and propagation characteristics of the unilateral and bilateral power supply systems.Moreover,the influ-ence of the equivalent inductance of the power grid,the length of the transmission line,and the length of the traction network are analyzed on the critical oscillation mode of the bilateral power supply system.Finally,the theoretical analysis results are verified by the time-domain simulation model in MATLAB/Simulink.
Low-frequency oscillationTrain-network systemModal analysisBilateral power supplyParticipation factor
Yuchen Liu、Xiaoqin Lyu、Mingyuan Chang、Qiqi Yang
展开 >
School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China
Applied Basic Research Program of Science and Technology Plan Project of Sichuan Province of China
国家科技期刊平台
NSTL
万方数据
