城市轨道交通供电系统谐波的研究及仿真

Study and Simulation of Harmonic in Power Supply System of Urban Rail Transit

本文主要对城市轨道交通供电系统的谐波进行分析，同时阐述了谐波的危害性。以西安地铁1号线为例，利用MATLAB软件搭建了城市轨道交通的供电系统，并由机车的实际配置物理量创建了城市轨道交通机车的仿真模型。最后利用上述仿真模型仿真了机车在整个运行中110kV侧谐波电流，并分析了所有工况下其谐波分布情况及谐波含量。

This paper mainly analyzes the harmonics of urban rail transit power supply system, and expounds harm of harmonics. Taking Xi＇an Metro Line 1 as an example,the power supply system of urban rail transit is built by using MATLAB software, and the simulation model of urban rail transit locomotive is established by the actual physical configuration of the locomotive. Finally, the harmonic currents at the 110kV side of the locomotive during the whole operation are simulated by using the simulation model, and the harmonic distribution and harmonic content are analyzed under all the conditions.