高速重载列车已成为我国电气化铁路发展的必然趋势。为此介绍了最适合于大电流运行的复线AT供电网络,并针对不同形式的复线AT网络,尤其是全并联复线AT网络的阻抗特性、正常运行时电流分布及短路电流进行了分析和仿真,可为今后的实际工程应用提供理论参考。 High-speed heavy-duty train has become the inevitable trend of the development of China’s electrified railway. This paper introduces the AT power supply network which is most suitable for high current operation and analyzes and simulates the impedance characteristics of different forms of AT network, especially the full parallel AT network, the current distribution and short circuit current in normal operation, It can provide theoretical reference for practical engineering application in the future.