树形双边贯通供电车网电气耦合特性分析

采用双边贯通供电的牵引供电系统相比传统牵引供电系统在结构上发生了改变,其车网电气耦合特性与传统单边供电方式也有所不同。本文结合工程实例,对双边贯通供电的牵引网阻抗特性、牵引供电能力、车网谐波振荡、列车过电分段暂态特性等车网电气耦合特性进行分析,为进一步开展双边贯通供电应用提供参考。

Compared with the traditional traction power supply system,the structure of the traction power supply system with bilateral through power supply has changed,and its train-network electrical coupling characteristics are also different from the traditional unilateral power supply mode.With connection to the actual;engineering practice,the paper analyzes the electrical coupling characteristics of train-network,such as the impedance characteristics of traction network,traction power supply capacity,harmonic oscillation of train-network,sectional transient characteristics of train overcurrent,so as to provide reference for the further application of bilateral through power supply.