树形双边供电方式下供电能力及电能质量分析  

作　　者：盛望群[1] 宫衍圣[1] 黄文勋[1] 刘若飞 王辉[2] 

机构地区：[1]中铁第一勘察设计院集团有限公司 [2]西南交通大学电气工程学院

出　　处：《电气化铁道》2020年第S02期103-108,共6页Electric Railway

摘　　要：如何减少(取消)电气化铁路电分相已成为各方关注的焦点。不同于电气化铁路传统双边供电方式,电气化铁路树形双边供电既可以取消分区所处电分相,同时也不会产生均衡电流。本文介绍了电气化铁路树形双边供电原理及应用条件,结合工程案例对树形双边供电方式下的供电能力、均衡电流和负序等普遍关注的电能质量问题进行了分析,研究并计算了一种负序补偿方案在不同三相电压平衡度限值下的静止无功发生器的补偿容量。More attentions have been drawn on how to reduce(cancel)as possible the phase breaks set on electrified railways.It is different from the traditional bilateral power supply mode for the electrified railway,in addition to that the tree shape bilateral power supply mode for electrified railway may cancel the phase breaks in sectioning post,it may not produce the balanced current.This paper introduces the principle and application conditions of tree shape bilateral power supply mode for electrified railway;and the paper,in connection to the practical cases of the project,analyzes the power supply capacity,balanced current and negative sequence of the tree shape bilateral power supply mode,studies and calculates the compensation capacity of a negative sequence compensation scheme under different three-phase voltage balance limits.

关 键 词：电气化铁路 双边供电 供电能力 电能质量 

分 类 号：U223.5[交通运输工程—道路与铁道工程]