城市轨道交通牵引变电所主接线的优化分析

Optimization Analysis of Main Electrical Scheme of Traction Substation in Urban Rail Transit

城轨交通因其行车速度快、无污染,在城市中发挥了重要的作用。然而既有直流供电方案建设初期投资大等问题影响了城轨交通的高速发展。城轨交通牵引供电系统变电所直流主接线形式多样,本文将对目前国内采用的主接线形式进行分析,研究城轨交通牵引变电所牵引整流机组接入方式,直流负极开关位置等,为同类工程方案选择提供参考。

Urban rail transit has played an important role in cities because of its fast driving speed and no pollution.However,the large investment in the initial construction of the existing DC power supply scheme has affected the rapid development of urban rail transit.There are various forms of DC main electrical scheme in the substation of urban rail transit traction power supply system.This article will analyze the main electrical scheme forms currently used in China,study the connection mode of the traction rectifier unit of the urban rail transit traction substation and the position of the DC negative switch,thus providing reference for the selection of similar project schemes.