牵引网贯通式同相供电主电路设计与分析  

Design and Analysis of the Main Circuit of the Co-phase Continuous Traction Power Supply System

作　　者：王志峰[1] 周毅[1] 王雅婷[1] 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081

出　　处：《铁道机车车辆》2017年第4期90-93,共4页Railway Locomotive & Car

摘　　要：同相供电是解决现有铁路牵引供电系统负序问题和过分相问题的一种最佳方式,其主电路设计尤为重要。结合目前流行的变流器模块化设计理念,提出了一种基于模块化的主电路设计方案,整流及均逆变侧能实现变流模块的相互替换;通过从电网侧的3相同时取电,并通过每相的交叉变流,实现冗余设计;通过开关的实时旁路设计,实现故障变流模块的在线退出和替换,提高系统的可靠性和检修效率。Co-phase power supply is one of the best ways to solve the problem of negative sequence and excessive phase of existing traction power supply system. Topology design of the main circuit is very important. A modular design of the main circuit is proposed which can realize the mutual replacement of the converter modules both on the grid side and the traction side. In addition, by taking the three phases from the grid side at the same time, then through the cross-flow of each phase to achieve redundancy design; through the switch real-time bypass design, achieve failure converter module online exit and replacement, finally improve system reliability and maintenance capacity

关 键 词：铁路 同相供电 模块化 

分 类 号：U223.2[交通运输工程—道路与铁道工程]