电气化铁路贯通式同相供电系统方案及控制策略  

Study on Scheme and Control Strategy of Through Co-phase Power Supply System for Electrified Railway

作　　者：祁忠永 QI Zhongyong(Design&Research Institute,China Railway Electrification Bureau(Group)Co.Ltd,Beijing 100166,China)

机构地区：[1]中铁电气化局集团设计研究院,北京100166

出　　处：《铁道工程学报》2024年第5期67-72,共6页Journal of Railway Engineering Society

摘　　要：研究目的:电气化铁路传统牵引供电系统采用异相单边供电,牵引网需设置电分相,存在无电区,且部分线路设置电分相困难。本文研究牵引供电系统采用贯通式同相供电,经过交直交变换使全线相序一致,从而取消牵引网电分相,消除无电区。研究结论:(1)分析了传统异相供电和贯通式同相供电的特点,并给出了两种系统原理结构;(2)搭建了贯通式同相供电整流系统的数学模型,给出了基于PWM整流技术的控制算法;(3)以集通铁路电气化改造工程为背景进行仿真计算,验证方案的有效性;(4)以电气化铁路工程为例进行了经济性分析,并给出投资回收期;(5)本文研究内容可为电气化铁路贯通式同相供电系统应用提供技术参考。Research purposes:The traditional traction power supply system of electrified railway adopts different phase unilateral power supply,and the traction network needs to be provided with electric phase separation,which has no electricity area,and it is difficult to set electric phase separation in some railways.In this paper,the traction power supply system adopts through co-phase power supply,and the phase sequence of the whole line is consistent through AC-DC-AC conversion,so as to cancel the electric phase separation of the traction network and eliminate the dead zone.Research conclusions:(1)The characteristics of traditional different phase power supply and through co-phase power supply are analyzed,and the principle structures of two systems are given.(2)The mathematical model of the through co-phase power supply rectifier system is established,and the control algorithm based on PWM rectifier technology is given.(3)Taking the electrification reconstruction project of Jining-Tongliao Railway as the background,the simulation calculation is carried out to verify the effectiveness of the scheme.(4)Taking the electrified railway project as an example,the economic analysis is carried out and the payback period of investment is given.(5)The research content of this article can provide technical reference for the application of electrified railway through phase power supply system.

关 键 词：贯通式同相供电 电气化铁道 PWM控制 电分相 

分 类 号：U224.1[交通运输工程—道路与铁道工程]