基于DDRTS的直流牵引供电系统短路模型研究  

Study on Short-circuit Model of DC Traction Power Supply System Based on DDRTS

作　　者：蔡思宇 CAI Siyu

机构地区：[1]中国铁路设计集团有限公司

出　　处：《电气化铁道》2022年第6期81-85,共5页Electric Railway

基　　金：中国铁路设计集团有限公司重点课题“牵引供电系统接地与电磁兼容工程优化技术研究”(2021A240807)。

摘　　要：根据三绕组变压器模型与分裂式变压器模型之间的电气关系建立整流机组的等效电路模型,根据多导体系统的分布特征建立牵引网等效电路,并对直流供电系统中各部分电路的电气参数进行计算,在此基础上利用DDRTS软件建立实际工程中的系统短路模型,最后根据实测数据与仿真数据的对比验证模型的准确性,对直流牵引供电系统的研究、故障分析以及保护整定具有实际意义。In accordance with the electrical relationship between the three winding transformer model and the split transformer model,the equivalent circuit model of the rectifier unit is established,the equivalent circuit of the traction network is established according to the distribution characteristics of the multi conductor system,and the electrical parameters of each part of the circuit in the DC power supply system are calculated.On this basis,the system short-circuit model in practical engineering is established by use of DDRTS software,and the accuracy of the model is verified by comparison of the measured data with the simulation data.It has practical significance for the research,fault analysis and protection setting of DC traction power supply system.

关 键 词：分裂式变压器 整流机组 牵引网 电气参数 短路模型 

分 类 号：U231.8[交通运输工程—道路与铁道工程]