摘要
目前已有的城市轨道交通直流牵引供电仿真模型未能较好地利用列车的实测数据。通过列车实际数据构建仿真模型,既能校验模型的准确性,又能还原列车实际过程中牵引供电系统的能量流动情况。本文基于MATLAB/Simulink构建了城轨车网仿真模型,从采集的列车实际运行数据出发,输入列车实际电流和位置,输出变电所和列车电压,从而还原牵引网的能量流动情况。同时,针对城轨牵引供电系统拓扑结构随列车移动时变的特点,采用列车模块占用的方法模拟列车的站间移动。最后,采用国内某条线路实际数据作算例分析,得到平均相对误差为1.93%,方差为0.13%,一定程度上验证了模型的准确性。
The existing DC traction power supply simulation model for urban rail transit does not make good use of the actual data of trains.By constructing the simulation model from actual train data,it can not only check the accuracy of the model,but also restore the energy flow of the traction power supply system during the actual train process.In this paper,the simulation model of urban rail network is constructed based on MATLAB/Simulink.From the actual train operation data collected,the actual train current and position are input,and the substation and train voltage are output,so as to restore the energy flow of the traction network.At the same time,for the characteristics that the topology of urban rail traction power supply system varies from time to time with train movement,the method of train module occupancy is used to simulate the inter-station movement of trains.Finally,the actual data of a domestic line is used for calculation analysis,and the average relative error is 1.93%and the variance is 0.13%,which verifies the accuracy of the model to a certain extent.
作者
王婷婷
毛润前
孙凯琦
陈晋衡
魏雄
WANG Tingting;MAO Runqian;SUN Kaiqi;CHEN Jinheng;WEI Xiong(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China;School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China)
出处
《智慧轨道交通》
2023年第4期53-58,共6页
SMART RAIL TRANSIT
关键词
城市轨道交通
牵引供电模型
能流还原
模块占用
算例检验
urban rail transit
traction power supply model
energy flow reduction
module occupation
case inspection
作者简介
第一作者:王婷婷(1991—),女,工程师。
