基于实测数据的直流地铁时变负荷特性分析  

Analysis of Time-varying Load Characteristics of DC Subway Based on Actual Measured Data

作　　者：刘若飞 黄文勋[1] 丁大鹏[1] 曲尚开[1] 梁宗佑 LIU Ruofei;HUANG Wenxun;DING Dapeng;QU Shangkai;LIANG Zongyou(China Railway First Survey and Design Institute Group Ltd.,Xi′an 710043,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610072,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043 [2]西南交通大学电气工程学院,四川成都610072

出　　处：《电工技术》2023年第13期96-98,102,共4页Electric Engineering

基　　金：西安地铁新型储能节能技术与产品应用研究(编号2021KY29ZD(LSJT)-02PT)。

摘　　要：随着我国城市化进程的不断推进,城市轨道交通飞速发展,截至2021年,全国已有45座城市开通直流地铁线路。牵引列车呈“源荷”二象性,因此牵引负荷区别于大工业电力负荷,其具有较强的冲击性和波动性。既有研究聚焦于牵引负荷对电网的影响,鲜有针对地铁直流时变负荷特性的研究。因此,选取国内某典型直流地铁线路,在其牵引变电所加装测试设备,长时间连续测量电压、电流等相关电气量。然后,基于实测数据,以日负荷曲线为研究对象,对日负荷电流、电压、功率等进行分析,统计日负荷最大值、平均值和最大需量值等,并计算了牵引负荷的冲击性和波动性大小。With the continuous advancement of China′s urbanization process,urban rail transit has developed rapidly.By 2021,45 cities across the country have opened DC subway lines.Traction trains have the duality of"source and load".Therefore,the traction load is different from the large industrial power load,which has strong impact and fluctuation.Existing research focuses on the influence of traction load on the power grid,and there are few studies on the time-varying load characteristics of subway DC.Therefore,this paper selects a typical domestic DC subway line,and installs test equipment in its traction substation to continuously measure voltage,current and other related electrical quantities for a long time.Then,based on the measured data,taking the daily load curve as the research object,the daily load current,voltage,power,etc.are analyzed,the maximum daily load value,average value and maximum demand value are counted,and the impact and volatility magnitude of the traction load are calculated.

关 键 词：城市轨道交通 牵引负荷 负荷特性 

分 类 号：TM714[电气工程—电力系统及自动化]