不同行车间隔下接触网导线温升特性仿真研究
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摘要
为在缩短行车间隔时减小弓网系统磨损,对接触网导线温度场进行研究。利用软件COMSOL Multiphysics建立仿真模型,结合温度场实验结果验证了有效性。在不同行车间隔下对货、客运列车接触线温度场进行仿真计算。行车间隔越小,温度值越高且平衡越快。货运列车长期运行的行车间隔不能小于180 s,客运列车运营时速下不能小于160 s,试验时速下不能小于140 s。行车间隔一定时,速度越大温度值越低,电流越大温度值越高。稳定运行后,间隔内温度差值在不同速度下相似,而不同电流下变化较大。
To reduce the wear of pantograph and catenary system while decreasing the headway, the temperature field of the contact wire is studied. A simulation model is established by using the COMSOL Multiphysics software. The effectiveness of the model is verified with temperature experiments. Temperature field of the contact wire of freight locomotive and passenger locomotive in different intervals is studied by simulation. The smaller the headway of trains, the higher the temperature value, and the shorter the balance process. Under the constraint of temperature field, the headway of freight locomotive couldn't be less than 180 s under long term operation. The interval of passenger locomotive couldn't less than 160 s under operating speed and 140 s under experiment speed. When the headway of trains is constant, the steady state temperature is lower at larger speeds. While steady state temperature is higher in larger currents. The temperature difference in one interval is similar under different speeds and large in different currents in stable operation stage.
To reduce the wear of pantograph and catenary system while decreasing the headway, the temperature field of the contact wire is studied. A simulation model is established by using the COMSOL Multiphysics software. The effectiveness of the model is verified with temperature experiments. Temperature field of the contact wire of freight locomotive and passenger locomotive in different intervals is studied by simulation. The smaller the headway of trains, the higher the temperature value, and the shorter the balance process. Under the constraint of temperature field, the headway of freight locomotive couldn't be less than 180 s under long term operation. The interval of passenger locomotive couldn't less than 160 s under operating speed and 140 s under experiment speed. When the headway of trains is constant, the steady state temperature is lower at larger speeds. While steady state temperature is higher in larger currents. The temperature difference in one interval is similar under different speeds and large in different currents in stable operation stage.
引文
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[3]Argibay N,Sawyer W G.Low wear metal sliding electrical contacts at high current density[J].Wear(S0043-1648),2012,274-275(3):229-237.
[4]Ding T,Chen G X,Bu J,et al.Effect of temperature and arc discharge on friction and wear behaviours of carbon strip/copper contact wire in pantograph-catenary systems[J].Wear(S0043-1648),2011,271(9):1629-1636.
[5]王英,刘志刚,母秀清,等.受电弓双滑板下的弓网电接触稳态热流分析与验证[J].铁道学报,2015,37(5):27-33.Wang Ying,Liu Zhigang,Mu Xiuqing,et al.Thermal Steady-state Analysis and validation with double slide electric contacts in pantograph-catenary system[J].Journal of the China Railway Society,2015,37(5):27-33.
[6]张玉燕,李海龙,王振春,等.大载流高速滑动电接触表面瞬态温度分析[J].中国科学:技术科学,2015,45(8):834-842.Zhang Yuyan,Li Hailong,Wang Zhenchun,et al.Analysis of surface transient temperature on large current carrying high-speed sliding electrical contact[J].Scientia Sinica Technologica,2015,45(8):834-842.
[7]刘涛,徐瑞华.基于行车间隔协调调整的换乘站大客流处置[J].城市轨道交通研究,2014,17(2):50-53.Liu Tao,Xu Ruihua.Disposal of Large Passenger Flow at Transfer Station Based on Coordinated Headways Adjustment[J].Urban Mass Transit,2014,17(2):50-53.
[8]韩春明,赵琦,常山,等.四显示自动闭塞区段影响追踪列车间隔的固定设备因素分析[J].铁道运输与经济,2016,38(2):25-30.Han Chunming,Zhao Qi,Chang Shan,et al.Analysis on Fixed Equipment Factors Influencing Headway of Trains in Four-aspect Automatic Block Section[J].RAILWAY TRANSPORT AND ECONOMY,2016,38(2):25-30.
[9]徐育锋,范炳全,何胜学,等.单轨道交通线路行车间隔优化模型研究[J].交通与运输(学术版),2010,1(2):104-107.Xu Yufeng,Fan Bingquan,He Shengxue,et al.Study on Headway of Optimization Model of a Single-rail Transit Line[J].Traffic&Transportation,2010,1(2):104-107.
[10]郭凤仪,张艳立,王智勇,等.弓网电弧实验系统与辐射噪声实验研究[J].电工电能新技术,2015,34(12):49-53.Guo Fengyi,Zhang Yanli,Wang Zhiyong,et al.Design of pantograph arc experiment system and study on radiated noise[J].Advanced Technology of Electrical Engineering and Energy,2015,34(12):49-53.
[11]杨阳,何强,秦大同,等.基于COMSOL的限矩离合器摩擦片温度场分析[J].电子设计工程,2013,21(15):121-125.Yang Yang,He Qiang,Qin Datong,et al.Analysis on Transient Temperature Field of ISG Motor in Hybrid Electric Vehicle Based on COMSOL[J].China Journal of Highway and Transport,2013,21(15):121-125.
[12]陈忠华,康立乾,李本君,等.弓网系统受流摩擦下滑板温度分析与计算[J].高压电器,2012,48(5):1-5.Chen Zhonghua,Kang Liqian,Li Benjun,et al.Analysis and Calculation on the Slide Plate’s Temperature of the Pantograph and Catenary System under Currentreceving Condition[J].High Voltage Apparatus,2012,48(5):1-5.
[13]田兴春,董霖,徐伟,等.焦耳热对搅拌摩擦焊耦合温度场的影响[J].润滑与密封,2014,39(8):68-72.Tian Xingchun,Dong Lin,Xu Wei,et al.The Effect of Joule-Heat on Coupling Temperature Field of Friction Stir Welding[J].Lubrication Engineering,2014,39(8):68-72.