城市轨道交通车速160 km/h刚性接触网施工误差仿真研究  

Research on Construction Error Simulation of Rigid Catenary for 160 km/h Urban Rail Transit

作　　者：乔锦新 关金发[2] 程军营 罗成 冯帆 QIAO Jinxin;GUAN Jinfa;CHENG Junying;LUO Cheng;FENG Fan(China Railway First Survey and Design Institute Group Co.,Ltd.710075,Xi’an,China;School of Electrical Engineering,Southwest Jiaotong University,610031,Chengdu,China)

机构地区：[1]中铁第一勘测设计院集团有限公司,西安710075 [2]西南交通大学电气工程学院,成都610031

出　　处：《城市轨道交通研究》2024年第6期191-195,共5页Urban Mass Transit

摘　　要：[目的]针对我国城市轨道交通车速160 km/h刚性接触网施工误差对弓网动态性能的影响,基于现场实测数据,结合刚性接触网弓网系统仿真分析,对车速160 km/h受电弓与刚性接触网系统设计出满足条件的技术参数。[方法]首先,对广州地铁三北线进行供电接触网导高(接触线至轨面的垂直距离)参数实测,对导高的概率分布规律进行了分析,认为导高分布与定位点静态高度分布基本一致,均服从正态分布;然后,在考虑导高施工误差的情况下,选取DSA250型受电弓,根据TB/T3271标准建立了弓网动态仿真模型;最后,仿真分析了不同导高施工误差下的弓网动态性能,并设计了满足车速160 km/h的弓网系统技术参数。[结果及结论]刚性悬挂装置导高的施工误差服从正态分布的概率分布模型;导高存在施工误差的接触力标准差是无施工误差的2~3倍,说明导高施工误差对弓网动态耦合性能的影响显著;对刚性悬挂导高的施工误差,锚段关节处6个定位点高度服从均值为接触线标称高度、标准差为2 mm的正态分布,其他定位点高度服从均值为接触线标称高度、标准差为3 mm的正态分布。[Objective]As construction error of the rigid catenary at 160km/h train speed affects the dynamic performance of the pantograph catenary,the technical parameters that meet the condition for the pantograph and rigid catenary system at160 km/h are designed based on the on-site measurement data and the simulation analysis of rigid pantograph catenary system.[Method]Firstly,the guiding height(vertical distance from catenary to rail surface)parameters of Guangzhou Metro Sanbei Line are measured,and the probability distribution of guiding height is analyzed.It is concluded that the guiding height distribution is basically consistent with the static height distribution of the fixed points,both following the normal distribution.Then,in consideration of the construction error of the guiding height,the DSA250 pantograph is selected and the dynamic simulation model of the pantograph is established according to TB/T 3271.Finally,the dynamic performance of the pantograph catenary under different construction errors is simulated and analyzed,and the technical parameters of the pantograph catenary system meeting 160 km/h requirements are designed.[Result&Conclusion]The construction error of rigid suspension device guiding height follows the probability distribution model of normal distribution.The standard deviation of the contact force with construction error is 2 to 3 times that without construction error,indicating that the construction error of the guiding height has significant influence on the dynamic coupling performance of the pantograph catenary.For the construction error of rigid suspension device guiding height,the height of 6 fixed points at the anchor segment joints strictly follows the normal distribution with the mean being the nominal height of the overhead line and the standard deviation being 2 mm,and the height of other fixed points strictly follows the normal distribution with the mean being the nominal height of the overhead line and the standard deviation being3 mm.

关 键 词：城市轨道交通 刚性接触网 施工误差 仿真分析 导高 接触力 

分 类 号：U225.1[交通运输工程—道路与铁道工程]