高速受电弓-接触网动态受流性能及双弓距离的研究  

Study on Current-collection of High-speed Pantograph-catenary System and Distance between Two Pantographs

作　　者：吴燕[1] 吴俊勇[1] 郑积浩[1] 宋洪磊[1] 郑琼林[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《铁道学报》2010年第4期38-43,共6页Journal of the China Railway Society

基　　金：国家自然科学基金资助项目(60674005);铁道部科技研究开发计划(2006J023-D);北京交通大学科技基金项目(E07J0060)

摘　　要：高速列车运行的关键技术之一是弓网动态受流问题。当动车双弓运行时,弓网动态受流性能限制了高速列车运行速度。本文采用无限长弦模型,将受电弓看作集中质量模型,对弓网系统动态受流性能进行分析,推导并计算其解析解,对接触网-受电弓的动态相互作用进行研究;通过计算运行速度为200 km/h的俄罗斯高速接触网的弓网参数来验证该方法的正确性;对我国高速铁路受电弓-接触网系统的动态受流性能进行分析,得到接触线的弛度、悬挂刚度和波动分量以及机车车辆振动对受电弓滑板及接触线垂向位移的影响情况;对动车双弓运行工况下双弓的最佳距离进行分析,并研究受电弓归算质量对弓网受流的影响。研究结果为进一步优化受电弓参数提供了参考。Dynamic current collection of the pantograph-catenary system turns out to be one of the key technologies for high-speed railways.Speed limitations have to be accepted when an electric multiple unit（EMU） runs with two pantographs.In this paper,the analytical solution to dynamic current collection of the pantograph-catenary system is calculated and the dynamic pantograph-catenary interaction is analysized,where the infinite string model is used for the catenary system and the lumped mass model for the pantographs.The catenary sag,suspension stiffness and propagation and the influence of carbody vibration on the vertical displacement of contact wires and pantograph slippers are obtained for high-speed railways in our country.The pantograph-catenary parameters for the high-speed railways at a running speed of 200 km/h in Russia are calculated to verify the correctness of the approach.The optimal distance between two pantographs and the influence of the reduction mass of the pantograph on current collection of the pantograph-catenary system are studied.The study provides theoretical reference for optimization of pantograph parameters.

关 键 词：接触网 受电弓 受流性能 弓网动态作用 双弓 

分 类 号：U225[交通运输工程—道路与铁道工程]