高速接触网静/动态几何参数及误差特性  

Static/dynamic geometric parameters and error characteristics of high-speed overhead catenary

作　　者：占栋[1] 高仕斌[1] 游诚曦 于龙[1] Zhan Dong;Gao Shibin;You Chengxi;Yu Long(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学电气工程学院,成都611756

出　　处：《仪器仪表学报》2024年第8期1-20,共20页Chinese Journal of Scientific Instrument

基　　金：国家重点研发计划专项(2023YFB4302002);国家自然科学基金(52372401);四川省自然科学基金(2023NSFSC0487)项目资助。

摘　　要：接触网几何状态是决定高铁供电安全与弓网受流质量的关键因素。根据接触网静/动态属性,明确接触网静/动态几何参数与静/动态检测涵义。针对接触网动态检测时车辆姿态变化、轨面弹性变形、接触线动态抬升与环境扰动问题,开展动力激扰下接触网几何动态检测复合误差形成机理与补偿方法研究。通过轨道、车辆、接触网系统动力耦合及环境扰动作用下复合误差分解、溯源与辨识,分析车辆姿态误差特性及其表征模型,结合轨面弹性变形、接触线动态抬升、风载动态响应,阐述轮轨、弓网、风场多重耦合下接触网几何动态检测误差补偿方法。旨在揭示动力激扰作用下接触网几何动态检测误差产生、传播、复合与演变过程,形成面向高速接触网几何动态检测的复合误差控制基础理论方法,为提高我国接触网检测水平和保障接触网高品质维修起到科学有效的促进作用。The geometric state of the catenary is a crucial factor in ensuring the safety of traction power supply and the quality of current collection in high-speed railway systems.Understanding the fundamental characteristics of static and dynamic geometric parameters within the catenary system is vital for accurately interpreting them in both static and dynamic detection contexts.However,dynamic detection poses challenges due to factors such as vehicle posture changes,elastic deformation of the track surface,dynamic lifting of the contact wire,and environmental disturbances.Research efforts are concentrated on understanding the mechanisms behind hybrid error formation and developing compensation methods for detecting catenary geometry under dynamic conditions.This involves breaking down,tracking,and identifying hybrid errors within the complex interactions between the track,vehicle,and catenary,as well as environmental influences.The study examines the characteristics of vehicle posture errors and their representation models,taking into account the elastic deformation of the track surface,the dynamic lifting of the contact wire,and wind-induced responses.It further elaborates on compensation techniques for dynamic geometric errors in the catenary system,considering the combined effects of wheel-rail interaction,pantograph dynamics,and wind field forces.The goal is to uncover the processes of error generation,propagation,compound formation,and evolution during dynamic geometric detection of the catenary system under dynamic conditions.This research provides a theoretical foundation for controlling composite errors in dynamic geometric detection of high-speed catenary systems,aiming to scientifically and effectively improve China′s catenary system detection capabilities and ensure the high-quality maintenance of the system.

关 键 词：高速铁路 接触网 几何参数 动态响应 动态误差 

分 类 号：TH873.7[机械工程—仪器科学与技术] U226.5[机械工程—精密仪器及机械]