环境风下高铁双弓-网系统动态受流特性研究  

Research on Dynamic Current Collection Characteristics of High-Speed Railway Double-Pantograph-Catenary System Under Environmental Wind

作　　者：陈小强[1] 张玺 王英 王心仪 CHEN Xiaoqiang;ZHANG Xi;WANG Ying;WANG Xinyi(School of Automation&Electrical Engineering,Lanzhou Jiaotong University Lanzhou,730070,China;CRRC Zhuzhou Electric Locomotive Research Institute Zhuzhou,412000,China;School of Electrical Engineering,Southwest Jiaotong University Chengdu,610031,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070 [2]中国中车株洲电力机车研究所有限公司,株洲412000 [3]西南交通大学电气工程学院,成都610031

出　　处：《振动．测试与诊断》2024年第2期320-329,411,412,共12页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(51767013,51867012);中国铁路兰州局集团有限公司科研资助项目(LTKY2021-076)。

摘　　要：为了研究环境风对高速铁路双弓-网系统动态受流性能的影响,首先,以位于我国西部大风区的兰新高铁为研究对象,基于模态分析法建立双弓-网耦合系统模型;其次,运用空气动力学理论推导作用于接触网线索上的环境风载荷;然后,考虑横风向空气阻尼的影响,探究空气阻尼作用下双弓受流特性;最后,采用4阶自回归(autoregression,简称AR)模型建立接触网沿线脉动风场,着重分析风速和风攻角对双弓受流的影响。结果表明:横风向空气阻尼对双弓受流产生的影响较小;脉动风下风速越大则风向越趋于垂向,双弓受流性能更易恶化;后弓受流性能相较前弓对风速和风攻角的变化更加敏感。双弓-网系统风振响应分析可为优化风环境下弓网受流质量和接触网防风参数设计提供参考。The influence of environmental wind load on the dynamic current collection performance(DCCP)is studied for high-speed railway double-pantograph-catenary system(DPCS).Firstly,the model of DPCS is established based on the modal analysis method,taking the Lanzhou-Urumqi high-speed railway located in the strong wind area of western China as the research object.Secondly,the aerodynamic theory is used for deducing the environmental wind load acting on catenary wires.Then,considering the influence of cross-wind air damping,the DCCP of double pantographs under the action of air damping is investigated.Finally,the fluctuating wind field along the catenary is established by using the fourth-order Autoregression(AR)model,of which the influence of wind speed and wind attack angle on the DCCP of double pantographs is analyzed.The results show that the cross-wind air damping has little effect on the current collection of double pantographs.Under the action of fluctuating wind,the greater wind speed and the more vertical wind direction lead to the worse DCCP of double pantographs.The DCCP of trailing pantograph(TP)is more sensitive to wind speed and wind attack angle than that of leading pantograph(LP).The wind vibration response analysis of DPCS can provide refer-ence for optimizing the pantograph-catenary current collection quality and the design of catenary wind protection parameters.

关 键 词：高速铁路 双弓-网系统 空气阻尼 脉动风 弓网受流 

分 类 号：TM922[电气工程—电力电子与电力传动]