摘要
随着列车速度的不断提升,受电弓滑板磨耗增加,对弓网系统运行的安全性和经济性造成威胁。目前,铁路部门仍采用传统人工登顶方法检测滑板磨损情况,效率低、安全性差、且干扰正常行车。因此,亟需探索简便、高效的滑板磨损量预测方法,以指导受电弓滑板的检修与更换。通过改变电流、温度参数进行多组试验发现,在低电流工况下,滑板磨损量随温度提升逐渐下降,在高电流工况下,滑板磨损量随温度提升先减小后增加;基于偏最小二乘回归法,建立了考虑温度作用的浸金属碳滑板磨损量预测模型,模型检测相对误差小于6%;选取不同材料滑板时,磨损量对各影响因素变化的敏感程度存在显著差异。研究结果对完善受电弓滑板磨损量预测模型,降低铁路运营维修成本,提高列车弓网系统运行稳定性具有一定指导意义。
With the continuous increase of train speed,the strip wear increases,which poses a threat to the safety and economy of pantograph-catenary system.At present,the railway department still uses the traditional manual climbing method to inspect the strip wear,which is inefficient,unsafe and interferes with normal traffic.Therefore,it is urgent to explore a simple and efficient method for predicting the strip wear amount to guide the maintenance and replacement of the strip.By changing the current and temperature parameters,the strip wear amount decreases with the increase of temperature under low-current condition;while,the strip wear amount first decreases and then increases with the increase of temperature under high-current condition.A wear prediction model of the metal-impregnated carbon strip considering the temperature effect is established based on the PLSR and the relative error of the model detection is less than 6%.It is concluded that the sensitivity of wear amount to the change of influencing factors is significantly different for strips of different materials.The results are of great significance to improve the wear prediction model of strip,reduce the cost of railway operation and maintenance,and improve the stability of the pantograph-catenary system.
作者
谢宝志
何志江
邓磊
殷成凤
倪子然
林光华
杨泽锋
XIE Baozhi;HE Zhijiang;DENG Lei;YIN Chengfeng;NI Ziran;LIN Guanghua;YANG Zefeng(Telecom Electrification Engineering Co.,Ltd.,China Railway Erju Group Corporation,Chengdu 610031,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China;Southwest Electric Power Design Institute Co.,Ltd.of CPECC,Chengdu 610021,China)
出处
《铁道标准设计》
北大核心
2022年第10期179-184,共6页
Railway Standard Design
基金
国家自然科学基金青年科学基金项目(51807167)。
作者简介
谢宝志(1973-),男,高级工程师,1998年毕业于华东交通大学电气技术专业,工学学士,主要从事轨道交通电气化研究工作,E-mail:479876794@qq.com;通信作者:杨泽锋(1989-),男,讲师,工学博士,主要从事弓网滑动电接触研究工作,E-mail:yangzefeng@foxmail.com。
