磁浮线路接触轨防冰冻灾害研究  

Study on Anti-freezing Disaster for Conductor Rail of Maglev Line

作　　者：涂振华 欧阳虹 邹同友 郭乐洋 TU Zhenhua;OUYANG Hong;ZOU Tongyou;GUO Leyang

机构地区：[1]湖南磁浮交通发展股份有限公司

出　　处：《电气化铁道》2021年第5期86-90,共5页Electric Railway

基　　金：湖南省科技重大专项“160km/h快速磁浮列车研制与示范”之子项目五“160km/h快速磁浮交通受流系统融冰除冰技术研究”(2018GK1010-5)。

摘　　要：随着中低速磁浮交通线路建设在国内逐渐铺开,城市轨道交通制式已迈入磁浮时代。本文在深入研究国家电网、铁路接触网防冰与除冰技术的基础上,结合中速磁浮交通发展需要,根据长沙磁浮快线接触轨自身特点,以及长沙磁浮快线供电系统现有设备与供电条件等,提出接触轨直流融冰法和接触轨保线电流法,并进行理论计算及现场人为制冰和除冰模拟试验,结果表明:通过将线路上下行接触轨首尾串联,使供电系统与接触轨成为一种融冰电源发热装置,再使用既有供电系统整流装置向线路两端施加1500 V直流电压,利用导体本身的内阻消耗电能产生热能,可以使接触轨表面的冰层溶解,达到线路除冰或防止结冰的效果。Along with the construction of medium and low speed maglev lines progressively in China,the urban rail transit system has entered the maglev era.Based on the profound study of anti-icing and de-icing technology of the State Grid and railway catenary,combined with the requirements of development of medium speed maglev transportation,according to the characteristics of conductor rail of Changsha maglev express line,as well as the existing equipment and power supply conditions of power supply system of Changsha maglev express line,the paper puts forward the DC ice melting method and the current protection method of conductor rail,theorical calculation and field artificial ice making and de-icing simulation test are carried out.The results show that the power supply system and the conductor rail become an ice melting power heating device by connecting the head and tail of the up and down conductor rails of the line in series,then applying 1500 V DC voltage to both ends of the line by using the rectifier device of the existing power supply system,and using the internal resistance of the conductor to consume electric energy to generate heat energy,the ice layer on the surface of the conductor rail can be dissolved to achieve the effect of line de-icing or preventing icing.

关 键 词：磁浮 接触轨 除冰 直流融冰 保线电流 

分 类 号：U237[交通运输工程—道路与铁道工程]