地铁信号系统计轴设备受扰分析与解决方案  

Analysis and Solution Schemes for Interference on Metro Signaling System Axle Counting Equipment

作　　者：杨荣兵 梁建彬 谭冠华 汪峥[2] YANG Rongbing;LIANG Jianbin;TAN Guanhua;WANG Zheng(Chengdu Metro Operation Co.,Ltd.,610081,Chengdu,China;China Railway Eryuan Engineering Group Co.,Ltd.,610036,Chengdu,China)

机构地区：[1]成都地铁运营有限公司,成都610081 [2]中铁二院工程集团有限责任公司,成都610036

出　　处：《城市轨道交通研究》2024年第2期107-111,116,共6页Urban Mass Transit

摘　　要：[目的]在成都地铁18号线的系统调试、动车调试及试运行过程中,不同场景下,计轴设备均出现了受扰异常占用的情况,严重影响地铁运营安全,因此有必要对各种异常受扰场景进行分析和测试试验,选择合适的改进方案解决计轴设备受扰异常占用问题。[方法]介绍了车辆段运用库计轴区段异常受扰占用情况,列车通过分相区时的计轴区段异常受扰占用情况,接触网停送电时的计轴区段异常受扰占用情况;分析各计轴设备受扰异常占用场景,并进行相关调查测试及其验证,最后提出不同受扰场景下的解决方案。[结果及结论]对于车辆段运用库计轴区段异常受扰占用场景,可采用在车辆段库前库内侧、库中A股道侧、库中B股道侧增加均流线,同时使用新型放大板的方案解决该问题。对于列车通过分相区时的计轴区段异常受扰占用场景,可采用隔离干扰方案和消除干扰或减弱干扰强度方案解决该问题。对于接触网停送电时的计轴区段异常受扰占用场景,可采用优化系统接地方案解决该问题,将弱电扁钢与牵引回流通路(钢轨)的连接断开,同时将弱电扁钢与车站地网相连,将计轴通道防雷模块参数进行适应性优化。[Objective]During the system commissioning,train debugging and trial operation on Chengdu Metro Line 18,the axle counting equipment exhibits AIO(abnormal interference and occupation)due to various disturbances in different scenarios,significantly affecting metro operation safety.Therefore,it is necessary to analyze and conduct tests and experiments on various abnormal disturbance scenarios to select appropriate improvement schemes for resolving the issue of AIO in axle counting equipment.[Method]The AIO situations in the axle counting sections of the vehicle depot,in the axle counting section when train passes through phase division zones,and in the axle counting section during catenary power-off are introduced.Various scenarios of AIO in the axle counting equipment are analyzed,and relevant investigations,tests,and verifications are performed.Finally,solution schemes for different disturbance scenarios are proposed.[Result&Conclusion]For the AIO scenario in the axle counting section of the vehicle depot,the scheme of adding equalizing lines on the inner side of the front garage,and on track A and track B sides in the depot,along with the use of a new amplification board,can solve the problem.For the scenario of AIO in the axle counting section when train passes through phase division zones,the schemes of isolating interference,eliminating or weakening interference intensity can be implemented for the problem.For the scenario of AIO in the axle counting section during catenary power-off,the scheme of optimizing system grounding can solve the problem,where the weak flat steel is disconnected from the traction return path(rail),and then connected to station grounding grid,along with adaptive optimization of the parameters for the axle counting channel lightning protection module.

关 键 词：地铁 信号系统 计轴设备 

分 类 号：U284.47[交通运输工程—交通信息工程及控制]