北京交通大学学报2016，Vol.40Issue(4)：75-81,7.DOI:10.11860/j.issn.1673-0291.2016.04.012
基于车-地关联分析的轨道电路失去分路验证方法
Verification technique based on train-ground correlation analysis for false unoccupancy of track circuit
摘要
Abstract
The principal function of track circuit is to check occupancy or clearing of the tracks, therefore the operation safety may be threatened once the false unoccupancy happens.At first, this paper briefly analyzes and rules out the following possible factors based on the field case and related data,i.e.harmonics of traction current and bypass signal current,which may cause the rise of residual voltage of track circuit.Then,using a detailed simulation model of track circuit under shunting state of the multi-axle locomotive,both cab signaling voltage and receiver voltage are calculated.It is validated that the cab signal voltage will decline while the receiver voltage of track circuit may remarkably increase by comparison with recorded data,so the conclusion can be drawn that the bad shunting leads to false unoccupancy.Finally,according to their quantitative interdependency,transfer coefficients are introduced so that a novel method can be applied in comprehensive diagnosis on shunting state of track circuit.关键词
轨道电路/机车信号/失去分路/残压/转移系数/谐波干扰Key words
track circuit/cab signaling/false unoccupancy/residual voltage/transfer coefficients/harmonic interference分类
交通工程引用本文复制引用
杨世武,马沧海,赵明,唐乾坤..基于车-地关联分析的轨道电路失去分路验证方法[J].北京交通大学学报,2016,40(4):75-81,7.基金项目
中国铁路总公司科技研究开发计划项目资助(2014X008-I) （2014X008-I）
2016年中国铁路总公司标准项目“铁路信号设备牵引电流抗扰度试验方法及其限值第1部分轨道电路” （）
北京全路通信信号研究设计院集团有限公司委托项目资助(15KY-F-035) （15KY-F-035）
