特殊站场红灯断丝转移区段轨道电路编码

结合红灯转移、应答器设置、轨道电路编码和列车运行规则等情况,对采用CTCS-2级列控系统的特殊站场,红灯断丝转移区段轨道电路编码设计方案进行探讨。     

脉冲轨道电路脉冲源的研究与仿真

考虑脉冲轨道电路脉冲源脉冲周期1/3s对轨道电路的应变时间稍慢,而提出实现脉冲轨道电路脉冲源脉冲周期1/4s,并采用脉冲波形时间为40ms,恰为25Hz周期的脉冲源仿真,从而达到更好地兼容25Hz轨道电路设备。更好地实现既有25Hz轨道电路叠加电码化改造脉冲轨道电路叠加电码化。     

轨道电路空闲红光带原因及解决方法

轨道电路红光带是轨道电路常见故障之一,主要阐述轨道电路空闲红光带产生的几种主要原因,并提出减少轨道电路空闲红光带的解决办法.     

对称感应环线断线检测方法及装置

介绍了应用在FZL200型ATC系统的对称感应环线子系统的环线断线检测方法及装置,重点描述环线断线检测装置的结构和各模块的工作原理。     

城市轨道交通用超级电容器组等效电路模型研究

针对城市轨道交通的实际工况,从超级电容通用等效电路中简化出了可准确描述超级电容器组电压、电流、功率和储存能量等电气特性的带可变电容的一阶RC模型;利用试验测定的方式对超级电容器组进行了参数识别。对超级电容器组简化等效电路模型进行了频域分析,并结合城轨实际应用研究了超级电容器组的工作特性。仿真和试验结果验证了超级电容简化模型的精确性。     

城市轨道交通DA01型列车制动电子控制单元模拟量输出电路板AA的研制

制动电子控制单元(BECU)是城市轨道交通列车制动系统的核心部件.在分析上海轨道交通DA01型列车KBGM制动系统BECU电路板的基础上,针对BECU电路板老化等问题,提出替代和改进方案.采用光电隔离等关键技术,研制出BECU中模拟量输出电路板AA的替代电路板.经过性能试验测试,其效果与原进口电路板相吻合.     

宁波轨道交通1号线一期工程车辆辅助供电系统

文章介绍了宁波轨道交通1号线一期工程车辆的辅助供电系统,从列车的主电路、辅助供电输出回路及辅助供电系统的工作原理等几个方面进行分析和研究,对辅助供电系统的的性能进行了评价。     

DSZL系列直流电源的优化设计

信号设备的改进对信号电源提出电磁兼容的要求,因此满足特定的电磁兼容标准技术的引入成为必要。主要介绍DSZL系列信号直流电源为满足相关电磁兼容规定进行的优化改进措施。     

客运专线交流多机牵引道岔控制电路相关问题研究

通过对客运专线交流多机牵引道岔控制电路的分析,结合太中银新建铁路、秦沈列控改造工程、哈大客运专线等铁路项目现场开通及铁路运输需求,提出道岔控制电路存在的相关问题及建议方案.     

Research on the CTCS-4 Train Control System Based on Track Circuit Information FusionEI北大核心

Research purposes: CTCS-3 train control system is adopted in Chinese high-speed railway with speed of 300 km/h or higher. It is based on track circuit to check train occupancy and adopt quasi-moving block. In recent years, rapid development of national economy has put forward higher requirements for the capacity of high-speed railway. As a higher level train control system, CTCS-4 train control system can realize virtual block or moving block, and further shorten headway, but it is still in the stage of theoretical research. So this paper aims to analyze the characteristics of high-speed railway, and to propose a scheme for the implementation of CTCS-4 train control system based on track circuit fusion. Research conclusions:(1)When the wireless communication between vehicle and ground is interrupted, transport efficiency of CTCS-4 train control system can not meet the transport demand of high-speed railway.(2)CTCS-4 train control system should have the CTCS-2 backup function, which can make non-communication trains run normally and ensure the transport efficiency.(3)CTCS-4 train control system should integrate track circuit information, which can make RBC obtain position information of non-communication trains, improve the availability of the system and avoid complicated operational rules.(4)Due to complexity of high-speed railway and change of existing equipment, virtual block can be used in early stage of CTCS-4 train control system.(5)The research results can provide some references for CTCS-4 train control system in high-speed railway. © 2018, Editorial Department of Journal of Railway Engineering Society. All right reserved.