【摘要】 电气化铁路牵引供电系统供电臂或供电区段发生故障时,通过故障测距可以快速查找故障,以便及时排除故障,尽快恢复故障区段的正常运行。现有的故障测距研究主要针对上下行输电线路,无法适用于多股道站场。本文针对带回流线的直接供电方式下的多股道站场牵引网提出故障定位方案,对线路较为复杂的站场进行线路分组研究,定位故障股道,利用电流比值实现站场故障测距。通过Matlab/Simulink进行仿真验证,证明了方案的有效性。更多还原

【Abstract】 When the feeding section or power supply section of traction power supply system of electrified railway is faulty, the fault can be found by fault location so as to timely eliminate the fault and restore the normal operation of the faulty section. The studies of fault location mainly focus on the power transmission lines of upward and downward, it is not adaptive to multiple-track stations and yards. In view of the traction network with return circuit for multiple-track station and yard under direct power supply mode, the fault location scheme is put forward, researches are made for the grouped tracks of the station and yard where the tracks are complicated, the fault location of station and yard is realized by locating the faulty tracks and application of the current ratio. The effectiveness of the scheme has been verified by simulation through Matlab/Simulation.更多还原