Simulation on adjacent line mutual interference of high-speed railway track circuit

As the density of high-speed railway network continues to increase, problem electromagnetic interference on adjacent lines has become increasingly prominent. This paper focuses caused by rail and line in signal transmission process track circuit. Firstly, complete establishment four-terminal model ZPW-2000A circuit system cab entry current crosstalk model, calculation voltage under different parallel length frequency. Then factors coupling mechanism are analysed realize amount. Finally, according sensitivity index signal, maximum sections is given respect, protection suggestions put forward. The research work this provides a theoretical basis for suppressing guarantees safe efficient operation trains.