牵引供电系统对铁路信号系统的电磁干扰分析

Electromagnetic Interference Analysis of Traction Power Supply System to Railway Signal System

近年来,铁路信号系统在先进科学技术的支撑下逐步得到完善和提升,在保证列车在轨道上的行驶安全方面发挥着重大作用。铁路机车电力牵引是目前较为理想的一种牵引方式。但随着列车行业向高速、高密度与重载运输方向迈进步伐的加快,牵引供电系统对铁路信号系统的干扰也愈发明显,严重影响到铁路电磁信号的正常发射,进而影响整个铁路信号系统的有效运行。为降低铁路牵引供电系统对铁路信号系统的干扰,需分析牵引供电系统电磁干扰的入侵方式和途径,并采取有效措施进行防范和解决,为保证列车正常行驶创造有利条件。

In recent years,the railway signal system has been gradually improved and upgraded with the support of science and technology,which plays an important role in ensuring the safety of train running on the track.Electric traction of railway locomotives is an ideal way of traction at present.However,with the rapid development of high-speed,high-density and heavy-haul trains in China,the interference of traction power supply system to railway signal system is becoming more and more obvious,which often affects the normal transmission of railway electromagnetic signals,thus affecting the effective operation of the entire railway signal system. In order to reduce the interference of the railway traction power supply system to the railway signal system,it is necessary to find out the intrusion mode and approach of the electromagnetic interference signal system of the traction power supply system,and take effective measures to prevent and solve it,so as to create favorable conditions for ensuring the normal operation of the train.