基于CDEGS的交流电气化铁路对沿线油气管道电磁干扰影响研究

Study on influence of AC electrified railway on electromagnetic interference of oil and gas pipelines along the line based on CDEGS

由于地理条件与成本限制,电气化铁路与油、气管道往往敷设在同一公共传输走廊上,造成一定范围内的平行接近或交叉穿越等情况。而交流电气化铁路在正常运行时会对邻近金属油气管道产生交流干扰,严重威胁管道的运输与运营安全。目前交流电气化铁路对油气管道的电磁干扰影响的计算方法已不能满足准确评估影响程度的要求。利用实测数据,基于CDEGS平台建立电气化铁路对油气管道电磁干扰仿真模型,研究电气化铁路对邻近油气管道影响规律,并提出经济有效的防护措施,对减小交流干扰影响、保证金属油气管道的安全运行有着工程指导价值。

Due to the geographical conditions and cost constraints,most of the electrified railways and oil and gas pipelines are laid in the same public transmission corridor to choose the similar transmission corridor,and they have to cross or parallel in a certain range.In normal operation,the AC electrified railway will cause AC interference to the adjacent metal oil and gas pipelines,which will seriously threaten the transportation and operation safety of the pipelines.The metal oil and gas pipeline will inevitably be affected by the AC electromagnetic interference of the electrified railway.At present,the calculation method of the influence of AC electrified railway on the electromagnetic interference of oil and gas pipelines can not meet the requirements of accurately evaluating the influence of metal oil and gas pipelines on the electromagnetic interference of AC electrified railway.In this paper,the electromagnetic interference simulation model of electrified railway to oil and gas pipeline was established based on the platform of CDEGS by using the measured data.The influence rule of electrified railway to the adjacent oil and gas pipeline was studied,and the economic and effective protective measures were proposed,which have engineering reference for reducing the impact of electrified railway on the AC interference and ensuring the safe operation of metal oil and gas pipeline Guide value.