Research of DC Stray Current in Coal Mine Underground
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摘要: 杂散电流所造成的电机车钢轨及其附近的埋地管线的腐蚀、人身触电和对通信系统的干扰等问题日益凸显出来。文章通过建立电机车简单的单边供电模型,在合理的假设前提下推导出了杂散电流的计算公式,并应用Matlab仿真软件对推导出的公式进行仿真分析。仿真分析结果表明:在单边供电的区间内,随着距电机车距离的增大,杂散电流先增大后减小,在供电区间的中点达到最大;过渡电阻和轨道纵向电阻率对杂散电流泄漏影响很大;供电距离和供电电流对杂散电流的影响次之。Abstract: The problems such as corrosion of steel rail and the buried metal pipe,and electric shock,interference to communication systems caused by stray current have become prominent increasingly.Through establishing unilateral power supply model of electric locomotive,the paper deducted the mathematical formula for stray current under reasonable suppositions,simulated the formula by using the simulation software Matlab.The simulation result showed that in unilateral power supply range,stray current increased at first and then decreased with increasing the distance to electric locomotive,and it come to maximum at the mid-point of power supply range,the transition resistance and track longitudinal resistivity have great affection to the stray current,the distance and the current of power supply have secondary affection to the stray current.
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Keywords:
- coal mine /
- electric locomotive /
- unilateral power supply /
- stray current /
- simulation /
- Matlab
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期刊类型引用(3)
1. 马宏伟，薛旭升，毛清华，齐爱玲，王鹏，聂珍，张旭辉，曹现刚，赵英杰，郭逸风. 论“采煤就是采数据”的学术思想. 煤炭科学技术. 2025(01): 272-283 . 
百度学术
2. 李文宇. 5G矿用电机车无人驾驶系统研究. 机械管理开发. 2022(05): 153-155 . 百度学术
3. 贺海涛，廖志伟，郭卫. 煤矿井下无轨胶轮车无人驾驶技术研究与探索. 煤炭科学技术. 2022(S1): 212-217 . 百度学术
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