摘要
以直流牵引供电系统的多层轨地回流分布式结构为基础,分别推导正常情况和发生绝缘损坏时钢轨电位和杂散电流等的数值分布,并在此基础上分析地铁轨道回流的分布规律,总结出包含多种工况下的杂散电流统一分布公式及其简化形式,进而推导出适用于直流牵引计算的轨道回流简化模型。
Based on the multiple and distributed track-to-field structure of subway DC power supply system, the numerical formula of rail potential and stray current under both normal and insulation damaging conditions are inferred respectively, on this basis the distribution regularities of subway returned current is analyzed, and then an unified formula and its simplified pattern containing complex working conditions of stray current are drawn, and further the simplified returned current model for DC power traction calculation is derived.
出处
《公路》
北大核心
2017年第5期281-285,共5页
Highway
关键词
直流供电
杂散电流
钢轨电位
绝缘损坏
DC power supply
stray current
rail potential
insulation damage
