| 地铁隧道内电磁场分布特性分析 |
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| 引用本文： | 王奎鹃,李夏青,闫明富.地铁隧道内电磁场分布特性分析[J].北京石油化工学院学报,2012,20(3):7-12. |
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| 作者姓名： | 王奎鹃 李夏青 闫明富 |
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| 作者单位： | 北京化工大学信息科学与技术学院,北京,100029;北京石油化工学院信息工程系,北京,102617 |
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| 摘 要： | 准确掌握地铁隧道内电磁场的分布状况是建立直流牵引供电系统电磁暂态模型的基础,也是开发直流牵引供电系统馈线保护方法的需要.针对地铁隧道内非对称的空间结构,利用有限元分析法计算了不同工况下地铁隧道内的电磁场分布特性,确定了地铁隧道内电磁场与钢轨电位、钢轨电流间的定量关系,以及列车位置对电磁场分布的影响.分析结果符合电磁场分布理论表述的规律.
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| 关 键 词： | 电磁场分布 地铁隧道 有限元法 牵引供电 |
The Analysis of the Characteristics of the Electric and Magnetic Field Distribution in the Subway Tunnel |
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| Wang Kuijuan
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Li Xiaqing
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Yan Mingfu.The Analysis of the Characteristics of the Electric and Magnetic Field Distribution in the Subway Tunnel[J].Journal of Beijing Institute of Petro-Chemical Technology,2012,20(3):7-12. |
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| Authors: | Wang Kuijuan Li Xiaqing Yan Mingfu |
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| Affiliation: | Wang Kuijuan Li Xiaqing Yan Mingfu (1. College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China ; 2. College of Information Engineering, Beijing Institute of Petro-chemical Technology, Beijing 102617, China) |
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| Abstract: | Accurately grasping the electric and magnetic field distribution in the subway tunnel is not only the foundation of establishing the electromagnetic transient model of the DC traction power supply system, but also the need to develop the feeder protection of the DC traction power supply system. Based on the asymmetric spatial structure of the subway tunnel, the characteristics of the electric and magnetic field distribution in the subway tunnel under different working conditions are calculated and analyzed by using the finite element analysis. At the same time, the electric and magnetic field distribution in the subway tunnel and their quantitative rela- tionships with rail potential, rail current and train position are determined. The analysis results are consistent with the law described by the electric and magnetic theory. |
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| Keywords: | electric and magnetic field distribution subway tunnel finite element algorithm traction power supply |
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