As one of the most important electrified railway components, the pantograph-catenary (PC) system plays a key role in the energy transfer for the train through the sliding electric contact. However, the performance of the PC system is severely limited by pantograph arcing, and the study on the dynamic characteristics of pantograph arcing is still far away from satisfactory. In this article, a magnetohydrodynamic (MHD) model of pantograph arcing is first established, which focused on the impact of crosswind as well as the input current on the arcing dynamics. Once the model was validated by laboratory experiment, the influences of the crosswind and input current on the arc temperature and voltage are studied in detail. Two parameters, namely the diameter of the catenary and the gap distance between the pantograph strip and the catenary, were varied to see what effects that might have. An interesting periodic phenomenon for both the temperature and voltage fall has been found, which was explained based on the Karman vortex street of fluid theory.

中文翻译：

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侧风对受电弓起弧动力学的影响


受电弓接触网（PC）系统作为电气化铁路最重要的部件之一，通过滑动电接触为列车进行能量传递，发挥着关键作用。然而，PC系统的性能受到受电弓飞弧的严重限制，并且对受电弓飞弧动态特性的研究还远远不够令人满意。在本文中，首先建立了受电弓电弧的磁流体动力学（MHD）模型，该模型重点关注侧风以及输入电流对电弧动力学的影响。通过实验室实验验证模型后，详细研究了侧风和输入电流对电弧温度和电压的影响。改变两个参数，即悬链线的直径和受电弓带与悬链线之间的间隙距离，看看可能产生什么影响。发现了温度和电压下降的一个有趣的周期性现象，并根据流体理论的卡门涡街进行了解释。