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Design and Simulation for Optical Acquisition of Pantograph-catenary Arcing Detection System of Electrified Railway

机译:电气化铁路电压耦合电弧检测系统光学采集设计与仿真

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Running efficiency of electrified railway is restricted seriously by arcing between pantograph and overhead line system. Since the frequency of arcing happens can reflect the contact-loss rate between pantograph and catenary system, the qualitative determination of arcing plays a more and more important role in this professional field. Detection system based on ultraviolet ray in sunlight blind region can detect time, location and amplitude of arcing. To design a reasonable optical system can collect optical signal maximally of a feeble ultraviolet ray of arcing and it is useful to increase the detection accuracy. Photon number collecting by fiber bundle of optical gather system on the top of the train is estimated when it is installed 3 m distance from the contact point between pantograph and contact line. And the image spot size is simulated in this paper. The results indicate that sizes of image spots are similar to the airy spots, so the light energy lost can be neglected when coupling. The parameters designed for optical system in this paper meet the requirement of photon acquisition. D>10.1088/1757-899X/439/5/052001
机译:通过电机与架空线系统之间的电弧放电,电气化铁路的运行效率受到限制。由于弧度的频率发生,因此可以反映Pantograph和Catenary系统之间的接触损失率,因此弧度的定性测定在这一专业领域中起着越来越重要的作用。基于紫外线在阳光盲区域中的检测系统可以检测电弧的时间,位置和幅度。设计合理的光学系统可以最大地收集光学信号的弱紫外线电弧射线,并且可以增加检测精度是有用的。估计从火车仪和接触线之间的接触点安装3米的距离列车顶部的光纤束光纤系数的光子数。在本文中模拟了图像点尺寸。结果表明,图像斑点的尺寸类似于通风斑点,因此在耦合时可以忽略光能损失。本文中设计用于光学系统的参数符合光子采集的要求。 D> 10.1088 / 1757-899X / 439/5/052001

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