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工程设计学报
工程设计学报  2013, Vol. 20 Issue (5): 446-452    
机电一体化和智能化系统设计理论、方法与技术     
不平衡牵引回流对断轨检测电路干扰的研究
 张友鹏, 李军丽, 赵斌
兰州交通大学 自动化与电气工程学院，甘肃 兰州 730070
Research on interference of the unbalanced traction return current to circuit for broken rail detection
 ZHANG  You-Peng, LI  Jun-Li, ZHAO  Bin
School of Automation & Electrical Engineering， Lanzhou Jiaotong University， Lanzhou 730070, China
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摘要： 断轨检测电路受到传导性干扰中不平衡牵引回流的干扰，为了降低不平衡牵引回流对断轨检测电路的影响，在分析断轨检测电路调整状态和断轨状态下信号电流的特性以及AT供电方式下牵引回流的分布规律及特征的基础上，深入分析不平衡牵引回流对断轨检测电路干扰的机理.为了保证断轨检测电路的正常工作，从设备选型、工程设计及运营维护方面提出防护措施，并对根据抗电气化干扰原理设计的抗干扰电路进行仿真分析.结果表明：该电路接入断轨检测电路受电端后，有效地降低了进入接收设备的干扰量，使其不影响断轨结果的判定，提高了断轨检测电路的抗干扰能力.
关键词： 断轨检测电路;  不平衡牵引回流;  干扰;  防护    
Abstract: Circuit for broken rail detection suffers from the unbalanced traction return current in the conducted interference. In order to reduce the reference of the unbalanced traction return current to circuit for broken rail detection， based on analysis of characteristics of signal current of circuit for broken rail detection in normal rail and broken rail operation modes and distribution rule and characteristic of the traction return current under AT power supply， interference mechanism of the unbalanced traction return current to circuit for broken rail detection was deeply studied. In order to guarantee the normal work of circuit for broken rail detection， some protective measures were put forward from equipment selection， engineering design and operation maintenance. Antiinterference circuit which was designed based on the principle of electrification interference was simulated and analyzed. The result shows that the circuit which is installed the receiving end of circuit for broken rail detection effectively reduces the interference which enters into the receiving equipment. It makes the unbalanced traction return current not affect result of judgment of broken rail. This improves the antiinterference ability of circuit for broken rail detection．
Key words: circuit for broken rail detection    unbalanced traction current    interference    protection
出版日期: 2013-10-28
基金资助:

国家自然科学基金资助项目（51247002）.
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引用本文:

张友鹏, 李军丽, 赵斌. 不平衡牵引回流对断轨检测电路干扰的研究[J]. 工程设计学报, 2013, 20(5): 446-452.

ZHANG You-Peng, LI Jun-Li, ZHAO Bin. Research on interference of the unbalanced traction return current to circuit for broken rail detection. Chinese Journal of Engineering Design, 2013, 20(5): 446-452.

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https://www.zjujournals.com/gcsjxb/CN/    或    https://www.zjujournals.com/gcsjxb/CN/Y2013/V20/I5/446

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