基于快速消弧线圈的消弧选线一体化装置研究.pdfVIP

中国科技论文在线 基于快速消弧线圈的消弧选线一体化装置 研究 辛健，王崇林，王洋洋** 5 （中国矿业大学信电学院，江苏 徐州 221008） 摘要：单相接地故障是煤矿电网常见的故障形式，随着电容电流的增大，故障接地电弧难以 自动熄灭，消弧线圈被广泛采用，但其增加了单相接地故障选线的难度，为此本文将消弧和 选线相结合，通过利用高短路阻抗消弧线圈的可控性，设计了一种消弧选线一体化装置来解 决煤矿电网消弧和选线的问题。理论分析及仿真验证证明该方法是可行的，最后开发了消弧 10 选线一体化装置，介绍了装置的软硬件设计。 关键词：电力系统及其自动化；高短路阻抗消弧线圈；选线；消弧；谐振接地 中图分类号：TM77 Study on Incorporate Device of Arc-suppression and Fault 15 Line Selection Based on Arc-suppression Coil with High Short Impedance XIN Jian, WANG Chonglin, WANG Yangyang (School of Information and Electrical Engineering, China University of Mining Technology, JiangSu XuZhou 221008) 20 Abstract: The single-phase grounding fault is a common fault form in coal mine power network. As the increasing of capacitycurrent, the grounding arc is difficult to turn off automatically, so the arc-suppression coil is widely used, which increases the difficulty of fault line selection in resonance grounding system in coal mine. In this paper, arc-suppression and line selection are combined, using the controllability of arc suppression with high short impedance, a incorporate 25 device of arc-suppression and fault line selection is developed to solve the problem. Theoretical analysis and simulation results prove the method is affective. At last, the software and hardware design are introduced. Keywords: electric power system and automation; arc-suppression with high short impedance; line selection; arc-suppre