零接地故障电流消弧线圈的研究
Study on Research on a Zero-residual-current Arc Suppression Coil
随着配电网容量的日益增大，非线性负荷、电力电子设备的大量增加及电缆线路的广泛使用，在接地故障电流中的谐波及有功分量大幅提高。由于传统的消弧线圈无法对接地故障中的谐波和有功分量进行补偿，此时即便基波分量被完全补偿，但接地故障电流中的有功分量和谐波分量也足以使电弧维持，引起过电压及事故的进一步发展。本文以三相五柱双二次绕组消弧线圈为基础，分析了零残流消弧线圈的等效电路、实现原理，在此基础上通过逆变器从二次侧注入电流的方法实现了对接地故障电流的控制。实验结果证明了理论分析与实现方法的正确性和有效性。
s the increasing capacity of MV power system,more non-linear loads and more buried cables using,the earth-fault current increases much more than before.?The result is that the percent of harmonic and active current also grows much more, and can not be neglected.Since classical arc-suppression coil can not compensate the harmonic and active component.?In this paper,?Analysis of residual streams of zero arc suppression coil equivalent circuit and principle base on?three-phase five-column arc suppression coil with two secondary windings. Then,?achieve control of residual current through the inverter from the secondary side. Experimental results show that the theoretical and implementation is correct.
陈龙、张贺、霍亮亮
变压器、变流器、电抗器
单相接地零残流有源消弧线圈
Single-phase-to-ground faultzero-residual currentactivearc suppression coil
陈龙,张贺,霍亮亮.零接地故障电流消弧线圈的研究[EB/OL].(2010-12-17)[2025-06-08].http://www.paper.edu.cn/releasepaper/content/201012-632.点此复制
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