相控式与偏磁式消弧线圈的研究

摘要

分析了相控式消弧线圈与偏磁式消弧线圈的工作原理,详细介绍了这两种消弧线圈补偿电流的特性,阐述了电网正常运行和发生单相接地故障时这两种消弧线圈的工作特性,从而得出结论:带滤波电路的相控式消弧线圈有一定的滤波作用,但由于存在滤波电路而使相控式消弧线圈的补偿效果较差;偏磁式消弧线圈既能有效滤波,又能起到很好的补偿效果.%The paper analyzed working principle of phase-controlled and magnetic bias arc-suppression coils, introduced characteristics of compensation current of the two arc-suppression coils in details and expounded working characteristics of the two arc-suppression coils when power grid is in state of normal running and single-phase grounding fault. The results are as following: phase-controlled arc-suppression coil with filtering circuit has certain filtering function and bad compensation effect because of filtering function; magnetic bias arc-suppression coil not only can filtering effectively but also has good compensation effect.