并联电抗器组合式消弧线圈的研究  

Research on Combined Arc Suppression Coil with Shunt Reactor

作　　者：何锡祺[1] 齐郑[1] 杨以涵[1] 李新泉[1] 董迪[1] 孙博闻[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206

出　　处：《电力系统自动化》2008年第3期92-96,共5页Automation of Electric Power Systems

摘　　要：提出了新型的并联电抗器组合式消弧线圈,阐述了消弧线圈的整体结构和自动控制系统的构成,讨论了其动态调谐原理和工作方式。该消弧线圈具有16挡或32挡调节功能。电网正常运行时监测系统对地电容变化,对地电容发生变化时精确计算电容电流,精度达到1A以内;接地故障时投入可以精确地补偿系统对地电容电流,进行全补偿消弧,同时采用突变量选线方法进行故障选线,能够大大提高选线正确率。现场实际运行情况证明该消弧线圈能够满足现场要求。A new type arc suppression coil combined with shunt reactor is proposed. Based on the main circuit and control structure of the arc suppression coil, its dynamic tuning method and working mode are determined. The arc suppression coil has 16 taps or 32 taps. The device monitors the varieties of earth fault current in case of the normal operations of the power network while calculating the earth fault current accurately with a precision of 1 A in case of the network changing. The arc suppression coil can be quickly set to the full compensation if the single phase-to-ground fault occurs. At the same time, the selection of fault line based on the fault component principle can improve the success ratio of fault line selection significantly. The field tests reveal that the arc suppression coil can meet the practical requirements.

关 键 词：并联电抗器 消弧线圈 自动调谐 接地选线 

分 类 号：TM47[电气工程—电器] TM55