基于消弧线圈柔性补偿的单相接地故障选线方法研究  

A Flexible Compensation-based Approach for Detecting Single-phase Grounding Faults Using an Arc Suppression Coil

作　　者：代彬 焦洪涛 李宁[1] DAI Bin;JIAO Hongtao;LI Ning

机构地区：[1]国网衡水供电公司,河北衡水053000

出　　处：《今日自动化》2024年第10期101-103,共3页Automation Today

摘　　要：在电力系统中,单相接地故障是常见的故障类型,由于传统的选线方法存在诸多不足,如准确性不高、误判率大等,难以满足现代电力系统的运行需求。因此,研究提出了一种基于消弧线圈柔性补偿的单相接地故障选线方法。对该方法进行研究,在矩阵实验室仿真平台中对该方法进行模型构建,并对构建的模型进行结果分析。试验结果显示,当采用研究提出的选线方法,并设置电阻为1300Ω时,故障电流随时间增长均保持在10 A以下,最高电流仅为8 A,符合电力系统的安全要求。由此可知,研究提出的基于消弧线圈柔性补偿的单相接地故障选线方法是一种高效且可靠的选线方法,具有重要的理论意义和实践价值。In power system,single-phase grounding fault is a common type of fault.Due to the shortcomings of traditional line selection methods,such as low accuracy and high misjudgment rate,it is difficult to meet the operation needs of modern power system.Therefore,a novel method for identifying single-phase grounding fault lines is presented,utilizing the arc suppression coil's adaptive compensation capabilities.Firstly,the design of the method is studied.Then,the model of this method is constructed in matrix laboratory simulation platform.Finally,the results of the constructed model are analyzed.The experimental results show that when the proposed line selection method is adopted and the resistance is set to 1300Ω,the fault current keeps below 10 A with the increase of time,and the maximum current is only 8 A,which meets the safety requirements of power system.It can be seen that the proposed single-phase grounding fault line selection method based on the flexible compensation strategy of arc suppression coil is an efficient and reliable line selection method,which has important theoretical significance and practical value.

关 键 词：消弧线圈 柔性补偿 单相接地 故障选线 

分 类 号：TM862[电气工程—高电压与绝缘技术]