基于调匝式消弧线圈的虚幻接地解决措施  

Solutions for Virtual Grounding Based on Turn-adjustable Arc Suppression Coil

作　　者：袁明哲 马娅妮 汪祺航 邹经鑫 曹柯 YUAN Mingzhe;MA Yani;WANG Qihang;ZOU Jingxin;CAO Ke(State Grid Chengdu Electric Power Supply Company, Chengdu 610041, Sichuan, China;College of Electrical Engineering, Sichuan University, Chengdu 610065, Sichuan, China)

机构地区：[1]国网四川省电力公司成都供电公司,四川成都610041 [2]四川大学电气工程学院,四川成都610065

出　　处：《四川电力技术》2022年第2期48-54,共7页Sichuan Electric Power Technology

基　　金：国网四川省电力公司科技项目(3500586260)。

摘　　要：针对调匝式消弧线圈系统频繁出现虚幻接地的现实情况,考虑消弧线圈设备参数及结构设置对其补偿算法的影响,对虚幻接地产生的原因进行了研究。在对消弧线圈控制原理进行理论分析的基础上,模拟实际运行情况,设计并完成了触发实验和调挡实验;进而深入分析并验证了消弧线圈自身装置对虚幻接地的影响,提出了消弧线圈触发装置升级改造的优化结构,并为消弧线圈投运前触发功能检测提供了阈值实验方案。同时考虑多台消弧线圈并列运行的安排策略,有助于保证消弧线圈能够精准补偿系统容流,避免产生虚幻接地,对减少电力调度工作中接地误判有一定的积极作用。In view of the reality that virtual grounding frequently occurs in turn-adjustable arc suppression coil system,the causes of virtual grounding are studied considering the influence of equipment parameters and structure settings of arc-suppression coil on its compensation algorithm.Based on the theoretical analysis of arc-suppression coil control principle,the actual operation is simulated,the trigger experiment and shift experiment are designed and completed,and then the influence of arc-suppression coil device on the occurrence of virtual grounding is deeply analyzed and verified,and the optimized structure of trigger device of arc-suppression coil after upgrading is proposed.The threshold test scheme is provided for triggering function detection of arc-suppression coil before being put into operation,and the arrangement strategy of parallel operation of multiple arc-suppression coils is considered,which is helpful to ensure that arc-suppression coil can accurately compensate system capacity flow,avoid virtual grounding,and play a certain positive role in reducing grounding misjudgment in power dispatching.

关 键 词：调匝式消弧线圈 虚幻接地 容流补偿算法 触发装置优化 

分 类 号：TM855[电气工程—高电压与绝缘技术]