煤矿变电站纵差防越级跳闸保护装置的设计及实验测试  

Design and Experimental Testing of Longitudinal Differential Anti-Overstep Tripping Protection Device for Coal Mine Substations

作　　者：李婷 LI Ting(Electric Datong Co.,Ltd.,Jinneng Holding Coal Industry Group,Datong,Shanxi 037003,China)

机构地区：[1]晋能控股煤业集团电业大同有限公司,山西大同037003

出　　处：《自动化应用》2024年第5期224-225,231,共3页Automation Application

摘　　要：为解决供电系统中下级变电所线路故障使上级变电所跳闸的越级跳闸故障,在分析供电系统的基础上,提出在供电网络中应用基于光纤通信的纵联差动防越级跳闸保护技术。重点研究光纤电流纵差防越级跳闸保护技术的原理,设计防越级跳闸保护装置,并基于实验平台测试该装置的性能,发现其能处理越级跳闸故障。In order to solve the overstep tripping fault in the power supply system in which the line fault of the lower substation makes the upper substation trip,based on the analysis of the power supply system,it is proposed to apply the longitudinal differential anti-overstep tripping protection technology based on fiber-optic communication in the power supply network.Focusing on the principle of fiber-optic current longitudinal differential anti-overstep tripping protection technology,the anti-overstep tripping protection device is designed,and the performance of the device is tested based on the experimental platform,which is found to be able to solve the overstep tripping fault.

关 键 词：变电站 越级跳闸 纵联差动保护 时钟同步 光纤通信 

分 类 号：TD611[矿业工程—矿山机电]