基于广义量测的地区电网T接线路故障测距系统  

Fault Location System of T-connection Lines in Regional Power Grid Based on Generalized Measurement

作　　者：张学清 梁中会 张莹[2] 孙祝寿 韩振兴 韩日东 王成福[2] 梁军[2] ZHANG Xueqing;LIANG Zhonghui;ZHANG Ying;SUN Zhushou;HAN Zhenxing;HAN Ridong;WANG Chengfa;LIANG Jun(State Grid Yangtai Power Supply Company,Yantai 264001, Chin;Key Laboratory of Power System Intelligent Dispatch and Control, Shandong University, Jinan 250061, China)

机构地区：[1]国网山东省电力公司烟台供电公司,山东烟台264001 [2]山东大学电网智能化调度与控制教育部重点实验室,山东济南250061

出　　处：《济南大学学报（自然科学版）》2018年第2期83-88,共6页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金(51177091;51607107);国网山东省电力公司2016年科技项目(SGSDYT00FCJS1600572)

摘　　要：为了快速定位110 kV地区电网中的T接线路故障点,提出并建立一种采用广义量测方法的T接线路故障测距系统,该系统由分布式采样终端、通讯网络以及综合分析研判中心3层网络结构构成;分布式采样终端以场检测原理为基础,通过无接触式感应行波采集装置采集行波的突变信号,再由通讯网络传送至综合分析研判中心进行测距分析。结果表明:无接触式行波感应装置以场检测为基础,可替代传统的电压或电流互感器,减少停电安装对电网运行造成的影响;通过对某地区电网的110 k V线路T接线进行分析,发现行波采集测距理论可较好地解决该地区电网的故障测距问题。In order to locate quickly the fault positions of110kV T-connection lines,a new fault location system based on generalized measurement technique was proposed.The system consisted of three-layer networks,including distributed sampling terminals,communication network and comprehensive analysis center.The results show that the distributed sampling terminals were based on field detection principle,collecting mutation signals through non-contact inductive device based on traveling wave and measuring distance through the communication networks in which signals were transferred to the comprehensive analysis center.The results show that the non-contact inductive device for traveling wave based on field detection can replace the traditional voltage or current transformer and reduce the impact of installation after power cut on the operation of the power grid.Through the analysis of110kV T-connection lines in the regional power grid,it can be found that the presented fault location theory based on the traveling wave acquisition can effectively solve the problem of fault location.

关 键 词：广义量测 地区电网 T接线路 故障测距 行波法 

分 类 号：TM773[电气工程—电力系统及自动化]