集成行波测距功能的高压输电线路保护装置的技术探讨  

Technical Discussion on High-voltage Transmission Line Protection Device Integrated with Travelling Wave Fault Location Function

作　　者：邹磊[1,2] 薛明军 龙琳[3] 韩志勇 王胜[1,2] 陈福锋[1,2] 张祥 胡俊彦[1,2] Zou Lei;Xue Mingjun;Long Lin;Han Zhiyong;Wang Sheng;Chen Fufeng;Zang Xiang;Hu Junyan(Guodian Nanjing Automation Co., Ltd., Nanjing 211100, Jiangsu, China;Nanjing SAC Automation Co., Ltd., Nanjing 211100, Jiangsu, China;State Grid Beijing Electric Power Company, Beijing 100124, China)

机构地区：[1]国电南京自动化股份有限公司,江苏南京211100 [2]南京国电南自电网自动化有限公司,江苏南京211100 [3]国网北京市电力公司,北京100124

出　　处：《四川电力技术》2021年第5期31-35,47,共6页Sichuan Electric Power Technology

摘　　要：以集成行波测距功能的高压线路保护装置为目标,提出了装置的总体硬件架构设计方案和行波测距软件的整体实现方案,并利用线路保护的判别信息提高了行波测距功能的可靠性,在不影响继电保护性能的基础上实现了行波测距功能与保护功能的整体融合,为提高输电线路保护装置的测距性能提供了技术保证,仿真结果验证了该集成技术的可行性。集成了行波测距的线路保护装置能实时精确定位线路故障点,大大减少人工巡线的工作量,缩短了故障修复时间,提高了供电可靠性。Aiming at the high-voltage transmission line protection device integrated with travelling wave fault location function,the overall hardware architecture design scheme of the device and the overall software implementation scheme of travelling wave fault location module are proposed.Besides,the reliability of travelling wave fault location function is improved by using relay protection information,and the overall integration of travelling wave fault location function and protection function is realized on the basis of not affecting the performance of relay protection,which provides a technical guarantee for improving the fault location performance of high-voltage transmission line pro-tection device.The simulation results verify the feasibility of the integration technology.The line protection device integrated with travelling wave fault location can accurately locate the line fault point in real time,greatly reduce the workload of manual line patrol,shorten the fault repair time,and improve the reliability of power supply.

关 键 词：行波测距 行波CPU 绝对时标 保护功能 

分 类 号：TM773[电气工程—电力系统及自动化]