智能变电站跳合闸监测系统研究与应用  

Research and application of the on-line monitoring system for tripping and closing circuit in intelligent substation

作　　者：董中和 宋晓航 唐昱恒 王盛威 王义波 DONG Zhonghe;SONG Xiaohang;TANG Yuheng;WANG Shengwei;WANG Yibo(Wuhan Power Supply Company of State Grid Hubei Electric Power Co.,Ltd,Wuhan 430000;Wuhan Kemov Electric Co.,Ltd,Wuhan 430223)

机构地区：[1]国网湖北省电力有限公司武汉供电公司,武汉430000 [2]武汉凯默电气有限公司,武汉430223

出　　处：《电气技术》2021年第1期39-46,共8页Electrical Engineering

摘　　要：高压断路器是电力系统中必不可少的电气设备,断路器跳合闸回路的完好是保证断路器正常工作的必要条件。对跳合闸回路进行在线监测,是实现跳合闸回路预知性维修的前提,是保证电网安全可靠运行的关键因素。本文对跳合闸回路的工作状态与回路电流变化情况进行原理分析,并设计了跳合闸监测系统。该系统由电流采集电路、模数转换电路、主控系统和通信电路组成,完成跳合闸回路电流采集、量化、控制、过滤和发送等操作,配合使用在线监测设备监测软件,可以实现跳合闸回路实时监视和故障报警等多种功能。High voltage circuit breaker is an essential electrical equipment in the power system.The integrity of tripping and closing circuit is necessary to ensure the normal operation of the circuit breaker.The on-line monitoring of the tripping and closing circuit is the premise of realizing the predictive maintenance of the tripping and closing circuit,and the key to ensure the safety and reliability of the power grid.This paper has analyzes the operating state of tripping and closing circuit and the change of loop current,and design the monitoring system of tripping and closing circuit.This system consists of current acquisition circuit,analog-to-digital conversion circuit,main control system and communication circuit,and can complete the operation of current acquisition,quantification,control,filtering and sending.Cooperating with on-line monitoring software,it can realize real-time monitoring and fault alarm of tripping and closing circuit.

关 键 词：跳合闸回路 高压断路器 实时监测 电流采集 

分 类 号：TM63[电气工程—电力系统及自动化]