特高压直流输电中性母线直流电流异常后逻辑判断优化的研究  

Study on optimization of logic judgment after abnormal neutral bus DC current in UHVDC transmission project

作　　者：张青伟 吴金波 艾红杰 王祺元 杨成飞 ZHANG Qingwei;WU Jinbo;AI Hongjie;WANG Qiyuan;YANG Chengfei(XJ Electric Co.,Ltd,Xuchang,He’nan 461000)

机构地区：[1]许继电气股份有限公司直流输电分公司,河南许昌461000

出　　处：《电气技术》2021年第3期94-97,共4页Electrical Engineering

摘　　要：基于目前国内雁淮特高压直流工程,对中性母线直流电流IDNC异常判断处理逻辑进行研究,分析目前系统运行时所出现的异常工况,改进特高压直流输电系统IDNC异常判断处理逻辑,并搭建基于雁淮特高压工程的RT-LAB实时仿真模型,仿真结果合理有效,最后推广到目前在运特高压工程,取得了良好的经济和社会效益。On the basis of the research on the abnormal judgment and processing logic IDNC neutral bus DC current in Yanhuai UHVDC project at present,the abnormal working conditions of the current system are analyzed,and the anomaly judgment and processing logic IDNC UHVDC transmission system is improved.The RT-LAB real-time simulation model based on Yanhuai UHV project is built.The test results are reasonable and effective.At last,the abnormal judgment and processing logic IDNC has been applied to the UHV system in operation,and achieved good economic and social effects.

关 键 词：特高压直流 中性母线直流电流 故障判断 主从切换 雁淮特高压直流输电工程 

分 类 号：TM721.1[电气工程—电力系统及自动化]