摘要
云广特高压直流控制保护系统通过冗余配置的测量总线获取现场测量的数据,实现特高压直流系统稳定运行。文章介绍了云广直流工程测量系统的配置,分析测量总线故障识别方法以及故障情况下的切换逻辑,结合运行中出现的问题,指出故障识别设计中的缺陷,提出了改进方法并在现场得到应用。
The data on-site are transmitted to the control and protection systems by redundant configured measure-ment bus in Yunnan-Guangdong ±800kVDC transmission project, so as to achieve the stable operation of the UH-VDC system.The configuration of Yun-Guang DC engineering surveying system has been described in this paper.The fault identification and the switching logic of measurement bus have been analyzed as well.Based on the problems occurred during operation, the defect of design in fault identification has been pointed out.At last, an improved meth-od has been proposed and applied in yunnan-guangdong UHVDC system on site.
出处
《电测与仪表》
北大核心
2014年第21期43-46,73,共5页
Electrical Measurement & Instrumentation
关键词
特高压直流输电
测量总线
故障识别
切换逻辑
UHVDC transmission project
measurement bus
fault identification
switching logic
