潘姿君,张志朝,刘茂涛,余涛,洪谊东.云广特高压直流测量总线故障识别和切换逻辑研究[J].电测与仪表,2014,51(21):. panzijun,zhangzhichao,liumaotao,yutao,Hong Yidong.Reserch on Fault Identification and Switching Logic of Measurement System in Yun-Guang UHVDC System[J].Electrical Measurement & Instrumentation,2014,51(21):.
云广特高压直流测量总线故障识别和切换逻辑研究
Reserch on Fault Identification and Switching Logic of Measurement System in Yun-Guang UHVDC System
The data on-site is transmitted to the control and protection systems by redundant configured measurement bus in Yunnan – Guangdong ±800kV DC transmission project, to achieve the stable operation of the UHVDC system. This paper describes the configuration,fault identification and switching logic of measurement bus.Based on the problem occurred during operation,pointing out the defect of design in fault identification.At last, improvement proposal is given,and the proposal has been applied in yunnan-guangdong UHVDC system on site.