Title :
Researches on the time-varying failure rate characteristic for the HVDC protection devices in China Southern Power Grid
Author :
Cao Xiaoguai ; Wang Ruichen ; Wang Bao ; Shao Zhen ; Luo Yuhang ; Xue Ancheng ; Bi Tianshu ; Huang Shaofeng
Author_Institution :
EHV Power Transm. Co., China Southern Power Grid, Guangzhou, China
Abstract :
In China Southern Power Grid (CSG), the SIMADYN D (SD) of SIEMENS plays an important role for the HVDC protection system. Based on the field failure data of SD, this paper studies the time-varying failure rate (TFR) characteristic for the protection devices of HVDC in the CSG. According to the concept of TFR, failure mode is divided into two types, one is the aging failure and the other is the random failure. According to the above failure classification, the failure characteristic of different modules is also discussed.
Keywords :
HVDC power transmission; power grids; power system protection; power transmission faults; CSG; China Southern Power Grid; HVDC protection devices; HVDC protection system; SD; SIEMENS; SIMADYN D; TFR characteristic; aging failure; failure classification; failure mode; field failure data; random failure; time-varying failure rate characteristic; Copper; Estimation; Insulation; Reliability; Safety; HVDC Protection Devices; SIMADYN D; Time-varying failure rate; Weibull distribution;
Conference_Titel :
Advanced Power System Automation and Protection (APAP), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-9622-8
DOI :
10.1109/APAP.2011.6180618
