Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

一起换流站主时钟系统时间异常影响分析

来源:电工电气发布时间:2017-11-17 08:17 浏览次数:9
一起换流站主时钟系统时间异常影响分析
 
汤安琪,荣军
(中国南方电网超高压输电公司柳州局,广西 柳州 545026)
 
    摘 要:针对一起换流站GPS 时间同步系统主时钟异常告警事件,基于GPS 对时原理,现场利用整套备件重新搭建临时试验系统,分析了主时钟故障原因及其导致直流双极闭锁的风险,通过逻辑梳理及仿真试验,研究了两站直流控制保护系统对时异常及各套直流控制保护系统对时异常对直流系统的影响,并提出相应措施,确保变电站安全运行。
    关键词:主时钟系统;时间异常;影响分析;建议措施
    中图分类号:TM631     文献标识码:B     文章编号:1007-3175(2017)11-0041-04
 
Time Abnormal Impact Analysis of a Case of Master Clock System in Convertor Station
 
TANG An-qi, RONG Jun
(Liuzhou Bureau, China Southern Power Grid EHV Power Transmission Company, Liuzhou 545026, China)
 
    Abstract: In allusion to an abnormal master clock alarm event of global position system (GPS) time synchronization in the convertor station, based on the GPS timing principle, the interim trial system was constructed again with a complete set of replacement part on site. This paper analyzed the reason of the master clock fault and its generating risk of direct current (DC) bipolar block. Via logic analysis and simulation, this paper researched on the timing abnormity of two-station DC control and protection system and its impact on the DC system, and proposed the corresponding measures to guarantee the safe operation of transformer substation.
    Key words: master clock system; clock fault; impact analysis; suggestions and measures
 
参考文献
[1] 彭飞进,车磊,邓智广. 变电站时钟系统同步异常的判断方法[J]. 电力系统及其自动化学报,2015,27(2):98-102.
[2] 刘诚. 浅析智能变电站时钟同步系统和异常实例分析[J]. 华东科技( 学术版),2016(9):94.
[3] 冯正伟,何祥文,杨鑫. 智能变电站时间同步系统异常分析[J]. 浙江电力,2014(9):22-26.
[4] 余敬冬. 变电站GPS对时装置频繁异常告警影响分析[J]. 电工技术,2017(3):116-117.