500kV变电站统一同步时间系统设计及实施  

500 kV Substation Synchronic Time System Design and Application

作　　者：张勇平[1] 盛慧慧[2] 杨静[1] 

机构地区：[1]华北电网有限公司,北京100053 [2]北京市电力公司,北京100031

出　　处：《华北电力技术》2009年第11期31-35,共5页North China Electric Power

摘　　要：阐述了同步时间系统在电力系统中的应用,现有同步时间系统在500 kV变电站中应用的情况及不足。针对不足给出了解决方案,方案使用国际通用的包含全时间信息的IR IG-B对时方式;考虑传输通道时延,设计中采用同步时钟主钟互备,多种外信号、内信号之间互备;根据实际情况采取单通道和双通道组网模式,针对不同小室,安装同步扩展时钟等方法保证对时准确性。This paper illustrates the application of synchronic time system in the electrical system and the present condition and deficiency of synchronic time system in the application of 500 kV substation. Aimed at the deficiency, it also provides solution plan which uses international IRIG-B synchronic mode that includes full time information. In consideration of the delay caused by transmission, the design adopts synchronic clock and main clock for double guarantee, and multi signals from both outside and inside as well. According to the practical condition, it introduces net mode made of single or double channel. It adopts ways like installing extensional synchronic clock to assure the accuracy of synchronic time in different rooms.

关 键 词：同步时间系统 GPS IRIG—B码对时 500 KV变电站 组网结构 

分 类 号：TM63[电气工程—电力系统及自动化]