IEEE1588时钟同步技术在数字化变电站中的应用  

Application of IEEE1588 time synchronization in digital substation

作　　者：汪祺航[1,2] 吴在军[1,2] 赵上林[1,2] 黄伟[3] 

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]伺服控制技术教育部工程研究中心,江苏南京210096 [3]江苏省电力试验研究院有限公司,江苏南京211102

出　　处：《电力系统保护与控制》2010年第19期137-141,169,共6页Power System Protection and Control

摘　　要：介绍了国内现阶段数字化变电站时钟同步技术的应用,比较了现阶段变电站时钟同步技术的技术特点。针对基于IEC61850标准的新型数字化变电站高精度时钟同步指标要求,引入能达到亚微秒级对时精度的IEEE1588时钟同步对时技术,阐述了IEEE1588时钟同步技术原理。重点讨论基于IEEE1588时钟同步技术的两种变电站配置方案——基于边界时钟的对时网络和基于透明时钟的对时网络,论述了基于透明时钟的对时网络的优越性。提出了对时装置的设计方案,并分析了影响IEEE1588对时性能的重要因素和补偿手段。This paper introduces the application of time synchronization schemes in digital substation and compares the technical characteristics of these schemes. Then for the high accuracy synchronization requirement of IEC61850 based digital substation, a time synchronization system based on IEEE1588 which can support sub-microsecond level of accuracy is put forward and the theory of IEEE1588 is expatiated. Based on IEEE1588, t wo application schemes on time synchronization network in substation are expounded. One is based on boundary clock and the other is based on transparent clock.The advantage of the scheme based on transparent clock is discussed. At last this paper presents a design scheme of the time synchronization device ,a nd analyzes the important factors which impact the IEEE1588 time synchronization function, as well as the compensation methods.

关 键 词：时钟同步 IEEE1588 数字化变电站 

分 类 号：TM76[电气工程—电力系统及自动化]