基于IEEE1588的智能变电站多时钟域数据同步技术  

IEEE1588-based multi-clock domain synchronization in smart substation

作　　者：宁楠 廖晓春 邓其军[3] 陈显烽 

机构地区：[1]贵州六盘水供电局变电管理所,贵州六盘水553001 [2]武汉顺承科技有限公司,湖北武汉430079 [3]武汉大学自动化系,湖北武汉430072 [4]中国五环工程有限公司,湖北武汉430223

出　　处：《武汉大学学报（工学版）》2014年第3期344-349,共6页Engineering Journal of Wuhan University

摘　　要：传统对时系统存在占用专用网络、可靠性不足等问题,不能满足智能变电站一体化高精度数据平台的应用要求.首先分析了电力系统对时钟同步的需求以及IEEE 1588协议的同步原理,并提出基于IEEE 1588的智能变电站多时钟域数据同步技术,基于数据集比较算法与状态选择算法提出了在多时钟域内选择最佳时钟的方法,最后以合并单元为例介绍多时钟域同步的设计与实现.The traditional clock synchronization system occupies private network and has problems of lacking reliability, which can not meet the application requirements of the integration of high-precision data platform in smart substation. This paper first analyzes the synchronous clock synchronization requirements of power system as well as principle of the IEEE1588 protocol, and proposes a smart substation multi-clock domain data synchronization technology based on the IEEE1588, and proposes the best clock selection algo- rithm based on data sets comparison algorithm and state selection algorithm. Finally, the paper sets the merging u nit as an example to introduce the design and realization of multi-clock domain synchronization.

关 键 词：智能变电站 IEEE1588 同步 多时钟域 

分 类 号：TM734[电气工程—电力系统及自动化]