智能变电站IEEE1588时钟同步冗余技术研究

摘要

针对智能变电站时钟同步系统现状,提出了基于IEEE1588的时钟同步系统冗余方案.在分析IEEE1588的实现原理及其特点的基础上,提出了单钟方案、双钟互备方案和双钟双扩展方案.重点对双钟互备方案进行了阐述,并详细分析了时钟冗余切换原理和过程.同时,进一步对双钟互备方案在变电站单网和双网模式下,不同网络方案对时钟冗余造成的影响进行了研究.%Aiming at the present situation of smart substation clock synchronization system, this paper proposes the redundancy scheme of clock synchronization system based on IEEE1588. By analyzing the realization principle and characteristics of IEEE1588, a single clock scheme, double clock backup scheme and dual clock double extension scheme are proposed. The double clock backup scheme is emphasized, and the clock redundancy switching principle and process are detailed. At the same time, the double clock backup scheme in substation single network and dual network mode, and the effects of different network schemes on clock redundancy are studied.