摘要
介绍了IEEE1588标准定义的PTP(Precise Time Protocol)的原理和同步模型,详细分析了协议实现高精度同步的特殊机制。根据IEC61850所定义的同步精度要求及通信拓扑结构,给出了协议在变电站通信网络中的应用方案并,讨论了冗余性问题。
This paper introduces the principle of precision time protocol and synchronization models defined in IEEE1588 standard,and analyses the mechanism of the realization method of high-precision clock synchronization.According to the synchronization precision the topological structure of communication network required by IEC61850,the application schemes of PTP in digital substation are proposed.At last,the redundancy configuration method of PTP communication network and its switching problems are discussed.
出处
《电力学报》
2010年第3期246-250,265,共6页
Journal of Electric Power
关键词
PTP
数字化变电站
时钟同步
IEEE1588
digital substation
clock synchronization
