智能变电站冗余网络中IEEE1588协议的应用

摘要

IEEE1588标准为网络度量和控制系统定义了精确时钟同步协议PTP，PTP协议可以为分布式网络实现亚us级精度的同步。智能变电站中网络通信的可靠性对整个智能变电站系统的稳定有重要作用。针对智能变电站的网络冗余问题，分析了IEC62439-3中的并行冗余协议（PRP）和高可用无隙环（HSR），研究了在变电站冗余网络中实现PTP同步的方法和相关问题。%IEEE 1588 defines Precision Time Protocol（PTP） for network measurement and control system, which can achieve synchronization within sub-microsecond precision range for distributed network. Network communication reliability plays a very important role in intelligent substation stability. For the problem of network redundancy in intelligent substation, this paper analyzes the Parallel Redundancy Protocol （PRP）and High Availability Seamless Ring （HSR） adopted in IEC 62439-3, and proposes the method to implement PTP in redundant network of intelligent substation.