现阶段的数字化变电站网络架构设计

Network Structure Design for Digital Substation on Stage

数字化变电站是常规变电站的发展方向,网络架构作为数字化变电站的核心内容应对其进行深入研究。文中分别从功能结构和物理结构两方面对数字化变电站的基本网络进行分析,指出可行方案。以实际建设的数字化变电站为对象,分析了网络流量并提出了合适的网络带宽;结合常规保护装置的配置原则,提出了一种较为合适的网络冗余方案,并给出了实际典型间隔的网络架构图。最后提出了简单可行的虚拟局域网划分方法。为现阶段提供了一种实用的网络架构方案,为数字化变电站的大规模应用打下了坚实基础。

Digital substation is the development direction of conventional substation, and network structure as the core of the digital substation should be studied in-depth. After analyzing the basic network of digital substation from the function structure and the physical structure, the feasible options are pointed out. According to the actual digital substation which will be constructed, the network flux is analyzed and the appropriate network bandwidth is proposed. In conjunction with the conventional c^0nfiguration principles of the protection device, the appropriate network redundancy method is proposed, and then the network structure map of the actual typical bay is given and the simple and practical method of VLAN （virtual local area network） is proposed. This paper provides an utility network structure scheme at this stage and constructs the foundation for large-scale applications of the digital substation.