【摘要】 在分析现有中低压变电站自动化系统通信网络的基础上 ,根据网络技术发展的最新成果 ,提出了基于嵌入式以太网的面向超高压变电站自动化系统的通信网络。文中对以太网在变电站自动化系统中的应用模式和传输模式这 2个关键问题进行了分析和研究 ,选择分组广播模式作为传输模式 ,UDP作为嵌入式以太网的传输层协议。所提出的方案已在工程实际中应用 ,取得了良好效果更多还原

【Abstract】 This paper analyzes the com munication network of the existing L V/MV substation automation system .Considering the developm ent of communication network,the com munication network architecture based on the embedded Ethernet technique for EHV substation autom ation system is proposed.The application mode and transport mode of Ethernet used in substation autom ation system are analyzed in this paper.Multicast is selected as the transport mode and U DP is selected as the transport layer protocol for the embedded Ethernet.The schem e provided in this paper has been verified in a practical project.更多还原