基于工业以太网技术分析,本文阐述了IEC 61850 协议的工作原理、建模方法和报文 性能需求,介绍了在工业以太网中应用IEC 61850 标准的通信机制,探讨了在变电站自动化系统中引入RTPS 模型的设计方法。 关键词:IEC61850; 以太网; RTPS Abstract: Based on the analysis of Ethernet technology, this paper expatiates the work principle, modeling method and message’s capable request. Besides, we describe the communication manufacturing of IEC61850 protocol in Ethernet and discuss the way how to design RTPS model in the Substation Automatic System. Key words: IEC61850; Ethernet; RTPS