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从与我国现有变电站自动化系统间隔层设备比较的角度出发,研究了变电站新型通信网络和系统协议IEC61850中的智能电子设备IED的模型,分析了IED在IEC61850体系结构中的作用与逻辑模型、数据对象模型、通信网络的性能和通信模式等工作机制,围绕变压器差动保护IED进行了功能模型、信息流、类等方面的设计,说明了新型IED的先进性和可行性。
From the standpoint of comparing with the existing substation automation system in our country, the model of intelligent electronic equipment IED in the new communication network and system protocol IEC61850 of substation is studied. The function and logical model of IED in IEC61850 architecture are analyzed. Data Object model, performance of communication network and communication mode. The design of functional model, information flow, class and so on around the transformer differential protection IED shows the advancedness and feasibility of the new IED.