Application Of IEC61850 Standard In Intelligent Substation

The application of IEC61850 Standard in intelligent substation is studied in order to improve the communication mode of intelligent substation,and the main development direction of communication of intelligent substation is determined by the research results,so as to solve the five problems of substation: 1.Accuracy of measurement;2.Electromagnetic interference problem;3.Real-time feedback of circuits and voltages;4.Interoperation between secondary devices;5.Risk Problem of secondary cable circuit.The fatal problem in the traditional substation is the lack of uniform rules for information transfer between devices,the information can not be automatically interactive,the information is isolated,sharing can not be achieved,and the system is not strong.In order to solve these problems,this paper analyzes IEC61850 standard combined with network communication technology.The main work is first of all,a mathematical model should be set up on the research idea.After setting up the node model,the network is configured according to its characteristics and the attribute function in the network.Finally,based on the IEC61850,combining the powerful functions of modern software,the Model of substation network is established by simulation,and the final result is obtained by simulation,which is completed by OPNET Modeler software.Specific to each chapter is a brief introduction to the current situation of this field at home and abroad,and combining with the domestic environment to elaborate the reasons for the current situation in China,as well as the main research direction of this paper;after that,IEC61850 Standard is simply described The modeling technology,Communication Service Interface,server mapping and general programming language SCL are explained,and then the establishment method of intelligent substation IED is presented,combined with IEC61850 Modeling and analyzing the server,logic node,device,network and related data,obtaining the analysis results,taking the modeling of Iec61850 Line Protection Device as an example to illustrate the modeling process and the Implementation Rules Then the process of communication data MMS,GOOSE and SV in intelligent substation is studied,and the corresponding hardware and network configuration are introduced briefly.The result of the paper is to determine the standard of modularization and the method of network configuration.Finally,the simulation software OPNET Modeler is used to simulate the network The experimental data are summarized from three aspects: Different Network Topology,different protocol model simulation results and network delay uncertainty simulation results,and the best scheme of each variable is determined.