IEC 61850 

A Chap­ter of the

The GOOSE (Gener­ic Object Ori­ent­ed Sub­sta­tion Event) pro­to­col is a com­mu­ni­ca­tion mod­el defined by the IEC 61850 stan­dard, which uses fast and reli­able mech­a­nisms to group any for­mat of data (sta­tus, val­ue) into a data set and trans­mit it through elec­tri­cal net­works with­in a time peri­od of 4 milliseconds.

It is most com­mon­ly used for data exchanges between IEDs (IED – Intel­li­gent Elec­tron­ic Device) in elec­tri­cal sub­sta­tions over Ethernet.

IEC 61850 MMS (Man­u­fac­tur­ing Mes­sage Spec­i­fi­ca­tion) is a client/server based pro­to­col for com­mu­ni­ca­tions between IEDs (IED – Intel­li­gent Elec­tron­ic Device) and high­er lev­el enti­ties (such as RTUs and SCADAs) over Eth­er­net that is part of the IEC 61850 stan­dard for com­mu­ni­ca­tion tech­nol­o­gy in substations.

It is mapped onto TCP/IP and allows to access the serv­er through its IP address in order to write/read data and exchange files.

The IEC 61850 stan­dard for sub­sta­tion automa­tion spec­i­fies a stan­dard­ized Substa­tion Con­fig­u­ra­tion Lan­guage (SCL) to trans­fer device descrip­tions and com­mu­ni­ca­tion para­me­ters amongst dif­fer­ent vendors/ manufacturers. 

SCL files define sev­er­al capa­bil­i­ty sub­sets for the IED to instan­ti­ate its capabilities.

The IED Capa­bil­i­ty Descrip­tion (ICD) file is a spe­cif­ic type of SCL file, which are the con­fig­u­ra­tion files defined by the IEC 61850 stan­dard for mod­ern sub­sta­tion automation.

It is usu­al­ly sup­plied by man­u­fac­tur­ers and defines the full capa­bil­i­ty range of an IED.

Log­i­cal nodes (abstract data objects) are the main ele­ments of the vir­tu­al object-ori­ent­ed IEC 61850 mod­el, which con­sists of stan­dard­ized data and data attributes.

They can rep­re­sent switch­es in the grid, sen­sors, com­mu­ni­ca­tion inter­faces, or sim­ply con­tain descrip­tions of devices.

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