1、 This PDF file has been prepared by TC 57 experts and is made available to assist the users of the IEC 61850-7 series.Please note:?There was no IEC vote on these files,and IEC Central Office does therefore not take any responsibility as to their contents.?Adobe Acrobat 6.0 is required to navigate th
2、rough this file.Any comments on these files are to be communicated to the following address:Karlheinz Schwarz (schwarzscc-online.de)IEC 61850-Communication networks and systems in substationsInformative tutorial on the object modelsNOTE 1 These pdf files(html pages)are intended to provide a hypertex
3、t version of an excerpt of the main concepts and definitions of Parts IEC 61850-7-4,IEC 61850-7-3,and IEC 61850-7-2.NOTE 2 The content of these files is informative only.They do in no way replace the normative definitions contained in the above referenced documents.There are the following pages to b
4、rowse and study the object models:1.Modeling approach of logical nodes(one page-pdf)2.IEC 61850-7-2 Overview of ACSI models3.Logical nodes of 61850-7-44.Common data classes in a single windowThe xml files containg the models are(not available in the pdf format):-Logical Nodes from IEC 61850-7-4:2003
5、LN.xml-DATA Semantics from IEC 61850-7-4:2003Data-Sematic.xml-DATA-Attributes from IEC 61850-7-3:2003CDC.xml-DATA-Attribute Semantics from IEC 61850-7-3:2003DA-Semantic.xml-Common Data Attributes from IEC 61850-7-3:2003CDA.xmlThese xml files can be used to produce any other presentation.They should
6、not be used as normative xml documents.Parts of the standardG IEC 61850-1,Part 1:Introduction and overviewG IEC 61850-2,Part 2:GlossaryG IEC 61850-3,Part 3:General requirementsG IEC 61850-4,Part 4:System and project managementG IEC 61850-5,Part 5:Communication requirements for functions and devices
7、modelsG IEC 61850-6,Part 6:Configuration description language for communication in electrical substations related to IEDsG IEC 61850-7-1,Part 7-1:Basic communication structure for substation and feeder equipment-Principles and modelsG IEC 61850-7-2,Part 7-2:Basic communication structure for substati
8、on and feeder equipment-Abstract communication service interface(ACSI)G IEC 61850-7-3,Part 7-3:Basic communication structure for substation and feeder equipment-Common data classesG IEC 61850-7-4,Part 7-4:Basic communication structure for substation and feeder equipment-Compatible logical node class
9、es and data classesG IEC 61850-8-1,Part 8-1:Specific communication service mapping(SCSM)-Mappings to MMS (ISO/IEC 9506-1 and ISO/IEC 9506-2)and to ISO/IEC 8802-3G IEC 61850-9-1,Part 9-1:Specific communication service mapping(SCSM)-Sampled values over serial unidirectional multidrop point to point li
10、nkG IEC 61850-9-2,Part 9-2:Specific communication service mapping(SCSM)-Sampled values over ISO/IEC 8802-3G IEC 61850-10,Part 10:Conformance testingThe web pages and the corresponding xml files have been created byKarlheinz Schwarz,SCC.(schwarzscc-online.de)SCC does not take any responsibility as to
11、 the content of the files contained in the ZIP file IEC61850_HTML.zip(html,xml and jpg)or the browsable pdf file and linked on this page respectively.Karlheinz Schwarz,based in Karlsruhe,Germany,is a consultant for the power systems control industry.He is involved in several Working Groups within IE
12、C TC 57,TC 65,and TC 88.He is a well-known authority on the standardization and application of advanced information and communication technologies.IEC 2004Version 1.1 2004-03-22 SCC Draft 0-2 2004-01-03 What is a Logical Node?What is a Logical Node?By Karlheinz Schwarz,SCC,schwarzscc-online.de Motiv
13、ation Motivation The standard IEC 61850 Communication networks and systems in substations“and the coming standard IEC 61400-25 Communications for monitoring and control of wind power plants“use the concept of Logical Nodes(LN)Logical Nodes(LN)as a key element to define the information of a device to
14、 be communicated.This paper introduces the concept of LNs.Modeling oncept Modeling oncept IEC 61850IEC 61850 models substation equipment and func-tions(focus is on protection)IEC 61400-25 models substation equipment and func-tions(focus is on protection)IEC 61400-25 models components of wind power p
15、lants like rotor,generator,gear box,nacelle etc.(focus is on SCADA)models components of wind power plants like rotor,generator,gear box,nacelle etc.(focus is on SCADA)A key issue are the LNs representing functionsrepresenting functions or equipmentequipment used in power systems.Each LN provides a l
16、ist of wellwell organized and named informationorganized and named information.The LN“XCBR5”“XCBR5”represents the“circuit breaker”number 5 with the data“Pos”“Pos”(Position)and“Mode”.“Mode”.Services defined in IEC 61850-7-2 allow the exchange of this information.Mapping.(Virtual World)LNLNLNLNPosSCSMIEC 61850-8-1TCP/IPNetworkMMSIEC 61850-7-2Serviceslogical device(Bay)ModeXCBR5IEC 61850-7-4 logical node(circuit breaker)IEC 61850-7-4 data(Position)virtualisationReal devices in a substationIEC 61850
