基于IEC61850标准的线路保护装置的研究

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1、西安科技大学硕士学位论文基于IEC61850标准的线路保护装置的研究姓名：韩法玲中请学位级别：硕士专业：电力系统及其自动化指导教师：负保记；付周兴2011Subject:ResearchofLineProtectionDeviceBasedonIEC61850Specialty:PowerSystem&AutomationName:HanFaling(Signature)Instructor:YunBaoji(Signature)FuZhouxing(Signature)ABSTRACTWiththefo

2、rmalpromulgationofthestandardIEC61850andtheconstantdigitalsubstationcommissioning,theresearchonthenewdigitalprotectiondevicehasbecomeamust.Inthisthesis,thesubjectinvestigatedisthesubstationapplicationofnewdigitallineprotectiondevicecompliedwithIEC61850sta

3、ndard.AndafurtherresearchonthemodelingofIEDprotectionandimplementationisalsocarriedout.Firstly,thethesisanalysesthearchitectureofthestandardIEC61850,focusonthedigitalsubstationbasedonIEC61850hierarchicalstructureandthesubstationIEDcommunicationconfigurati

4、ondescriptionlanguage,basiccommunicationstructureforsubstationandfeederequipment,andspecificcommunicationservicemapping(SCSM)・MappingtoMMS.Secondly,thethesissummarizesthestandardIEC61850-basedIEDmodelingstepsandengineeringmodeling,modelingoflinespacingIED

5、substationconfigurationdescriptionlanguage.AnditcreatesthelinespacingtotheconfigurationfileIEDbasedonthestructureandsyntax.Again,thepapersimulatesthedataoutputfunctionofthemergingunit,thecurrentandvoltagevaluebysimulationoffaultlineissenttolineprotectiond

6、eviceasthedatasourcetoprotectiontaskoflineprotectiondevice,thenthesoftwaredesigniscompletedandtherealizationofdataoutputisverifiedbytheWircSharkmessageanalysissoftware.Finally,theanalysisoflineprotectiondevicesandthedesignofthesoftwaretechnologysolutions,

7、combinedwithMMS-EASE-LITEpackage,completedlineprotectiondevicesoftwaredesignwhichwasinlinewithIEC61850standard,andwasverifiedthefunctionofsoftwarebydebugtools.LineProtectionDeviceMergingUnit1绪论1.1研究的背景及其意义1.1.1变电站自动化系统的发展变电站是电力系统中不可缺少的重要环节，它担负着电能转换和电能重新分配

8、的繁重任务，对电网的安全和经济运行起着举足轻重的作用⑴。1993年，变电站自动化理论最初在国内提出。20世纪90年代初，随着计算机技术、网络通讯技术的飞速发展，出现了分布式变电站自动化系统，系统按变电站的控制层次和对象设置全站控制(站控层，又称变电站层)和就地单元控制(间隔层)的二层式分布控制系统结构⑵。但是，由于缺乏统一的标准，常规变电站综合白动化系统存在着信息难以共享、设备Z间不具备互操作性、系统的可扩展性差、系统可靠性受