繼電保護的評估與測試的虛擬環(huán)境-畢業(yè)設(shè)計外文資料翻譯

1、第39頁附錄附錄：外文資料翻譯：外文資料翻譯外文資料原文：外文資料原文：AVirtualEnvironmentfProtectiveRelayingEvaluationTestingA.P.SakisMeliopoulosGegeJ.CokkinidesAbstract—Protectiverelayingisafundamentaldisciplineofpowersystemengineering.AtGegiaTechweoffe

2、rthreecoursesthatcoverprotectiverelaying:anundergraduatecoursethatdevotesonethirdofthesemesteronrelayingagraduatecourseentitled“PowerSystemProtection”athreeahalfdayshtcoursefpracticingengineers.Tomaximizestudentunderstin

3、gtrainingontheconceptstheytechnologyassociatedwithprotectiverelayingwehavedevelopedanumberofeducationaltoolsallwrappedinavirtualenvironment.Thevirtualenvironmentincludesa)apowersystemsimulatb)asimulatofinstrumentationfpr

4、otectiverelayingwithvisualizationanimationmodulesc)specificprotectiverelaymodelswithvisualizationanimationmodulesd)interfacestohardwaresothattestingofactualrelayingequipmentcanbeperfmed.Werefertothissetofsoftwareasthe“vi

5、rtualpowersystem.”Thevirtualpowersystempermitstheindepthcoverageoftheprotectiverelayingconceptsinminimumtimemaximizesstudentundersting.Thetoolisnotusedinapassiveway.Indeedthestudentsactivelyparticipatewithwelldesignedpro

6、jectssuchasa)designimplementationofmultifunctionalrelaysb)relaytestingfspecificdisturbancesetc.Thepaperdescribesthevirtualpowersystemganization“engines”suchassolvervisualizationanimationofprotectiverelaysetc.Italsodiscus

7、sestheutilizationofthistoolinthecoursesviaspecificapplicationexamplesstudentassignments.IndexTerms—Algebraiccompanionfmanimationrelayingtimedomainsimulationvisualization.I.INTRODUCTIONRELAYINGhasalwaysplayedaveryimptantr

8、oleinthesecurityreliabilityofelectricpowersystems.Asthetechnologyadvancesrelayinghasbecomemesophisticatedwithmanydifferentoptionsfimprovedprotectionofthesystem.Itisindisputablethatrelayinghasmadesignificantadvanceswithdr

9、amaticbeneficialeffectsonthesafetyofsystemsprotectionofequipment.Yetbecauseofthecomplexityofthesystemmultiplicityofcompetingfactsrelayingisachallengingdiscipline.Despitealloftheadvancesinthefieldunintendedrelayoperations

10、(misoperations)dooccur.Manyeventsofoutagesblackoutscanbeattributedtoinappropriaterelaying第41頁animationvisualizationobjects.Thevirtualpowersystemhasthefollowingfeatures:1)continuoustimedomainsimulationofthesystemunderstud

11、y2)abilitytomodify(fault)thesystemunderstudyduringthesimulationimmediatelyobservetheeffectsofthechanges3)advancedoutputdatavisualizationoptionssuchasanimated2D3Ddisplaysthatillustratetheoperationofanydeviceinthesystemund

12、erstudy.Theabovepropertiesarefundamentalfavirtualenvironmentintendedfthestudyofprotectiverelaying.Thefirstpropertyguaranteestheuninterruptedoperationofthesystemunderstudyinthesamewayasinaphysicallabaty:onceasystemhasbeen

13、assembleditwillcontinuetooperate.Thesecondpropertyguaranteestheabilitytoconnectdisconnectdevicesintothesystemwithoutinterruptingthesimulationofthesystemtoapplydisturbancessuchasafault.Thispropertyduplicatesthecapabilityo

14、fphysicallabatieswhereonecanconnectacomponenttothephysicalsystemobservethereactionimmediately(e.g.connectinganewrelaytothesystemobservingtheoperationoftheprotectiverelayinglogicapplyingadisturbanceobservingthetransientsa

15、swellastherelaylogictransientsetc.).Thethirdpropertyduplicatestheabilitytoobservethesimulatedsystemoperationinasimilarwayasinaphysicallabaty.Unlikethephysicallabatywhereonecannotobservetheinternaloperationofarelaymotetc.

16、thevirtualpowersystemhasthecapabilitytoprovideavisualizationanimationoftheinternal“wkings”ofarelaymotetc.Thiscapabilitytoanimatevisualizetheinternal“wkings”ofarelayaninstrumentationchannelanyotherdevicehassubstantialeduc

17、ationalvalue.ThevirtualpowersystemimplementationisbasedontheMSWindowsmultidocumentviewarchitecture.Eachdocumentobjectconstructsasinglesolverobjectwhichhlesthesimulationcomputations.Thesimulatedsystemisrepresentedbyasetof

18、objects—onefeachsystemdevice(i.e.generatsmotstransmissionlinesrelaysetc).Thedocumentobjectcangenerateanynumberofviewwindowobjects.Twobasicviewclassesareavailable:a)schematicviewsb)resultvisualizationviews.Schematicviewob

19、jectsallowtheusertodefinethesimulatedsystemconnectivitygraphicallybymanipulatingasinglelinediagramusingthemouse.Resultvisualizationviewsallowtheusertoobservecalculatedresultsinavarietyofways.Severaltypesofresultvisualiza

20、tionviewsaresupptedwillbediscussedlater.Fig.1illustratestheganizationofdeviceobjectswksolverviewobjectstheirinteractions.Thewksolverobjectisthebasicenginethatprovidesthetimedomainsolutionofthedeviceoperatingconditions.To