基于MAS的分布式發(fā)電條件下配電網(wǎng)自適應(yīng)保護(hù)的研究.pdf

1、東南大學(xué)碩士學(xué)位論文基于MAS的分布式發(fā)電條件下配電網(wǎng)自適應(yīng)保護(hù)的研究姓名：唐斐申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電力系統(tǒng)及其自動(dòng)化指導(dǎo)教師：陸于平郭偉20100119AbsWactAbstractWiththepromotionofrenewableenergy，DistributedGeneration(DG)hasbecome鋤importantformofpowersotlroceHoweverhighpenetrationofDGwou

2、ldchangethepresentdistributionnetworkstructure，aswellasthevaluedirectionanddistributionofshortcircuitItbringsmultipleimpactonthetraditionaldistributionnetworkprotectionBaseontheprotectioncoordinationsensitivityandreclose

3、rthispaperprovidesadetailedanalysisontheinfluenceofDGtotheexistingprotectionsystems，inviewofthelocationofDGintroductionandfailureoccurringunderdifferentcircumstancesTheanalysisindicatesthatitisdifficultforprotectiontoope

4、ratecorrectlyrelyingonlyonlocalelectricinformationTherefore，thestudyofwiderangeinformmion—basedDGprotectionstrategybecomesessentialtothispaperGiventhattheexistingdistributionnetworkprotectionconfigurationandfaultlocation

5、algorithmsaredi硒culttoapplyundertheDGconditionsAccordingtothestructureandfeatureofDistributedGenerationSystem，thispaperproposesanewdistributeddecision—basedfaultlocationalgorithmFirStlyassociatedregionisdeterminedontheba

6、sisofnetworksegmentationThenbyusingtheinformationattheboundarynodeofassociatedregionpreliminarylocationforfaultisimplementedFinally，basedonthenodeconnectivityoffaultrelatedregion，faultlocationwithhighprecisionisachievedb

7、ytheinformationatthetwoendingnodesofeachsectionForusingstaticregiondivision，whichcallbedynamicallydressed，inthisalgorithm，itreducesrestrictionforrealtimeperformanceandhascertainadaptabilityforscarcityofIEDinformationandc

8、hangesofpowernetworkstructureresultfromswitchingofDGAdditionally，bothfirstandsecondaryfaultlocationsaleclearinprincipleandhavefeaturesoflittleinformationandlowcomputationalcomplexityMAShascommunicableandasynchronousopera

9、tionalcharacteristics，anditslayeredarchitectureCanprovidegoodsupporcforeachlEDparallelcomputingintheprotectionsystemAtthesametime，IEC61850StandardwithseamlessconnectivityfeatureCallrealizerapidmteractionandreliablecommun

10、icationbetweenIEDintheprotectionsystemnlispapercombinestherelativeconceptsofM_ASandIEC61850Standard，anddevelopsthestudyofnewDGprotectionsystemfromtheprospectoffunctionandcommunicationItestablishesasystemofmultiagentprote

11、ctionmodel，elaboratesitslayeredarchitecture，makesananalysisoffunctionandcompositionofeachlevel，andconductsamodulardesignItintroducestheEthernettechnologyintotheprotectionsystemestablishescommunicationnetworkarchitecturea

12、nddiscussesthecommunicationservicemodelandinformationmodeIofthevariousdevicesinthenetworkindetailReliabilityisanimportantcriteriontomeasuretheprotectionsystemThispaperusesMarkovstatemodelaswellastherelevanttechnicalindex

13、ofreliabilitytoanalyzethereliabilityofthedistributeddecisionbasedsystemunderdifferenttypesofnetworkneresultshowsthatcomparetocentralizedecisionbasedsystem，ithasahigherreliabilityKeyword：DG；FaultLocation；MAS；IEC61850；Reli