无功功率补偿-中英文资料外文翻译文献本科本科毕业论文.doc

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1、无功功率补偿毕业论文中英文资料外文翻译文献HARMONICDISTORTIONANDREACTIVEPOWERCOMPENSATIONINSINGLEPHASEPOWERSYSTEMSUSINGORTHOGONALTRANSFORMATIONTECHNIQUEW.Hosny(1)andB.Dobrucky(2)(1)UniversityofEastLondon,England(2)UniversityofZilina,SlovakRepublicABSTRACTThispaperreportsanovelstrategyf

2、oranalysingasinglephasepowersystemfeedinganon-linearload.Thisstrategyisbasedonanewtheorytotransformthetraditionalsinglephasepowersystemintoanequivalenttwo-axisorthogonalsystem.Thissystemisbasedoncomplementingthesinglephasesystemwithafictitioussecondphasesothatboth

3、ofthetwophasesgenerateanorthogonalpowersystem.Thiswouldyieldapowersystemwhichisanalogoustothethreephasepowersystembutwiththephaseshiftbetweensuccessivephasesequaltoл/2insteadof2л/3.ApplicationofthisnovelapproachmakesitpossibletousethecomplexorGaussdomainanalytical

4、methodinasimilarwaytothewellknownmethodofinstantaneousreactivepowerforthreephasepowersysteminstigatedbyAkagietalin1983.Thus,forthefictitioustwo-axisphasepowersystem,theconceptofinstantaneousactiveandreactivepowercouldbeinstigated.Moreover,theconceptofinstantaneous

5、powerfactorcouldbedefined.Thenovelstrategyofpowersystemanalysisoutlinedinthispaperisappliedtoasinglephasepowersystemfeedinganon-linearloadinconjunctionwithanactivepowerfilter.Thelatterservesthepurposeofcompensatingforeitheroftheinstantaneousreactivepowerortheharmo

6、niccurrentdistortioninthesinglephasepowersystemunderinvestigationorforcompensatingofboth.Experimentalresultsdemonstratedtheeffectivenessofthenovelsinglephasepowersystemanalysisreportedinthispaper.Keywords:singlephasepowersystems,orthogonaltransformationtechnique,h

7、armonicdistortionandreactivepowercompensation1INTRODUCTIONInthissectiontheorthogonaltransformationtechniqueappliedtoasinglephasepowersysteminstigatedbyAkagietal,reference[1],isdescribed.Byadoptingthistechniqueexpressionsforthereferencecurrentsusedinanactivepowerfi

8、lterforthecompensationofharmonicdistortionorreactivepowerorboth,arederived.Considerasinglephasepowersystemwhichisdefinedbyitsinputvoltageandinputcurrent