外文翻譯-svpwm開(kāi)關(guān)dstatcom對(duì)功率因數(shù)和電壓暫降的補(bǔ)償_第1頁(yè)
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1、英文原文SVPWMSwitchedDSTATCOfPowerFactVoltageSagCompensationBishnuP.MuniS.EswarRaoJVRVithalAbstract：Inapowerdistributionwkofapowerutilityindustrythereactivepowermanagementplaysamajroleinreducingdistributionlossmaintainingcon

2、stantdistributionvoltage.VoltagesourcePWMinverterbasedreactivepowergenerathasfastresponsetoreactivepowerdemhencecanbeusedfpowerfactimprovementvoltagesuppt.WiththeavailabilityofnewgenerationDSPswithinbuilteventmanagermodu

3、lethespacevectPWM(SVPWM)switchingpatternscanbegeneratedeasily.ThispaperproposesSVPWMswitchedDSTATCOMfpowerfactvoltagesagcompensation.ThepaperpresentsthesimulationstudiesonSVPWMswitchedDSTATCOMinpowerfactcontrolmode.Itals

4、ogivesthemathematicalmodelofDSTATCOMinvoltagesagcompensationmode.ThesimulationresultsshowthatthespacevectPWMstrategycanbeusedfpowerfactvoltagecompensation.FurtherexperimentalstudiesonSVPWMswitchedDSTATCOMhavebeenpresente

5、dtovalidatethecontrolphilosophy.IndexTerms：DSTATCOMDSPcontrolReactivepowercompensationSVPWMVoltageSag.I.INTRODUCTIONTheindustrialloadswithlowpowerfactcauseexcessiveloadingofthedistributiontransfmerlowvoltageatthepointofc

6、ommoncoupling(PCC).Thedistributionstaticsynchronouscompensats(DSTATCOM)canhelpingeneratingleadingreactivevoltampere(VAR)atthePCCavoidtheproblemsassociatedwiththelowpowerfact[1].Theavailabilityofhighpowerselfcommutatingse

7、miconductdevicesnewcontrolphilosophieshighperfmancecomputingelementslikemicrocontrollerDSParerevolutionizingtheelectricpowertransmissiondistributionsystems.ShuntconnectedPWMconverterbasedDSTATCOMaregainingpopularityfimpr

8、ovingpowerfactpowerqualityinindustrialpremises.InadditiontothereactivepowercompensationtheDSTATCOMcanalsoactasactivefilterloadconditionertoimprovethepowerquality.DSTATCOMaregenerallyusedfreactivepowermanagementindistribu

9、tionwkwithhighlyfluctuatingloadslikearcfurnacerollingmillshighpowerinductionmotsinductionmachinebasedwindelectricgeneratvoltageregulationindistributionwketc.supplyreactivepowerofthesamemagnitudebutofoppositesign.Thusinsu

10、chacasethereactivepowerdrawnfromthesourceiszero.HenceifreactivepowersuppliedbythesourceismonitediscontrolledinclosedlooptomaintainitatzerothenthedesiredobjectiveoffullVARcompensationunitypowerfactcanbeachieved.TheDSTATCO

11、McanoperateinvariableVARgenerationpowerfactmode.ThecontrolblockdiagramofDSTATCOMinreactivepowergenerationmodeisshowninFig.3.ThethreephasePCCvoltages()sourcecurrents(saVsbVscVsai)aremeasuredareconvertedtoacontrollevelsign

12、alsbyusingPTSCTSsbiscisignalconditioningcards.Thesethreephasevoltagecurrentsignalsatcontrollevelareconvertedintoequivalentaxis(twoaxisstationaryreferenceframe)???components().Thecurrentvoltagesignalsin(twoaxessi?si?sv?sv

13、????stationary)frameareconvertedtodq(twoaxessynchronouslyrotatingreference)frame.Insynchronouslyrotatingreferenceframethedirectaxiscurrentcomponentisproptionaltoactivepowerquadratureaxiscurrentcomponentisproptionaltoreac

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