Single-phase ac impedance modeling for stability of integrat

Single-phase ac impedance modeling for stability of integrat

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时间:2019-07-03

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1、Single-PhaseacImpedanceModelingforStabilityofIntegratedPowerSystemsJingHuang,StudentMember,IEEE,KeithCorzine,Member,IEEEandMohamedBelkhayatthesourceimpedance(lookingbacktotheleft)andloadAbstract—Todate,theonlypowersystemstabilityrequirementimpedance(lookingtoth

2、eright).Theinjectioncurrentmaythatcanbedecomposedorquantitatively"flowed"downtoconsistofsuppressedcarriersignalsfromalinearamplifierascomponentdesignrequirementsareimpedancebased.Impedancedetailedinpreviousresearch[5].Theinjectionsignalsmaybasedrequirementshave

3、beenadvancedforbothdcandalsocomefrompowerelectronicchoppercircuitsorfromanthree-phaseacbutnoneforsingle-phaseacinterfaces.Whatareultimatelyneededareuniversalstabilityrequirementsthatareexternallyconnectedelectricmachine[6].Comparedtodcapplicabletodc,single-phas

4、eac,andthree-phaseacinterfacesasimpedancemeasurement,thesetechniquesarerelativelynew.wellasameasurementtoolwhichcanbeusedtoenforcetheAnevennewerconceptistheuseofapowerelectronicchopperrequirementsatallinterfaceswithoutchangingthefundamentalcircuitwhichinjectsal

5、ine-to-linecurrentdisturbanceforstructureoftheimpedancemeasurementdevice.Theseadvancedthree-phaseimpedancemeasurement[7].Inanycase,thetechniquesshouldbeapplicabletoallvoltagelevelscurrentlyinmeasuredimpedancesareinthed-qsynchronousreferenceusebynavysystems,incl

6、udingtheanticipated13.8kVsystems.Thispaperlaysthegroundworkforuniversalstabilityframewherethesystemmodelcanbelinearizedaroundanrequirementsbyprovidingtechnicaldetailoftheimpedanceoperatingpoint[4-7].analysisofthesingle-phaseacsystem.ModeldevelopmentandTheneedfo

7、rstabilityassessmentofdcandthree-phaseacsimulationofimpedanceextractionarepresented.systemsfornavalapplicationsisreadilyunderstood.However,someportionsofthesystemcontainlow-voltagesingle-phaseIndexTerms—single-phaseac,impedancemeasurement,acwhichcouldalsobeunst

8、able.Impedancemodelinginthisstability,small-signalmodel.areaisparticularlyunique,sincesingle-phaseacdoesnothaveaconstantoperatingpointaswithdcanddoesnothaveanI.BACKGROUNDobv

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