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Research on the Impact of Distributed Generation on Relay Protection and Its Standards

简介：Distributedgeneration(DG)willchangecharacteristicsofpowerflowandfaultsoftraditionaldistributionnetworkaswellasthenetworkoperationmode,especiallytheoperationofrelayprotectionandautomaticcircuitbreakerre-closing.Inthispaper,thecharacteristicsandinfluencesofseveraltypesofdistributedgenerationandconnectionpattern,relayprotectionandautomaticcircuitbreakerre-closingareanalyzed.Standardsofrelayprotectionwhendistributedgenerationaccesstodistributionnetworkarediscussedaswell.
标签： DISTRIBUTED GENERATION distribution NETWORK RELAY

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Research on Influential Factors in Electric Vehicle Industry Based on Baidu Index

简介：Withthearrivaloftheeraofpersonalautoconsumption,residentsareenjoyingtheconvenienceoftravel;however,problemssuchasenvironmentalprotection,transportation,purchasingrestrictionareplaguingconsumersatthesametime.Asaneffectivealternativetoconventionalvehicle,electricvehicleinrecentyearshasbeenwidelyconcernedduetoitscharacteristicsofenergysavingandenvironmentalprotection.ToidentifythekeyinfluentialfactorsinthedevelopmentofEVindustryinChinaisconducivetoformulatingreasonableindustrialdevelopmentstrategyandmeetingmarketdemandofconsumers.Inthispaper,thekeyfactorsinthedevelopmentofEVindustryareobtainedbyanalyzingBaiduIndexineachtimeperiod.
标签：汽车产业电动汽车影响因素百度汽车消费环境保护

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简介：Towardstheanalysisofthedevelopmentalsituationofwindpowergenerationandelectricvehicles,anovelideaforstabilizingthefluctuationofwindfarms’outputbytheuseofbatteryswappingstationsofelectricvehiclesisputforwardinthispaper,toeffectivelyalleviatetheimpactofgrid-connectedoperationofwindfarmsonthepowersystemwhilepromotingthefieldoperationofchargingandbatteryswappingstations.Abatteryswappingstationistreatedasacapacity-variableenergystoragepowerstation,connectedtotheoutputterminalofawindfarm.AcombinedoperationmodelforwindfarmandbatteryswappingstationisestablishedbasedontheMATLAB/SIMULINKsimulationplatformandthecontrolstrategyisproposedfortheoperationofbatteryswappingstations.Thesimulationresultsshowthattheintroductionofabatteryswappingstationcaneffectivelystabilizethefluctuationofwindfarmoutput.
标签：电动汽车电池风电场联合作战 SIMULINK MATLAB 操作模式

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Research and Implementation of Multi-Point Automatic Synchronization Based on Active Frequency Tracking Control

简介：Reliableconnectionofturbinegeneratorsincomplexmainwiringstructurestothepowergridthroughapluralityofswitchesisanewkeyproblem,referredtoasmultipointautomaticsynchronization(MPAS),inautomaticcontrolsystems(ACS).Inthispaper,differentmethodsofvoltage-frequencyandphase-differencecontrolareanalyzed,andacontrolmethodologybasedonactivefrequencytracking(AFT)ispresented.Throughtheestablishmentofthemulti-pointautomaticsynchronizationmodelandtheanalysisofthegovernortransferfunctionwiththiscontrolmethod,theimportantcontrolparametersandautomaticprocesscontrolsequencearesummarized.Thecorrectnessandeffectivenessofthedesignedmethodologyareinspectedthroughon-sitetesting,andtheimportanceofthefunctionandselectionofparametersarealsoexplored.
标签：跟踪控制自动同步动频率自动化控制系统涡轮发电机布线结构

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