雙饋電機(jī)風(fēng)力發(fā)電系統(tǒng)控制策略研究.pdf

1、青島大學(xué)碩士學(xué)位論文雙饋電機(jī)風(fēng)力發(fā)電系統(tǒng)控制策略研究姓名：關(guān)中杰申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：控制理論與控制工程指導(dǎo)教師：趙克友20080607AbstractItisofgreatsignificancetodevelopandutilizewindpowerwhichisnotonlyrenewablebutalsowithoutpollutionwhenenergysourcescarcityandenvironmentpollutio

2、narcgettingmoreandmoreserious11圮windpowergenerationtechnologyhasbecometheresearchhotspotofmanycountry’SscholarsWindpowergenerationtechniqueisimprovedgreatlythankstothatmoreandmorecountriesallovertheworldpayattentiontoitW

3、iththeincreasingscaleofwindpowergenerationsystem，theinvestigationonwindpowergenerationtechniquehasbeenfocusedonimprovingtheoperationefficiencyofwindpowergenerationForthisreason，thetechniqueofvariablespeedconstantfrequenc

4、y(VSCF)operationwhichiscapableofcapturingthemaximwindpowerbecomesresearchhotspotDoublyfedinductiongeneratorandPermanentmagnetSynchronousmachinearecommonlyusedinvariablespeedwindenergygenerationunitsaboveIMWWiththeoperati

5、onandcontrolofallAcexcitedVSCFwindpowergenerationsystemastheresearchsubjectthisdissertationmadecompletestudybytheoreticalanalysisandsimulationThemainresearchcontentsinclude：theoperationtheoryofdoublyfedinductiongenerator

6、(DFIG)，themaximwindpowercaptureoperationprinciple，reactiveoutputpowercontrolofDFIGusingdirecttorquecontrol(DTC)technology，andtheUseofDirectTorquetechnologythinking，anewnoloadgridconnectionControlstrategyisproposedThemain

7、workofthispaper：i)UsingMATLAB／simulinkestablishmentofawindturbinemodel，windspeedmodelandthestatorfluxorientedvectorcontrolsystemofDFIGJointdebuggingthetwomodelsestablishedadoublyfedwindpowercontrolsystemmathematicalmodel

8、UsingMATLAB／simulinksimulationplatform，thedoublyfedwindpowergenerationsystemfromlowwindspeedtohighwindspeedoperationprocesswasstudiedandtorqueobservationandfuzzycontrolmethodswereachievingthegreatestwindenergytrackingii)

9、Discussedhowtoachieveadirecttorquecontrol(DTC)fordoubly—fedwindpowersystemreactiveregulationandgiveareasonablesolutionIntheMATLAB|simulinksimulationplatformthesimulationtestsweredone，andachievedagoodsimulationresultsiii)

10、Withthesinglewindturbinecapacityincreases，thewindfieldsoftenarebuiltinsparselypopulatedregiontheendofapowersupplynetworktheabilitytowithstandimpactisrelativelyweakwhenthewindfieldisconnectedtothegrid，PowerGridwillbequite

11、bigblowsInordertoavoidthissituation，appropriategridconnectiontechnologyisnecessaryWiththehelpofDirectTorqueControl(DTC)technologythinking，anewnoloadgridconnectionControlstrategyisproposedDFIGrotorfluxisadjustedtoconnect鰣