多源低压微电网建模及控制方法的研究

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1、山东科技大学硕士学位论文摘要ABSTRACTThesimulationstIldyofthemicro-鲥dmodelisallimportantmethodtostudythestableoperationofthemicro—gridsystem．Thisarticleistoanalyzethedigitalandsimulatedmodelofthethreetypesofdistributedmicro—sourcesforthemicrogridsystem，aswellastoproc

2、eedthesimulatedtestwitllcalculationforthelowvoltagemicrogidbasedonthesethreetypesofmicro-sources．Thisthesissummarizedthestudysituationofthemicrogrdinbomdomesticandabroadasstarted,thenstatedtherelativetheoreticalbasementofthemicrogrdincludingtheanalysis

3、ofthearchitecturalfeatureandthecharacteristicofthecell．Secondly,tosetupthesubmodulemodelofthemicro-turbineonbasisofthebasicprinciple，andtOsetupthecompletesimulatedmodelthroughPSCADafterthat．Then,thethreetypesofdigitalmodelofSOFCincludingshort-term，mid-

4、term，long-termweresetupconsideringthebatterytemperature，thechangeofpressureandtheultimatelossoftheSOFCinoperation．AndtosetuptheelectrochemicalsimulationmodelofSOFCinmediumlength．Onbasisofbasicprincipleofthewindpowertechnologyandtheelectromechanics，thed

5、igitalmodelsofthewindspeed，theaerodynamics，theshaftingmoduleandthemagnetoalternatormoduleweresetuprespectively,basedonwhichthesimulatedmodelofthemicrodirectdrivingmagnetowindgeneratorwithconstantspeedandconstantfrequencywassetup．Afterwards，thethesissta

6、tedthefourtypesofcontrollingmethodofthemicro班dincludinghost-guest,equality,comprehensive，andmulti·layer．Byme,aIlsoftheanalysisofthedigitalmodelofthethreephasevoltageinverterunderthedq0coordinatesystem，thethesiswasfollowedbytheanalysisandtheratiocinatio

7、nofPSCADdigitalmodelofthethreetypesofcontrollingmethodsbasedonthesynchronouslyrotatingreferenceframeincludingfixed—valuepowermethod,敏edpowerfrequencymethod,andthedroopmethod,aswellaStheSPWMconl工oUingmethodandthedesigncriteriaoftheelectricfilter．Lastly,

8、theabovedistributedmicro—generationmodelWaslinked耐ththe10kV／0．4kVPSCADmicro-gridmodelestablishedwiththereferenceofEUlow-powerdistribution山东科技大学硕士学位论文摘要s仃ucture，whichb血giIlthesiIIlulationmodeloflowpowerIIlicro-鲥dwimInulti—sources．ThesmbM