电气工程及其自动化毕业论文

MATLABSimulinkMATLABR2009bSimPowerSyetem1Simulink2MATLABAbstractWiththerapiddevelopmentofpowerindustry,thescaleofpowersystemisincreasinglylargeandcomplex,allkindsoffault,topowerplantsandpowerplantsandusersinavarietyofpowerequipmentsafetythreat,andislikelytoleadtotheexpansionofpowersystemaccident,fromthetechnicalandsafetyconsideringdirectelectricityexperimentwascarriedoutonthepossibilityisverysmall,urgeelectricpowersimulationareusedtosolvetheseproblems,accordingtothepowersupplysystemofpowergridpowercircuitmodel,asaresult,paperuseMATLABdynamicsimulationsoftwareSimulinkhassetupasimulationmodelforthesingle-infinitepowersystem,cansatisfytheneedsoftherunningofafaultmayencounteravarietyofways.PaperR2009bwithMATLABtoolboxpowersystemasaplatform,throughSimPowerSyetemsetuppowersystemintheoperationofthecommonsingle-infinitysystemmodel,designthevariouskindsofshort-circuitgroundfaultoccursinthesystemandsimulationresultsoffaultremoved.Themainworkis:(1)Buildingthissimulationsystemofsingle-infiniteunderSimulink(2)FaultsimulationtestanalysisofsystemThroughexamples,ifthismethodtothepowersystemfaultdiagnosis,fastfaultdetectionanddiagnosis,automaticforimprovingthestabilityofpowersystemhasimportantsignificance.keywordsSingleinfiniteSimPowerSyetemShortcircuitfaultsWavelettransform................................................................1...........................................11.1...........................................11.2...........................................1MATLAB...................................32.1.........................................32.2MATLABSimPowerSystem...................................32.3.........................................42.4...............................................5.................................53.1.........................................63.1.1......................................63.1.2......................................................63.1.3......................................83.2...........................................9SimulinkSimPowerSystem...........................124.1................................................124.2................................................134.21....................................134.22()........................174.3....................................184.4..........................................................22..................................................22...........................................................24..............................................................2511.11.221236%~7%23%~24%70%70%11s25s3123MATLAB[1]Matlab/Simulink2.1(,,),,,,matlb,2.2MATLABSimPowerSystemMATLABMatrixLaboratoryMathworkeMATLABMATLABMATLABMATLABMATLAB304[2]MATLABSimulinkSimulinkPSBPowerSystemBlocksetMatlab6.0SPSSimPowerSystemSimPowerSystemHydro-Quebec'MATLABMATLABSimPowerSystemMATLAB13SimPowerSystemSimMechaniesSimulinkSimPowerSystem2.3,,5()matlb,2.4MatlabElectricalSources()Elements()PowerElectronics()Machines()Connectors()Measurements()ExtraLibrary()Demos()Powergui(graphicaluserinterface)63.13.1.11233.1.2PmP1Pma03.2'k73.13.2PIPII0a-PIIbbPmPIIb00-PIIccmaxccPIIcPIIIemaxePmPIIIeNePIIIeffNemaxfPmPIIIf8-PIIIfekkPm=kIIIPminkPmPIIINmin-PIIIkfk3.1cPIIIPIII'k'k'kPmPIII3.2MATLABode45ode233.1.312349Xl/2XlXlXc/2Xc5P-PIIPIIIPIIPT-PIII67**3.210[7]3.1PPsinmUZEZmEUmatlab0.1s0.55s()113.2matlab0.1s0.55s123.3SimulinkSimPowerSystemSimulinkSimPowerSystemSPS4.1MATLABSIMULINK(SimPowerSystems)SIMULINKSIMULINK131Powerlib1ElectricalSourcesThree-PhaseSource2ElementsThree-PhaseParallelRLCLoadRLCThree-PhaseBreakerThree-PhaseFaultThree-PhaseSeriesPLCLoadPLCThree-PhaseTransformerTwoWindingsThree-PhasePISectionline()3MachinesSynchronousMachinepuStandadExcitationSystemHydraulicTurbineandGovernor4powergui2SimulinkSimulinkCommonlyUsedBlocksConstant)BusSelectorTerminator()Scope()Ground4.24.2114.210.1s144.220.55s24.230.1s4.240.55s1534.250.1s4.260.55s44.270.1s164.280.55s4.2110.1s4.2110.55s170.1s0.99-1.010.55s(Three-PhaseFault)ode23tbPhasors4.22()4.2210.1s4.2220.55s184.2230.1s4.2240.55s4.314.310.1s194.320.55s24.330.1s4.340.55s2034.350.1s4.360.55s44.370.1s214.380.55s4.390.1s4.3100.55s220.1s0.55s4.4Mtlab0.1s0.55s0.1s0.55sMATLABMATLAB/SimulinkMATLABMATLAB23121)2)HDVC24[1]MATLAB/SIMULINK20089[2]CADMATLAB20086[3]Simulink200911[4]20032[5]19973[6]200012[7]Matlab20054[8].MATLAB/Simulink,20115.[9]..20078.[10].MALAB.20041.25MatlabMATLAB26