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Matlab(1.0300242.030001)Matlab/Simulink,MatlabDynamicSimulationofDoubiy-fedWindPowerSystemBasedonMatlabLiuFangyuLiYanchun(TaiyuanUniversityofTechnology,Taiyuan030024)AbstractTakingdoubly-fedwindpowersystemasanobject,thepaperpresentsthedynamicmodelofdoubly-fedwindpowersystem,includingwindspeed,windmill,doubly-fedgeneratorandcapacitor.ThemethodandprocessofthedynamicsimulationbasedonMatlab/Simulinkarediscussedindetail,andthedynamicstabilityonthewind-farmconnectedtopowersystemisanalyzed.Atthesametime,thethesisstudieshowtoimprovedynamicstabilityofwindpowersystemaftertheshort-circuitfaultisoccurred.Keywordswindfarmdoubly-fedwindpowersystemMatlabdynamicsimulation1,[1]MATLAB2[2]2.1VVWGVWRVWNV=+++12.2TW3011020wNWPNVQTCAP−⎧⎪⎪=⋅⋅⋅⋅⋅⎨Ω⎪⎪⎩wmmwoutoutwVVVVVVV≤≤2wTVwVinVoutρ2wARπ=wRNNPPC2.31()mwmwdTTTdtτ=−3wτwTmT2.4[5]dsqsqsdsdrdrqrrdrqrqrqrrdrUUdUsrIdtdUsrIdtψψψψψψ=−⎧⎪=⎪⎪⎪⎨=−+⎪⎪⎪=−+⎪⎩4dsssdsmdrqsssqsmqrdrrrdrmdsqrrrqrmqsXIxIXIxIXIxIXIxIψψψψ=+⎧⎪=+⎪⎨=+⎪⎪=+⎩5'01[(')]'msssrrdssxdEjUrjsEEjXxIdtXTUjxIE⎧−−−−⎪⎨⎪=+⎩6drUqrUeTdqdrUqrU3[3,4]1∆t14MatlabSSimulink1M2M3M4T∆,2233SSimulinkSSimulinkSSimulinkS54220kV11-210210600kW100MVA600kW690Vx1=0.09985r1=0.00833x2=0.10906r2=0.00373xm=3.54708sN=-0.004xT=0.033Nϕcos=0.89460MWPFCC=29.7%/3xr=4m/s25m/s15m/s5.116m/s1s5s6m/s10s5856785.210t=0.2s70.14s9-10910910/1xr=11121112rx/6Matlab/SimulinkMatlabSSimulink572230-3530-355h34-35303304-354PSpice[1],,.8KIGBT[J].,2002,(2).[2].PSpice[M].:,2004[3],,.8KIGBT[J].,2006,(5).[4],.CMOS[J].,2005,(4).48[1].[D].,2004.[2].[D].,2004.[3].,[],2004.10.[4]VladislavAkhmatov,Variable-speedWindTurbinewithDouble-FedInductionGenerators,PartI:ModelinginDynamicSimulationTools,WindEngineering.2002.26,(2).[5]FeijooAE,CidrasJ.Modelingofwindfarmsintheloadflowanalysis[J].IEEETransonpowersystems.2000,15(1):110-115.