变速恒频双馈发电独立电源的励磁控制策略

,,(,710072):,,,,,:;;;;:TM310:AExcitationControlStrategyofStandOaloneVariableOspeedConstantOfrequencyDoublyOfedGeneratorZHANGXingOguo,LINHui,YANGKe(CollegeofAutomation,NorthwesternPolytechnicalUniversity,Xian710072,ShanxiProvince,China)Abstract:ConsideringthecharacteristicsofstandOalonevariableOspeedconstantOfrequencydoublyOfedgen2erator,thecontrolmodelandcontrolstrategywaspresented,foravariableOspeedconstantOfrequency(VSCF)doublyOfedwithACexcitedrotorbasedonthestatorfieldorientedvectorcontrol,thesteadystateanddynamicperformancewasdiscussed.Theresultofsimulationshowsthatfrequencyandphaseofthestatorvoltageandcurrentareindependentoftherotorspeedanditsinstantaneousposition,usingvecterorientedcontrol,afulldecouplingbetweenthemoverandthegeneratorispossible.Keywords:variableOspeedconstantOfrequency;doublyOfed;generator;excitations;controlstrategy:(04F53036):(1964-),,,Email:[e-mail],,(VSCFDFG),,[1],,;,[2],,,,MATLAB,,1,,,,,:;;1.1[3],dq,,,uds=Dds-1qs-idsRsuqs=Dqs+1ds-iqsRsudr=Ddr-2qr+idrRruqr=Dqr+2dr+iqrRr(1)3ELECTRICDRIVE2008Vol.38No.12008381ds=-Lsids+Lmidrqs=-Lsiqs+Lmiqrdr=-Lmids+Lridrqr=-Lmiqs+Lriqr(2):udsuqsudruqr=L1LsDLm-1Lm-1LsL1LmDLm-DLm2LmL-2Lr-2Lm-DLm2LrLidsiqsidriqr(3):L=-DLs-Rs;L=DLr+Rr;s,r,q,dqd;u;i;R;Ls,Lr,Lm;Dd/dt;1,r,2,2=1-r=s1,snpJ,Tem=1.5npLm(iqsidr-idsiqr)(4)D=(Tmec-Tem)/J(5):Tmec1.2,,,,,,,,,,,,7:,,,,,,,,400Hz,1,s,EÛs=UÛs+IÛsRs,Rs,EÛs=UÛs,=0,90(),(),1Fig.1VectorsofACpowerexcitingdq,,ds,UÛsqds=sqs=0(6)dq():uds=0uqs=Us(7)dqabc,dqids=Issiniqs=Iscos(8):Is,(3)(7)(8),,D=0,idr=(Us+1LsIssin+RsIscos)/(1Lm)iqr=(1LsIscos-RsIssin)/(1Lm)(9)udr=Rridr+sLmiqs-sLriqruqr=Rriqr-sLmids+sLridr(10)22.1,42008381,:2,(),,[4]2Fig.2StandOalonepowersupplyproducedbyVSCFgenerator2.2,,,,,3()PAM()PWM()SPWM()PWM4SPWM,,SPWM1),,2)SPWM,,,3),SPWM,,,,SPWM,2.3SPWM3SPWM3V1V66,Us(Ed),Us/2(Ed/2)3SPWMFig.3MaincircuitofVSVFconverterforSPWM(SPWM),,n,,,,n,SPWM3,:Rs=4.70,Ls=0.506H,Rr=4.178,Lr=0.511H,Lm=0.494H,np=2,115V,,400Hz,P=30kW:5,:2008381,0.8s,0.85s45674Fig.4Equivalentfrequencywaveformofrotorspeed5Fig.5Threephasevoltagewaveformoftransducer6Fig.6Threephasecurrentwaveformofstator0.8s,0.8s,0.85s47,0.05s,115V,400Hz,7Fig.7ThreephaseACvoltagewaveformofstator7a,7a7b,,0.9s4,dq,,1,,,.[J].,2002(12):5-82,,,.[J].,2005,20(2):16-193,,,.[J].,1996,24(9):87-904GortiBV,AlexanderGC,SpeeR,etal.AFuzzyControllerforTerminalQuantityRegulationinaDoublyOfed,StandOa2loneGeneratorSystem.IndustryApplicationsConference,ThirtyOfirstIASAnnualMeeting,IAS1996,ConferenceRe2cordofthe1996IEEE,1996,3:1701-1708:2006206205:200720721162008381,: