大容量变换器的光纤CAN通信总线定时方案

ISSN100020054CN1122223öN()JTsinghuaUniv(Sci&Tech),20074712007,Vol.47,No.15ö4117220CAN,,,,(,,100084):2005212226:(19832),(),,:,,E2mail:[e-mail]:,(CAN),CAN,,1Mbös,,,:,:(CAN);;;;:TP393.1:A:100020054(2007)0120017204BittiminginopticalfiberCANcommunicationofhighpowerconvertersZHANGHuaisheng,LIUJianzheng,YUANLiqiang,BAIHua,ZHAOZhengming(StateKeyLaboratoryofControlandSimulationofPowerSystemandLargeGenerationEquipment,DepartmentofElectricalEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:Integrationoftheopticalfiberwiththecontrollerareanetwork(CAN)guaranteestimely,reliabledatatransmissioninthebadelectromagneticenvironmentsofhighpowerconverters.Thecommunicationsystemusesopticalfiberswitha1Mbösbaudrateanddistinctnodecontrollers.ThebittimingandthesynchronizationoftheCANprotocolareanalyzedtodeterminethecommunicationsystembittimingrequirementsforareliablebittimingscheme.BaudErrorRatio(BER)experimentsvalidatethestabilityandfeasibilityofthebittimingscheme.Keywords:controllerareanetwork(CAN);highpowerconverters;opticalfiber;bittiming;synchronization,,(con2trollerareanetwork,CAN),,,,CAN,CANCANCAN,CAN,,1CANCAN1.25MW,6kV,,IöO,,CANCANIöO,,CAN,CAN1)CAN1Mbös,2),3),CPU,CAN:IöOCPU51,CANPHILIPSSJA1000,Basci2CAN;CPUTITMS320LF2407,CANCAN1,CAN1:(A)IöO(B1B2),(C)1CAN2CANCAN:1)();2)2.1CAN3[1]:(SYNC.SEG)(PROP.SEG)(PHASE.SEG,PHASE.SEG1PHASE.SEG2)SJA1000TMS320LF2407,CANTSCL2,SYNC.SEGTSCL,PROP.SEGPHASE.SEG1TSEG1,PHASE.SEG2TSEG22SJA1000TMS320LF24072.2,CAN,CAN,TSJW3TSEG1TSJW,TSEG1TS1TSJW(TSJW),3CAN,CANCANö(CSMAöCD+AMP)[1],,,PROP.SEGTPRS[2],TPRSTP,(1)TP,281()2007,47(1)3CAN,AB1B2,AC30%1Mbös,AB1B2(),500kbösC(),1Mbös,C,B1B2454CB1B25CB1B2C,,B1A,A4,,B1,B2,CAN()C(5),B1B2C,(6),,CAN500kbös4,,CANTfb,,T,T,,,T,,,1CAN()(),:1Mbös,TSJW,1CANLsTSCLTS1TS2TSJWSJA10000.1250.6250.2500.7501.0000.125TMS320LF24070.1000.5000.4000.6001.0000.200CAN,:PCA82C250TD=150ns(85)[3],SJA1000TSD=26ns[4]TBUS=106ns[5]TP=2(TBUS+TD+TSD)=564ns.C,,,TP,TP=TBUS+TD+TSD=282ns.C,,TP[2][1],TS1MAX{TSJW+TP,TS2}.(2)1C(2),C,C491,:CAN2:1)TSJW;2)1TSJW:[1],TSJW,,,,CAN,,10-5,1Mbös,,TSJW[5],35ns,,TSJW35ns[6]2TS1TS2[1],:TS2max{2TSCL,TSJW},(3)TS1max{TSJW+TP,TS2}.(4),:TSCL=0.1Ls;TSJW=0.1Ls;TS1=0.7Ls;TS2=0.2Ls5,1C900LsA,3AB1(B2):1)B1(B2)A;2)AB1(B2);3)AB1(B2),,2AB1(B2)(,)(4),C900LsA,AC210-8,2AB11108010-82108010-83108010-810-84108010-86CAN,CAN,,CAN,1MbösCAN(References)[1].CAN[M].:,1996.WUKuanming.CAN:PrincipleandDesignofAppliedSystems[M].Beijing:BeijingUniversityofAeronautics&AstronauticsPress,1996.(inChinese)[2]RobbS,KilbrideE.MotorolaSemiconductorApplicationNote:CANBitTimingRequirements[R].AN1798,Scotland:FreescaleSemiconductor,Inc,1999.[3]PhilipsSemiconductors.DATASHEET:PCA82C250CANControllerInterface[R].939775006609,Netherlands:PhilipsSemiconductors,2000.[4]PhilipsSemiconductors.DATASHEET:SJA1000Stand2aloneCANController[R].939775006634,Netherlands:PhilipsSemiconductors,2000.[5],,,.[J].,2005,24(4):7276.CUIZhiliang,ZHAOZhengming,YUANLiqiang,etal.ResearchontheOpticalFiberCommunicationSystemofMEDIUM2VOLTAGEInverters[J].AdvancedTechnologyofElectricalEngineeringandEnergy,2005,24(4):7276.(inChinese)[6]JhnkE,DietmayerK.ApplicationNote:DeterminationofBitTimingParametersforSJA1000CANController[R].AN97046,Hamburg:PhilipsSemiconductors.1997.02()2007,47(1)