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(,315012):,,,,,Wijenayake,:;;:TM461.4:ACommonDCBussStudyandApplicationinPaperMachinesVVVFSystemLIFang2yuan(ZhejiangBusinessTechnologyInstitute,Ningbo315012,Zhejiang,China)Abstract:Inpapermachinesdrivesystem,somedrivesruninthemotoringorregenerationstatewithsomereasons.ThecommonDCbustechnologyusestheregenerationenergytosupplyotherdrives.Thistech2nologycansavetheenergy,cutdownthecostandoccupythelessspace.TheanalysisofcommonDCmodelbyWijenayakewasshown.AndthefinalexperimentprovesthattheprojectofcommonDCbusinpapermachineiscorrectandcredible.Keywords:paper2making;variablevoltagevariablefrequency(VVVF);commonDCbus:(1973-),,,Email:muzi_woody@163.com,,,,,,PWM,,,,,,,,11.112,,,,,,,,,52ELECTRICDRIVE2008Vol.38No.3200838312Fig.1Atwodrivesharedconfigurationintheformofblockdiagram(1800),,,,1.2,,,,,,,232,1.32,:5.5kW90kW2Fig.2Typicalpre2chargingwaveformsforadiodefrontend3Fig.3Typicalpre2chargingwaveformsforathyristorfrontend;5.5kW90kW1),,,622008383:,4,5.5kW,,5.5kW,,,,,4Fig.4DClinkvoltage,busfuseandDCbuscapacitorcurrentfortwodrivessharing,,,106A3ms,(I2t),1,,25.5kW90kW()5.5kW,100%,26%,90kW24%19%1Tab.1Devicestressesinindependentandparallelpre2charging/A/A5.5kW2.664.2090kW13.6317.565.5kW5.205.3090kW10.3414.22,,,(),,2),:;90kW5.5kW2,,5.5kWIc(43.75A44.44A),,Ifuse,5,2Tab.2Thecurrentvalueforthedifferentmode/A/A/A/A5.5kW12.42-7.5-90kW165.490.65100-5.5kW12.4243.7513.753690kW165.478.13106.25365.5kW12.4244.4404490kW165.484.440445.5kW12.5716.8811.5511.1190kW1679710011.1172:2008383(5D1D2,D3D4),(),,2,43A16.88A,11.11A5Fig.5ThebacktobackdiodeconnectivityofcommonmodeDCbus,5.5kW90kW,90kW31.1,,,,5,33Tab.3Thecurrentvalueforthesharingmode/A/A/A/A5.5kW-5.23232890kW-2916.87285.5kW12.2615.86363890kW166.6798.574.20385.5kW12.402001590kW1671020155.5kW12.219.841512.890kW166.79791.6712.822,33,,6()6Fig.6ThesharingcommonDCbusprojectforACgeneralinverter:1),;2);3);4)DC(49)822008383:[8]LabVIEW8.2,LabVIEW8.2(NI)LabVIEW,,,LabVIEW8.2I/O,,5,,,,DSP,,,,,,,1,,,.[J].,2006,37(8):65-67.2,,,.TMS320F2812.:,2005:11-18.3TMS320F2810,TMS320F2812DigitalSignalProcessorsDataManualLiteratureNumber:SPRS174ITexasInstrumentsInc.2003.4RealtekInc.RTL8019ASFull2DuplexEthernetControllerwithPlugandPlayFunction(RealPNP),2000.5,,.TMS320F2812DSP[J].,2005,30(1):47-48.6.DSPTCP/IP[J].,2006,23(2):179-181.7,,.TMS320F206DSP[J].,2006,22(5):156-158.8,.labVIEW7.1[M].:,2004:139-155.:2007203205:2007210215(28);5);6);7)D,,DC,DC,DC24V,2:1)READY,,,;2)FAULT,,:1);2),3,,(),1WijenayakeAH,GilmoreT,LukaszewskiR,etal.ModelingandAnalysisofShared/CommonDCBusOperationofACDrives.IEEEIndustryApplicationSocietyConference,NewOrleans,LA,1997:599-604.2TomGilmore,GarySkibinski.Pre2chargeCircuit.UtilizingNon2linearFiringAngleControl.IEEE-IAS.AnnualMeeting,1996:1099-1105.:2006210223:200820120294,:DSP2008383