光伏发电逆变器毕业论文中英文资料外文翻译文献.docx
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光伏发电逆变器毕业论文中英文资料外文翻译文献.docx
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光伏发电逆变器毕业论文中英文资料外文翻译文献
光伏发电逆变器毕业论文
中英文资料外文翻译文献
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文献翻译
TMS320LF2407,TMS320LF2406,TMS320LF2402
TMS320LC2406,TMS320LC2404,MS320LC2402
DSPCONTROLLERS
TheTMS320LF240xandTMS320LC240xdevices,newmembersofthe’24xfamilyofdigitalsignalprocessor(DSP)controllers,arepartoftheC2000platformoffixed-pointDSPs.The’240xdevicesoffertheenhancedTMS320architecturaldesignofthe’C2xxcoreCPUforlow-cost,low-power,high-performanceprocessingcapabilities.Severaladvancedperipherals,optimizedfordigitalmotorandmotioncontrolapplications,havebeenintegratedtoprovideatruesinglechipDSPcontroller.Whilecode-compatiblewiththeexisting’24xDSPcontrollerdevices,the’240xoffersincreasedprocessingperformance(30MIPS)andahigherlevelofperipheralintegration.SeetheTMS320x240xdevicesummarysectionfordevice-specificfeatures.
The’240xfamilyoffersanarrayofmemorysizesanddifferentperipheralstailoredtomeetthespecificprice/performancepointsrequiredbyvariousapplications.Flash-baseddevicesofupto32Kwordsofferareprogrammablesolutionusefulfor:
◆Applicationsrequiringfieldprogrammabilityupgrades.
◆DevelopmentandinitialprototypingofapplicationsthatmigratetoROM-baseddevices.
FlashdevicesandcorrespondingROMdevicesarefullypin-to-pincompatible.Notethatflash-baseddevicescontaina256-wordbootROMtofacilitatein-circuitprogramming.
All’240xdevicesofferatleastoneeventmanagermodulewhichhasbeenoptimizedfordigitalmotorcontrolandpowerconversionapplications.Capabilitiesofthismoduleincludecentered-and/oredge-alignedPWMgeneration,programmabledeadbandtopreventshoot-throughfaults,andsynchronizedanalog-to-digitalconversion.Deviceswithdualeventmanagersenablemultiplemotorand/orconvertercontrolwithasingle‘240xDSPcontroller.
Thehighperformance,10-bitanalog-to-digitalconverter(ADC)hasaminimumconversiontimeof500nsandoffersupto16channelsofanaloginput.TheautosequencingcapabilityoftheADCallowsamaximumof16conversionstotakeplaceinasingleconversionsessionwithoutanyCPUoverhead.
Aserialcommunicationsinterface(SCI)isintegratedonalldevicestoprovideasynchronouscommunicationtootherdevicesinthesystem.Forsystemsrequiringadditionalcommunicationinterfaces;the’2407,’2406,and’2404offera16-bitsynchronousserialperipheralinterface(SPI).The’2407and’2406offeracontrollerareanetwork(CAN)communicationsmodulethatmeets2.0Bspecifications.Tomaximizedeviceflexibility,functionalpinsarealsoconfigurableasgeneralpurposeinputs/outputs(GPIO).
Tostreamlinedevelopmenttime,JTAG-compliantscan-basedemulationhasbeenintegratedintoalldevices.Thisprovidesnon-intrusivereal-timecapabilitiesrequiredtodebugdigitalcontrolsystems.AcompletesuiteofcodegenerationtoolsfromCcompilerstotheindustry-standardCodeComposerdebuggersupportsthisfamily.Numerousthirdpartydevelopersnotonlyofferdevice-leveldevelopmenttools,butalsosystem-leveldesignanddevelopmentsupport.
PERIPHERALS
TheintegratedperipheralsoftheTMS320x240xaredescribedinthefollowingsubsections:
●Twoevent-managermodules(EVA,EVB)
●Enhancedanalog-to-digitalconverter(ADC)module
●Controllerareanetwork(CAN)module
●Serialcommunicationsinterface(SCI)module
●Serialperipheralinterface(SPI)module
●PLL-basedclockmodule
●DigitalI/Oandsharedpinfunctions
●Externalmemoryinterfaces(’LF2407only)
●Watchdog(WD)timermodule
Eventmanagermodules(EVA,EVB)
Theevent-managermodulesincludegeneral-purpose(GP)timers,full-compare/PWMunits,captureunits,andquadrature-encoderpulse(QEP)circuits.EVA’sandEVB’stimers,compareunits,andcaptureunitsfunctionidentically.However,timer/unitnamesdifferforEVAandEVB.Table1showsthemoduleandsignalnamesused.Table1showsthefeaturesandfunctionalityavailablefortheevent-managermodulesandhighlightsEVAnomenclature.
EventmanagersAandBhaveidenticalperipheralregistersetswithEVAstartingat7400handEVBstartingat7500h.TheparagraphsinthissectiondescribethefunctionofGPtimers,compareunits,captureunits,andQEPsusingEVAnomenclature.TheseparagraphsareapplicabletoEVBwithregardtofunction—however,module/signalnameswoulddiffer.
Table1.ModuleandSignalNamesforEVAandEVB
EVENTMANAGERMODULES
EVAMODULE
SIGNAL
EVBMODULE
SIGNAL
GPTimers
Timer1
Timer2
T1PWM/T1CMP
T2PWM/T2CMP
Timer3
Timer4
T3PWM/T3CMP
T4PWM/T4CMP
CompareUnits
Compare1
Compare2
Compare3
PWM1/2
PWM3/4
PWM5/6
Compare4
Compare5
Compare6
PWM7/8
PWM9/10
PWM11/12
CaptureUnits
Capture1
Capture2
Capture3
CAP1
CAP2
CAP3
Capture4
Capture5
Capture6
CAP4
CAP5
CAP6
QEP
QEP1
QEP2
QEP1
QEP2
QEP3
QEP4
QEP3
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