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1、杭州电子科技大学硕士学位论文ABSTRACTSteppingmotorhasnoaccumulativeerror,highpositioningaccuracyandlowcostadvantages,iswidelyusedinmotioncontrolfield.Asdigitalchipprocessingabilityhasincreasedandaspiresofhighqualityandlowcostdriversystem,themanufacturingofadigitaldriverworkperfec
2、tly,whichhaspracticalsignificanceobviously.Inthispaper,three-phasesteppingmotorworkingprincipleandstructuralcharacteristicsisanalyzed,tolaythetheoreticalfoundationfordriverdesignandobtainsthatthehybridsteppermotoristhemainstreaminthefuturedevelopment,withtheadvanta
3、gesofbothreactiveandexcitationtypesteppingmotor.ThispaperintroducesPWMtechnologyofcurrenttrackingPWM,sinusoidalpulsewidthmodulation(SPWM)andvoltagespacevectorpulsewidthmodulation(SVPWM)indetail.ThecurrenttrackingPWMisonetypeoffeedbackcurrentfollowreferencevoltageha
4、ndling,hastheadvantagesofsimplecontrolandrealizationofanalogcircuitwithMCU;SPWMandSVPWMhandlingprocessmore,withDSPasitsprocessingunitsregularly.TheoutputSPWMwaveofregularsamplingmethodhasthehighharmoniccomponentsandthelowvoltageutilizationrate,However,SVPWMmethodis
5、widelyusedforitshighvoltageutilizationrate.Fortherealizationofvectorpulsewidthmodulation,takingTMS320F28031astheprocessingunitinthispaper,digitalsteppermotordrivercompatiblewithtwo-phasesteppermotorisestablishedandthesoftwarewrittenbasedonSVPWMisfulfilled.Thispaper
6、clearlypresentstheimplementationofhardwareandsoftwareeachmodule,andthecompletedanalogdriverofcurrenttrackingtypeiscompared.Finally,theanalysisdrawthatdigitaldrivernotonlycandrivetwo-phasesteppermotorsimultaneously,withabroadhardwareplatformapplicability;butalsothep
7、hasecurrentissimilartosinewaveinlowspeedandmotorrotationsteadily,andsolvetheanalogdriveratalowsubdivisionsinevitableoscillationphenomenon,furthervalidatestheadvantagesofthevoltagevectorcontrolmethodandthefeasibilityofhardwareandsoftwarescheme.Keywords:currenttracki
8、ng，steppingmotor，DSP，SVPWMII万方数据杭州电子科技大学硕士学位论文目录摘要...............................................................................................
