单片机步进电机应用和控制大学毕业论文英文文献翻译及原文Word格式.docx

单片机步进电机应用和控制大学毕业论文英文文献翻译及原文Word格式.docx

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单片机步进电机应用和控制

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2017.02.14

单片机控制步进电机

外文原文

Steppingmotorapplicationandcontrol

steppermotorisanelectricalpulsewillbeconvertedintoangulardisplacementoftheimplementingagencies.Putitinsimplelanguage-speaking:

Whenthestepperdrivepulsesignaltoareceiver,itdrivessteppermotorrotationdirectionbysettingafixedpointofview（andthestepangle）.Youcancontrolthenumberofpulsestocontroltheamountofangulardisplacement,soastoachievethepurposeofaccuratepositioning;

Atthesametime,youcanbycontrollingthepulsefrequencytocontrolthemotorrotationspeedandacceleration,soastoachievethepurposeofspeed.

SteppermotordirectlyfromtheAC-DCpowersupply,andmustusespecialequipment-steppermotordrive.Steppermotordrivesystemperformance,inadditiontotheirownperformancewiththemotorontheoutside,butalsotoalargeextentdependonthedriveisgoodorbad.Atypicalsteppermotordrivesystemisoperatedbythesteppermotorcontroller,steppermotordrivesandsteppermotorbodyiscomposedofthreeparts.Steppermotorcontrollerstepperpulseanddirectionsignal,eachmadeofapulse,steppermotor-drivensteppermotordrivesarotorrotatingstepangle,thatis,step-by-stepfurther.Highorlowspeedsteppermotor,orspeed,ordeceleration,startorstoppulsesareentirelydependentonwhetherthelevelorfrequency.Decidethedirectionofthesignalcontrollersteppermotorclockwiseorcounterclockwiserotation.Typically,thesteppermotordrivecircuitfromthelogiccontrol,powerdrivercircuit,protectioncircuitandpowercomponents.Steppermotordrivecontroller,oncereceivedfromthedirectionofthesignalandsteppulse,thecontrolcircuitonapre-determinedwayoftheelectricalpower-phasesteppermotorexcitationwindingsoftheconductionorcut-offsignal.Controlcircuitoutputsignalpowerislow,cannotprovidethenecessarysteppingmotoroutputpower,theneedforpoweramplifier,whichissteppermotordrivenpowerdrivepart.Powersteppermotordrivecircuittocontroltheinputcurrentwindingtoformaspaceforrotatingmagneticfieldexcitation,therotor-drivenmovement.Protectioncircuitintheeventofshortcircuit,overload,overheating,suchasfailuretostoptherapiddriveandmotor.

Motorisusuallyforthepermanentmagnetrotor,whenthecurrentflowsthroughthestatorwindings,thestatorwindingsproduceamagneticfieldvector.Themagneticfieldwillleadtoarotorangleofrotation,makingapairofrotorandstatormagneticfielddirectionofthemagneticfielddirection.Whenthestatorrotatingmagneticfieldvectorfromadifferentangle.Alsoastherotormagneticfieldtoapointofview.Anelectricalpulseforeachinput,themotorrotationanglestep.Itsoutputandinputoftheangulardisplacementisproportionaltothepulses,withpulsefrequencyproportionaltospeed.Powertochangetheorderofwinding,theelectricalwillbereversed.Wecan,therefore,controlthepulsenumber,frequencyandelectricalpowerwindingsofeachphasetocontroltheorderofrotationofsteppermotor.

Steppermotortypes:

Permanentmagnet（PM）.Magneticgenerallytwo-phasestepper,torqueandaresmallerandgenerallysteppingangleof7.5degreesor15degrees;

putmorewindforair-conditioning.

Reactive（VR）,thedomesticgeneralcalledBF,haveacommonthree-phasereaction,stepangleof1.5degrees;

alsohavefive-phasereaction.Noise,notorquehasbeensetatalargenumberofout.

Hybrid（HB）,commontwo-phasehybrid,five-phasehybrid,three-phasehybrid,four-phasehybrid,two-phasecanbecommonwiththefour-phasedrive,five-phasethree-phasemustbeusedwiththeirdrives;

Two-phase,four-phasehybridstepangleis1.8degreesmorethanasmallsize,greatdistance,andlownoise;

Five-phasehybridsteppingmotorisgenerally0.72,themotorstepanglesmall,highresolution,butthecomplexityofdrivecircuits,wiringproblems,suchasthe5-phasesystemof10lines.

Three-phasehybridsteppingmotorstepangleof1.2degrees,butaccordingtotheuseof1.8degrees,thethree-phasehybridsteppingmotorhasatwo-phasemixedthanthefive-phasehybridmorepolewillhelpelectricfoldersymmetricangle,itcanbemorethantwo-phase,five-phasehighaccuracy,theerrorevensmaller,runmoresmoothly.

Steppermotortomaintaintorque:

steppermotorpowermeansnorotation,thestatorlockedrotortorque.Itisasteppermotor,oneofthemostimportantparameters,usuallyinthelow-speedsteppermotortorqueatthetimeofclosetomaintainthetorque.Asthesteppermotoroutputtorqueincreaseswiththespeedofconstantattenuation,theoutputpoweralsoincre