Curtis Instruments 1238 User Manual

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#URTISCONTROLLERSCONVERT$#BATTERYPOWERTOPHASE!#POWER
BYPRECISELYCONTROLLINGTHEINDUCTIONDRIVEFORHIGHBANDWIDTHHIGHEFlCIENCY
ANDLOWRIPPLETORQUEGENERATION4OREALIZETHISLEVELOFPRECISETORQUECONTROLOF
INDUCTIONMOTORDRIVESINELECTRICVEHICLES#URTISENGINEERSCAREFULLYEVALUATED
ANDINCORPORATEDTHELATESTTECHNOLOGYINMICROPROCESSORSPOWERELECTRONICS
ANDMOTORCONTROL
)NVENTEDBY.IKOLA4ESLAINTHEINDUCTIONMOTORBECAMEAWORKHORSE
THATCONTRIBUTEDTOTHEVASTINDUSTRIALGROWTHINTHETWENTIETHCENTURY5NTIL
RECENTLYRELEGATEDTONONDYNAMICAPPLICATIONSWHERETRANSIENTRESPONSEWASNTA
CRITICALCONCERNINDUCTIONMOTORSARENOWACOMMONMOTOROFCHOICEINHIGH
PERFORMANCECONTROLAPPLICATIONS4HISSHIFTWASFACILITATEDBYTHEENORMOUS
ADVANCEMENTSINMICROPROCESSORSANDPOWERSILICONDEVICESINTHELASTTHIRTY
YEARSCOUPLEDWITHINTENSERESEARCHANDDEVELOPMENT
4HEPHASEINDUCTIONMOTORHASTHREESETSOFDISTRIBUTEDWINDINGSINTHE
STATORWINDINGSLOTS4HESTANDARDINDUCTIONMOTORHASAROTORWITHALUMINUM
BARSSHORTCIRCUITEDBYCASTALUMINUMENDRINGS4HEREARENOBRUSHESCOM
MUTATORS
ORSLIPRINGS
ANDUNLIKE$#ANDSYNCHRONOUSMOTORSTHEREIS
NONEEDFORPERMANENTMAGNETSORASEPARATECURRENTSUPPLYFORTHEROTOR4HE
BRUSHLESSCONSTRUCTIONOFTHEINDUCTIONMOTORANDTHERUGGEDROTORPROVIDE
HIGHRELIABILITYFAULTTOLERANCELOWMAINTENANCEANDLOWCOST
4HREEPHASESINUSOIDALVOLTAGESELECTRICALLYDISPLACEDBYAREAPPLIED
TOTHEPHASEWINDINGSTOCREATETHESTATORMAGNETIClELD4HElELDROTATESAT
THESTATORVOLTAGEFREQUENCYDIVIDEDBYTHENUMBEROFPOLEPAIRS4HISROTATING
STATORlELDINDUCESCURRENTSINTHECONDUCTIVEROTORBARSBYTRANSFORMERACTION
WHICHINTURNCREATEASECONDROTORMAGNETIClELD4HEROTORlELDREACTSTO
THESTATORlELD TOGENERATE TORQUE4HE DIFFERENTIALSPEEDORSLIP FREQUENCY
BETWEEN THE STATOR lELD ANDROTOR SPEED IS CRITICAL TO THE TORQUEAND SPEED
CONTROLOFANINDUCTIONMOTOR
-OTOR#ONTROL!LGORITHMS
4WOMAINAPPROACHESARECOMMONLYUSEDFORINDUCTIONMOTORCONTROLSCALAR
CONTROLANDVECTORCONTROL
3CALARCONTROLEGVOLTS(ZMODULATESONLYTHEMAGNITUDEANDFREQUENCY
OFTHEAPPLIEDVOLTAGEORCURRENT!LTHOUGHSCALARCONTROLHASTHEADVANTAGE
OFBEINGSIMPLERTHANVECTORCONTROLITHASPOORDYNAMICRESPONSEANDLOWER
OPERATIONEFlCIENCY4HEVARIOUSMETHODSUSEDTOIMPROVEPERFORMANCEREQUIRE
EXTENSIVECHARACTERIZATIONOFTHEMOTORANDLOADS
6ECTORCONTROLEGINDIRECTROTORmUXORIENTATIONSTATORmUXORIENTATION
ETCMANIPULATESTHEMAGNITUDEFREQUENCYANDPHASEOFTHECONTROLVARIABLES
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Curtis Instruments 1238 Specifications

General

Brand	Curtis Instruments
Model	1238
Category	Controller
Language	English