单片机外文翻译

外文文献：Doubleswitchedreluctancemotorsparalleldrivebasedondual89C52singlechipmicroprocessorsAbstractThedevelopeddoubleSwitchedReluctancemotorsparalleldriveispresented,whichismadeupoftwofour-phase8/6structureSwitchedReluctancemotors,twofour-phaseasymmetricbridgepowerconvertersandthecontroller.Thefour-phase8/6structureSwitchedReluctancemotor,thefour-phaseasymmetricbridgepowerconverterandthecontrolschemearedescribed.Theclosed-looprotorspeedcontrolofthemainmotorandtheclosed-looprotorspeedcontrolofthesubroutinemotorcouldbebasedonthepulsewidthmodulationfuzzylogicalgorithm,whichisimplementedbydual89C52singlechipmicroprocessorcontroller.TheexperimentalresultsofrotorspeedsandphasecurrentsintwoSwitchedReluctancemotorsaregiven.Keywords:switchedreluctance;fuzzylogic;microprocessor1.IntroductionTheelectriclocomotivesincoalminesaredrivenbyseriesdirectcurrentmotordrivesystem.Theaccessionalresistorregulatedcontrolorthechoppingcontrolisusedtoadjusttherotorspeedoftheseriesdirectcurrentmotorandtocontrolthespeedofelectriclocomotive.TheSwitchedReluctancemotordrivecanbeoperatedatfourquadrants[1].Itcouldbeusedaselectricaltractionforelectriclocomotivesincoalmines[2][3].ThesoftmechanicalcharacteristicsofSwitchedReluctancemotordrive[4]contributetoparalleldoubleSwitchedReluctancemotordrivessystemwithsynchronizationoftherotorspeedandtheloadsbeinginequilibrium.ThedoubleSwitchedReluctancemotorsparalleldrivesystemcanbeusedtoreplacetheseriesdirectcurrentmotordrivesystemastheadjustablespeedmotordrivefortheelectriclocomotives.TheSwitchedReluctancemotordriveismadeupoftheSwitchedReluctancemotor,thepowerconverterandthedigitalcontroller.Therearefour-phase8/6structureSwitchedReluctancemotorandthree-phase6/4structureSwitchedReluctancemotor.Thefaulttoleranceabilityoffour-phase8/6structureSwitchedReluctancemotorishigherthanthatofthree-phase6/4structureSwitchedReluctancemotorsothatfour-phase8/6structureSwitchedReluctancemotorisadoptedinthesystem.Thereareasymmetricbridgecircuit,bifilarwindingcircuit,commonswitchcircuit,resistancecommutationcircuit,splitsupplycircuit,inductancecommutationcircuitforfour-phasepowerconverterwithfour-phase8/6structureSwitchedReluctancemotor.Thefour-phaseasymmetricbridgepowerconvertercircuitisadoptedinthesystemduetoitsindependenceineachphase.ThedigitalmicroprocessorhastheadvantagesinhighreliabilityandstabilityforcontrolofSwitchedReluctancemotordrive.Somecontrolalgorithmscanbeimplementedbythedigitalmicroprocessor.TheSwitchedReluctancemotordriveisbasedonIntel8031[5],Intel80C196KB[6],Intel87C196KC[7].The89C52digitalmicroprocessorhadbeendevelopedforslidingmodeandPIcontrolofasingleSwitchedReluctancemotordrive[8].Thepaperpresentsdual89C52singlechipmicroprocessorscontrollerfordoubleSwitchedReluctancemotorsparalleldrive.ItisnoteasytogaintheexactmathematicalmodelofSwitchedReluctancemotordrivesinceithasnonlinearmagneticpathsinthemotorandnonlinearcircuittopologyinthepowerconverter.ItisnotnecessaryforthefuzzylogiccontroltogaintheexactmathematicalmodelofSwitchedReluctancemotordrive.Therotorspeedclosed-loopcontrolcouldbeimplementedbasedonthefuzzylogicalgorithm.2.SchemeofsystemThedevelopeddoubleSwitchedReluctancemotorsparalleldriveconsistsoftwofour-phase8/6structureSwitchedReluctancemotors,twofour-phaseasymmetricbridgepowerconvertersandthedigitalcontroller.1.1.MotorTwofour-phase8/6structureSwitchedReluctancemotorsareadoptedinthedevelopeddoubleSwitchedReluctancemotorsparalleldrive.Thecrosssectionofthefour-phase8/6structureSwitchedReluctanceisshowninFig.1.Thereareeightpolesinthestator,whilesixpolesintherotor.Thetwocoilsonthediametricallyoppositestatorpolescanbeconnectedtomakeupaphasewinding.Thereisonlyphasewindinginthestator.Thereisnowinding,nomagnetandnobrushintherotor.Thereisarotorpositiondetectoronthemotorfordetectingrotorpositionandspeed.Thephotographofthedevelopeddualfour-phase8/6structureSwitchedReluctancemotorsisshowninFig.2.Fig1.Crosssectionofthefour-phase8/6structureSRmotorFig2.Photographofthedevelopeddualfour-phase8/6structureSRmotors2.2.PowerconvertersThemaincircuitofthetwofour-phaseasymmetricbridgepowerconverterswithphasewindings,“A1”,“B1”,“C1”and“D1”,“A2”,“B2”,“C2”and“D2”,isshowninFig.3.2.3.ControlschemeTheturned-onangleandtheturned-offangleofthemainswitchesarefixed.ThetriggeredsignalsofthemainswitchesinthedualpowerconvertersaremodulatedbyPWMsignal.Theclosed-looprotorspeedcontrolinthemainSwitchedReluctancemotorcouldbeimplementedbycomparisonofthegivenrotorspeedandtherealrotorspeedofmainmotor,andbyregulationofthedutyratioofPWMsignalinmainpowerconverterwithfuzzylogiccontrolalgorithm.Theclosed-looprotorspeedcontrolinthesubroutineSwitchedReluctancemotorcouldbeimplementedbycomparisonoftherealrotorspeedofmainmotorandtherealrotorspeedofsubroutinemotor,andbyregulationofthedutyratioofPWMsignalinsubroutinepowerconverterwithfuzzylogiccontrolalgorithm.Thefuzzylogiccontrolalgorithminan89C52digitalmicroprocessorforthemainmotorcouldbe11igfenn(1)where,thegivenrotorspeedisgn,andtherealrotorspeedis1fn,thedeviationoftherotorspeedofthemainmotoratth