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附录一英文文献FrequencyVariationSpeedControl1.1ThePopularityandProspectofFrequencyVariationSpeedControlTheelectricalmachineryexchangefrequencyconversionvelocitymodulationtechnologyistheelectricitysaving,theimprovementtechnicalprocessimprovestheproductqualityandtheimprovementenvironment,theimpetustechnologyadvancementonemainmethodnowThefrequencyconversionvelocitymodulationbyitsoutstandingvelocitymodulationandthebrakingquality,thehighefficiency,thehighpowerfactorandtheelectricitysavingeffect,thewidespreadapplicablescopeandothermanymeritsbythedomesticgrandfatherwasthoughtmosthasthedevelopmentfuturevelocitymodulationway.Theelectricaltransmissioncontrolsystemusuallybytheelectricmotor,thecontroldeviceandtheinformationinstalls3partstobecomposed,theelectricaltransmissionrelatesusestheelectricmotorbytosavetheelectricalenergyandtocontrolthemachineryreasonablytheoperatingcondition,therealizationelectricalenergymechanicalenergytransformation,achieves,thehighproduction,thelowconsumptiongoalhighquality.Theelectricaltransmissiondividesintodoesnotmodulatevelocityandmodulatesvelocitytwobigkinds,thevelocitymodulationisdividedtheexchangetomodulatevelocityandtodirectcurrentmodulatesvelocitytwoways.ThevariablespeedmotordirectlydoesnotsupplypowerbytheelectricalnetworkButthemachinerywhichdoesnotmodulatevelocityalongwithelectricpowerelectronictechnologydevelopmentthiskindoforiginalmanuscriptmoreandmoremanychangestothevelocitymodulationtransmissionbytosavetheelectricalenergyTheimprovementproductquality,enhancestheoutputThereforethevelocitymodulationtransmissionisanimportantprofession,alreadyobtainedthecountrytotake,atpresenthadcertainscale.Inrecentyearsexchangedinthevelocitymodulationmosttobeactive,todevelopquickestisthefrequencyconversionvelocitymodulationtechnology,thefrequencyconversionvelocitymodulationisexchangesthevelocitymodulationfoundationandthebranchcontent.Thelastcenturytransformerappearancecausesthechangevoltagetobecomeverymucheasy,thushasaccomplishedahugeelectricpowerprofession.Sincelongago,thealternatingcurrentfrequencyalwaysisfixed,thefrequencyconversionvelocitymodulationtechnologyappearancecausesthefrequencytobecomemaythefulluseresources.Inthisrecent10years,thefrequencyconversiontechnologyapplicationhastheverybigdevelopmentinourcountry,andobtainedthegoodeffecttobepossibletosay,thefrequencyconversiontechnologyhasacceptedforthemajorityusers,buthadnoalternativebuttopointout,ourcountryinfrequencyconversiontechnologyapplicationaspect,withdevelopedcountrylevelShangYouverybigdisparity.Atpresent,theACmotorsweareusingnowusefrequencyvariationspeedcontrolonlyabout6,butthedevelopedcountryis6070,Japanonairblower,waterpumpfrequencyconversionvelocitymodulationuserateis10,butourcountryislessthan0.01,InJapanairconditionerusingfrequencyvariationtechniquerateis70,butourcountrysonlythenjuststartedEmbarksfromthisreality,frequencyconversiontechnologyremainhavetheverybigdevelopmentspace,weshouldcompletethepromotedapplicationworkdoggedly.Andwiththeconstantdevelopmentofcontroltechniqueandcontrolavenue,frequencyvariationspeedcontrolledhasdevelopedthevectorcontrolledfrequencyvariationvelocitymodulation,bycontrollingtheACmotorinsideactforshuntDCmotorfieldcopersflux,toenhancethepermanenttorqueoutputscopeandstaticanddynamiccharacter,maketheACmotorfrequencyvariationspeedcontrolledsystemsuperiortoDCmotorvoltagevariationspeedcontrolledsystem.Forsimplifyingthecontrolsystem,reducingthefaultrate,therehasdevelopedavectorcontrolledfrequencyvariationspeedcontrolwithoutspeedsensorwhichbasedonthevectorcontrolledfrequencyvariationspeedcontrol.Insomeapplicationwhichhavelowrequire,vectorcontrolledfrequencyvariationspeedcontrolwithoutspeedsensorcouldcompletelycomparewiththevectorcontrolledfrequencyvariationspeedcontrolthathavespeedsensor.ThevectorcontrolhastheepochmakingsignificancetotheACcurrentmotorvelocitymodulation.Frequencyvariationspeedcontrolisthebestwayinthemotorspeedmodulation,itistheperfectgearinthecompanystechnicalreformandproductrenewal,itistheessentialcompositionintheindustrialautomaticsystem,itistheassumptionofrealizingtheautomaticofproductproceedandmanagement,itisalsothepreconditioninthedevelopmentofinformationization.Inourcountrystraditionalestate,usingtheDCmotorspeedcontrolactuationaccountabout8590inthespeedcontrolledsystem,buttheACspeedcontrolledsystemaccountabout1015.Lowefficiency,badquality,largecost,highfaultratehavealreadybeenthebottleneckthatrestrainthedevelopmentofthecompany.So,wemustpromotetheadvancedACfrequencyvariationspeedcontroltechniquepositively,armsthetraditionalindustrywiththeadvancedequipment,promoteafurtherdevelopmentintheautomation,theindustrializationandtheinformationization.1.2OurCountrysDevelopmentConditioninSpeedControlledTechniqueOurcountryisadevelopingcountry,somanyproductsresearchabilityhasbehindthedevelopedcountries.Fromnowon,theproductoffrequencyvariationspeedcontrolledthatourselvesmadeonlyactforlastcentury90sintheinternational.Withthereformandopening,rapiddevelopmentofeconomic,formsalargemarket,itopenstothecountrycompanies,alsotheforeigncompanies.Manyproductsareexportedfromthedevelopedcountries,andrunswellinourcountry,satisfiedourneedinfabricationandliving.Manycopartershipcompaniesinourcountrymaketheinternationaladvancedproducts.Thedomesticcompletedepartmentindependentlyisdesigningthemanufactureinthecompletesetinstallmenttousetheforeignimportcompanyandthejointventuresupposesadvancedeach,owndeveloptheapplicationsoftware,canprovidethefirstclasselectricaltransmissioncontrolsystemforthedomesticandforeignimportantengineeringproject.Althoughobtainsverymanyresult,butshouldseebecausedomesticdevelops,theproductionproductabilityvoluntarilyisweak,isserioustotheoverseascompanysdependence.Asearlyasinthecountry85technicalattackplan,thealternatingvelocitymodulationtechniquewaslistedasthekeytechnicalattackproject,butbecauseourcountryselectricpowerandelectronicdeviceaggregatelevelisverylow,althoughtheproductionofIGBT、GTOcomponenthasintroducedtheoverseastechnique,ithasnotformedtheeconomiesofscalebenefit,almostdoesnothavetheindependentdevelopmentabilityofnewfrequencyconverterproduction,thishasaffectedthedomesticfrequencyconversionvelocitymodulationtechniquedevelopmentinthecertaindegree.InthehighefficiencyACACfrequencyconverttechnique、themotorswithoutcommutatortechniqueandsoon,thedomesticproductalsohasthesuitabledisparityinthedigitizationandthesystemreliableaspectcompareswiththeoverseaslevel,inthemediumefficiencyfrequencyconverttechnique,nearlyallproductionsuseordinaryV/Fcontrolinland,fewadoptthevectorcontroltechnique,andcannotsatisfiedthemarketrequirementinthevarietyandquality.Butinoverseas,thefrequencyconversiontechniqueobtainsthefulldevelopment,andhasobtainedtheremarkableachievementineachaspect.Inpowercomponentaspect,highvoltage、theappearanceofSCR、GTO、IGBT、IGCTwithhighcurrentcapacityandtheusinginseriesandparallel,thehighpressuredandhighefficiencyfrequencyconverterproductionobtainstheproductionandthepromotedapplication.Inmicroelectronictechniqueaspect,16bitand32bithighspeedmicroprocessorsaswellasthefastdevelopmentofDSPandASICtechnique,providedthehardwaremethodinrealizingthefrequencyconverterwhichwithhighaccuracymultipurpose.Intheoryaspect,thevectorcontrol,themagneticfluxcontrol,thetorquecontrol,theintelligentcontrol,thenewcontroltheoryandsoonhaveprovidedtherelatedrationaleforthehighperformancefrequencyconverterdevelopment,wemayseethat,intheoverall,thealternatingfrequencyconversionvelocitymodulationtechniqueinourcountryhasbigdisparitycompareswithinternationallevel.Therefore,theACfrequencyvariationspeedcontroltechniquehasthefollowingsides1Thebasicresearchofcontrolstrategyinfrequencyconverterhasalargegapcompareswiththeforeignlevel.2Thetechnicallevelofthewholemachineislowinthefrequencyconverter,althoughwehadinputcertainlypeople,materialresources,butbecauseofthedispersepower,didnotformacertainlytechniqueandproductionscale.3Allthesemiconductorpowerdeviceproductinthefrequencyconverterisblank.4CorrelativeIndustriesandrelativeIndustriesdropbehind.5Fewproductionandsale,lowreliableandtechnologicalstandards.Withthedevelopmentandimprovementinthepowerelectronictechnique,powerdivertbasedonpowerelectroniccircuittechniqueandvariouscontroltechnique,theACfrequencyvariationspeedcontrolledtechniqueismaturedaybyday,andsuretobethemainwayinthefuture.Withtheconstantdevelopmentofpowerelectronictechnique,reliablecharacter,welladoption,cheappricethatthefrequencyconverterhavewillbecometrue.Thistechniquewillgainwidely,popularityapplication.Atpresent,foreigndevelopedcountriesfrequencyconverttechniquetowardstotheminiaturization,highreliability,defendwithharm,morefunction,highcharacter,andourcountryiscomingonnow.1.3FrequencyVariationSpeedControlledModeThealternatingfrequencyconversionvelocitymodulationtechniqueobtainedtherapiddevelopmentin20thcentury.Thisisrelatedwithsomecrucialtechnicalwhichgainunprecedentedprogress,theyareMotorvectorcontroltechnique,Directtorquecontroltechnique,PWMtechnique,Entirenumericalcontroltechniqueandselfsettingtechniquewhichbasedonmicrocomputerandlargescaleintegratedcircuit,andsoon.1VectorControlTechniqueVectortransformationcontroltechniqueisaonekindofnewcontrolthoughtandcontroltheorywhichposedbySIEMENSCO.in1971.Itisrealizingthestatorcurrentexcitationcomponentandthetorquecomponentsolutionlotusrootbyrotormagneticfielddirectiondetection,andvectortransformation,achievedthegoalthatseparatelycontrolthemotorfluxlinkageandtheelectriccurrent,asaresult,obtainfinelystatic,dynamicperformance.Untilnow,thevectorcontroltechniquehasobtainedtheconsiderabledevelopment,andalsoobtainedthewidespreadapplication.2VectorControlWithoutVelocityGeneratorTechniqueVectorcontrolwithoutvelocitygeneratortechniqueabolishtheproblemsthattheenvironmentcompatibility、installandmaintenancebringon,reducethecost,enhancethesystemreliability,atthesametime,unionvectorcontrol,hasthefineperformanceofvectorcontrol.Thespeedestimatemethodinvectorcontroltechniquewithoutvelocitygenerator,besidesbasismathematicalmodelcomputationelectricmotorrotationalspeed,atpresentthemoreappliedarethemodeltoreferautoadaptedmethodandexpandstheKalmanfilteringlaw.Inaddition,entireUygurrotormagneticfluxsight,toothovertoneelectricpotential,suchasthistheoryandsoon,alsoappearanceinthevectorcontrolwithoutvelocitygeneratortechnique.Since1983proposedthevectorcontrolwithoutvelocitygeneratortechniquecontrolstrategy,receivestheacademiccirclesandtheindustrialfieldcontinuouslyhighlyfocusedallthetime.HitachicompanyandSichuanelectricalmachineryandsoonhadpublishedtheresearchresultsseparatelyin1987,andhadpromotedtheproductoneafteranother.Atpresent,vectorcontrolwithoutvelocitygeneratortechniqueinfrequencyconvertercontrollinginthevelocitymodulationscopeisabout150,someindividualmerchanthas175orevenhigherproduct.3DirectTorqueControlTechniqueIn1985,GermanysM.Depenblockproposesthedirecttorquecontroltechnique(DTC)forthefirsttime,Thedirecttorquecontroltechniqueanalyzesthemotormathematicalmodeldirectlyunderthestatorcoordinatesystem.Usesthestatormagneticfielddirectiondetectionbutnottoneedthesolutionlotusrootelectriccurrent,directlycontroltheelectricmotorfluxlinkageandtorque,enablethetorquetoobtainthefastresponse,inordertoobtainthehighlyeffectivecontrolperformance.Directtorquecontroltechniqueisanotherkindofnew、highperformancealternatingfrequencyconversionvelocitymodulationtechniqueaftervectorcontroltechniquein
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