電氣工程APS審核資料

朽木易折，金石可鏤。千里之行，始于足下。第頁/共頁基礎(chǔ)課：Advancedmathematics高等數(shù)學(xué)Thisisamathematicfoundationcoursefocusmainlyonthecalculus.Welearnedaboutfunctions,limits,derivatives,differentiationandintegration.Wealsolearnedtheapplicationofthesemethods.Complexvariablefunctionsandintegraltransformation復(fù)變函數(shù)Inthiscourse,Ilearnedaboutthecomplexnumbers,andtheLaplacetransform.Laplacetransformismoreusedinsolvingdifferentialandintegralequation.Hereisanexample:3.ProbabilityandMathematicalStatistics概率論與數(shù)理統(tǒng)計(jì)Ilearnedabouthowtocalculatetheprobabilityofacertainevent.Forexample,therearetenballsinthebox,4areredandtherestareblue,thentheprobabilityofgrabbing2redballwithoutputtingthembackisP=C2-4/C2-10=(4*3/2)/(10*9/2)=2/14.FundamentalOfCollegeComputer大學(xué)計(jì)算機(jī)基礎(chǔ)Thiscoursetaughtmeaboutthebasicuseandcomponentsofcomputer.Ilearnedabouthowtomakingflashandsimplewebpages.CollegePhysics大學(xué)物理Inthiscourse,Ilearnedaboutthermology,optionsandsomebasicknowledgeofelectromagneticincludedFourday,Lorentz,Lentzandsoon.Forexample:PhysicsExperiment物理實(shí)驗(yàn)Howtoutilizetheequipmentrightly,observethephenomenon,measuretherecords,andfinallyanalyzetheresults.Example(Themeasurementofinertiamoment)ProgramminginClanguageC語言程序ThiscourseisabouthowtoprograminClanguage.HereisanexampleshowinghowtocomparetwointegerwithC:#include<stdio.h>Voidmain{inta,b,max;scanf(“%d,%d”,&a,&b);if(a>=b)max=a;elsemax=b;printf(“max=%d\n”,max);}6.EngineeringDrawing工程制圖Thiscourseisabouthowtocommunicateallneededinformationofadesignedpartfromengineertotheworkerwhowillmakeit.Tobemorespecific,Ilearnedaboutthird-angleprojection,sectionview,whichshowsinternalfeaturesthatarenotcleardefinedwithregularprojections.IalsolearnedhowtodrawwithCADsoftware.7.Microchipprincipleandapplication微機(jī)原理與應(yīng)用Thiscourseisafoundationfocusmainlyontheassemblinglanguage.Wealsolearnedthebasicinstrumentandinnercircuitofcomputer.8.SinglechipInthiscourse,Ilearnedhowtorealizethefunctionofsinglechipbywritingtheresource.First,teachershowedustheinnercircuitandprincipleofchip,thenwasthefunctionofeachpins.finally,wehadaprocessingwhichkepttwoweekends.9.TechnicOfElectrotechnicInthiscourse,Ihavelearnedaboutthebasicknowledgeofcircuitsanditsbasiclaws.SuchasOhm’slaw(I=U/R,current,potentialdifference,resistance.),Kirchhoff’scurrentlaw,Kirchhoff’svoltagelaw.Kirchhoff’scurrentlaw:Thecurrentflowoutofanodeisequaltothecurrentflowsintothenode.Kirchhoff’svoltagelaw:Thedirectedsumofthepotentialdifferenceinanyclosedcircuitiszero.Example（drawasimplecircuit）10.BasicMechanicEngineering1)ConceptofMachine:Organization:eachparthastherelativemotion,realizethemotion’stransmitandconvert.Mechanism:partment,whichcabrealizetheEnergyconvertiontoaccomplishusefulworks.Transmission:whichtransmittheenergyandrealizethemodulationofspeed.2)Forceanalysis:Distortion,stables,damageTheaimofforceanalysisisdeterminewhethertheelementasdesireddescribedloadingtoensurethenormaloperation.1))Threecharacteristics:rigiditystrengthstability2))Threedefectforms:Axialtensil,Cutandextrusion,bentExample:正應(yīng)力（強(qiáng)度和剛度），剪切與擠壓等。3)CommonMachine:Leakage.11.ElectronicTheorem:1.whataretheelectronics.Electronics,whichincludeanymachinepoweredbyelectricity,mainlyhaveeffectontheconnecting,breaking,parameter’schangingofcircuit,inordertorealizethecontrol,monitor,protectofelectricalequipment.2.Maincomments:Electro-magneticmachineconcludethesystemandprincipleandArctheoremconcludethecharacteristicandapplication.Electro-magneticsystem:whenthecurrentorvoltageintothecoil,itwouldgeneratesthemagneticfield.Thefluxwouldthroughmajoritytheironbeam,yoke,keeper,air-gapencloseandgeneratestheforceonthefaceofkeepercalledEMforce.Whentheattractiveforcecanagainsttheforceofspringforce,itcanbeclosed.Arc:isaphenomenonofgasdischarge.Theneutralgasisdissociatedandproducesanongoingplasmadischarge.Becausethehightemperaturecandamagetheconnector,sowemusteliminatethearcasquicklyaspossible.Eliminatemethods:SF6,magneticblowout,airlancing.Therest:直易交難滅?。ˋC/DC的各自特點(diǎn)），thermalinertia熱慣性，吸力的計(jì)算公式推導(dǎo)過程；13.PowersupplyEngineering:(powersystemandpowersupplycircuit)Apowersupplysystemisasystemwhichincludedthetransformer,electrics,wire,cableandsoon.1)Basictheorem:Loadscalculation(sumofratedpowerandthemeaningofit:whencalculatewereover,theelectronicswouldoperateundertheheatingotherwisewasteoftheenergyandmaterials.)2)Maincircuit:thechoiceoftransformerandwireandcableFunctionoftransformer:boostandreducethevoltageandisolation,protection.(3phasenon-exciteddoublewindingdrytype)

wireandcable:1))cableusedforpowertransmissionanddistribution2))bareconductor:usedforoverheadline3))insulatedwire:endofconnectionoflow-voltageSecondarycircuitforprotecting,monitoring,controllingandsoon.3)relayingprotectionincircuit:Forms(current,voltage)Reversingandlimit-timerelayingprotectionThecharacteristicofthemandtheapplicationForexample:14.Automaticcontroltheory:focusmainlythefeedbacksystemandanalyzetheFS.1)whatisthefeedbacksystemandautomaticcontrol(transferfunction,meaningoftransferfunctionandsoon.)2)analysisofthefeedbacksystem:stabilitytrainsientperformanceIncludethetimedomainanalysis(低階low-order，高階high-order，性能分析performance),rootlocus,frequencyproperty.15.DigitalElectronics:studythediscretecomparedwiththeanalogelectronicsMaincomments:logicconnectionbetweenthediscrete.1)gatecircuit:ANDORNOTXORandsoon,threeformsexpressionfunction,truthtable,circuitmap.2)combinatoriallogiccircuit:halfadder,fulladderanddifferenceMethodofmorecomplexlogic:First,listthetruthtableandthenusedthekarnaugh-maptosimplify,getthelogicfunction,finallydrawthecircuitgragh.3)Temporallogiccircuit:Itisconsistofcombinationcircuitandtriggerwhichasastorageunit.Thestoragecircuitfeedbacktotheinputofcombinationithasapresentstatementandnextstatement.15.Analogelectronics:studytheSemiconductorsandit’sapplication.1)diode:Function:currentcanpassinforwardwayandbeclockedinreverseway.Principle:addsomeimpurityintoinstrinsicsemiconductor,p-typeisoneputintotheboronandproducestheholes,becomepositive.N-typeisoneputintothephosphoroustobecomenegativeandproduceselectronics.Becauseofdifferentintensity,theywouldspreadfromhightolowandproduceP-Nregion.Whenaddforwardvoltage,theE-fieldwouldbecutdownandseemsthatresistorreducedotherwisewouldbewider.(同理可得BJT,并且畫他們的特性曲線等)BJT’application:commoncollect,emission,basic.16.ElectronicsPower:itistechniquewhichcouldtransferandcontrolthepowerenergybyelectronicsdevice.1)electronicsdevice:uncontrollable(diode),halfcontrollable(thyristor),fullcontrollable(IGBT)其原理和工作狀態(tài)，工作特性等2)transfer：rectify,invertionandothertransfer.RectifyingisaconvertfromACtoDC.InvertionisaconvertfromDCtoAC.舉例畫圖：單相半波整流，單相全橋整流，VSIandCSIOther:AC-AC,DC-DC.舉例：Boostchopper,buckchopper.3)control:PWM(phasewidthmodulation)17.Motormachine:Whatismotor,motor’stype,principle,instrument,operation,characteristicandsoon.Transistor:adevicethatchangesACelectricenergyatonevoltageleverintoanotherleverthroughtheactionofamagneticfield.1)instrument:itisconsistoftwoormorecoilsofwirewrappedaroundacommonferromagneticcore,theyconnectedbymagneticflux.Becausethefluxissame,sotheEMforceisproportiontothenumbersofwinding.2)Principle:whenfluxlinkagevaryinginanycoils,itproducesEMforce.3)operationcharacteristic:noloadandloadoperationNoload:equivalentcircuit,impedance,Becauseeddycurrentlosseshysteresislossandsoon,weregardedtheironlossasequivalentresistorRmtostandfortheheating,Xmisthemainfluxthroughtheironwhichgeneratesthereactance.U2=E1-I2(R2+jX2)=E1-I2E2DCmachine:electricalmotorandgenerator.Itcanrealizetheconversionbetweendirectenergyandmachineene