电气工程APS审核资料Word下载.docx

电气工程APS审核资料Word下载.docx

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5.ProgramminginClanguageC语言程序

ThiscourseisabouthowtoprograminClanguage.

HereisanexampleshowinghowtocomparetwointegerwithC:

#include<

stdio.h>

Voidmain（）

{

inta,b,max;

scanf（“%d,%d”,&

a,&

b）;

if（a>

=b）

max=a;

else

max=b;

printf（“max=%d\n”,max）;

}

6.EngineeringDrawing工程制图

Thiscourseisabouthowtocommunicateallneededinformationofadesignedpartfromengineertotheworkerwhowillmakeit.Tobemorespecific,Ilearnedaboutthird-angleprojection,sectionview,whichshowsinternalfeaturesthatarenotcleardefinedwithregularprojections.IalsolearnedhowtodrawwithCADsoftware.

7.Microchipprincipleandapplication微机原理与应用

Thiscourseisafoundationfocusmainlyontheassemblinglanguage.Wealsolearnedthebasicinstrumentandinnercircuitofcomputer.

8.Singlechip

Inthiscourse,Ilearnedhowtorealizethefunctionofsinglechipbywritingtheresource.First,teachershowedustheinnercircuitandprincipleofchip,thenwasthefunctionofeachpins.finally,wehadaprocessingwhichkepttwoweekends.

9.TechnicOfElectrotechnic

Inthiscourse,Ihavelearnedaboutthebasicknowledgeofcircuitsanditsbasiclaws.SuchasOhm’slaw（I=U/R,current,potentialdifference,resistance.）,Kirchhoff’scurrentlaw,Kirchhoff’svoltagelaw.

Kirchhoff’scurrentlaw:

Thecurrentflowoutofanodeisequaltothecurrentflowsintothenode.

Kirchhoff’svoltagelaw:

Thedirectedsumofthepotentialdifferenceinanyclosedcircuitiszero.

Example（drawasimplecircuit）

10.BasicMechanicEngineering

1）ConceptofMachine:

Organization:

eachparthastherelativemotion,realizethemotion’stransmitandconvert.

Mechanism:

partment,whichcabrealizetheEnergyconvertiontoaccomplishusefulworks.

Transmission:

whichtransmittheenergyandrealizethemodulationofspeed.

2）Forceanalysis:

Distortion,stables,damage

Theaimofforceanalysisisdeterminewhethertheelementasdesireddescribedloadingtoensurethenormaloperation.

1））Threecharacteristics:

rigiditystrengthstability

2））Threedefectforms:

Axialtensil,Cutandextrusion,bent

Example:

正应力（强度和刚度），剪切与挤压等。

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:

直易交难灭弧（AC/DC的各自特点），thermalinertia热惯性，

吸力的计算公式推导过程；

13.PowersupplyEngineering:

（powersystemandpowersupplycircuit）

Apowersupplysystemisasystemwhichincludedthetransformer,electrics,wire,cableandsoon.

1）Basictheorem:

Loadscalculation（sumofratedpowerandthemeaningofit:

whencalculatewereover,theelectronicswouldoperateundertheheatingotherwisewasteoftheenergyandmaterials.）

2）Maincircuit:

thechoiceoftransformerandwireandcable

Functionoftransformer:

boostandreducethevoltageandisolation,protection.（3phasenon-exciteddoublewindingdrytype）

wireandcable:

1））cableusedforpowertransmissionanddistribution

2））bareconductor:

usedforoverheadline

3））insulatedwire:

endofconnectionoflow-voltage

Secondarycircuitforprotecting,monitoring,controllingandsoon.

3）relayingprotectionincircuit:

Forms（current,voltage）

Reversingandlimit-timerelayingprotection

Thecharacteristicofthemandtheapplication

14.Automaticcontroltheory:

focusmainlythefeedbacksystemandanalyzetheFS.

1）whatisthefeedbacksystemandautomaticcontrol（transferfunction,meaningoftransferfunctionandsoon.）

2）analysisofthefeedbacksystem:

stabilitytrainsientperformance

Includethetimedomainanalysis（低阶low-order，高阶high-order，性能分析performance）,rootlocus,frequencyproperty.

15.DigitalElectronics:

studythediscretecomparedwiththeanalogelectronics

Maincomments:

logicconnectionbetweenthediscrete.

1）gatecircuit:

ANDORNOTXORandsoon,threeformsexpressionfunction,truthtable,circuitmap.

2）combinatoriallogiccircuit:

halfadder,fulladderanddifference

Methodofmorecomplexlogic:

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,并且画他们的特性曲线等）

BJT’application:

commoncollect,emission,basic.

16.ElectronicsPower:

itistechniquewhichcouldtransferandcontrolthepowerenergybyelectronicsdevice.

1）electronicsdevice:

uncontrollable（diode）,halfcontrollable（thyristor）,fullcontrollable（IGBT）

其原理和工作状态，工作特性等

2）transfer：

rectify,invertionandothertransfer.

RectifyingisaconvertfromACtoDC.InvertionisaconvertfromDCtoAC.

举例画图：

单相半波整流，单相全桥整流，VSIandCSI

Other:

AC-AC,DC-DC.

举例：

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:

noloadandloadoperation

Noload:

equivalentcircuit,impedance,

Becauseeddycurrentlosseshysteresislossandsoon,weregardedtheironlossasequivalentresistorRmtostandfortheheating,Xmisthemainfluxthroughtheironwhichgeneratesthereactance.

U2=E1-I2（R2+jX2）=E1-I2E2

DCmachine:

electricalmotorandgenerator.Itcanrealizetheconversionbetweendirectenergyandmachineenergy.

1）instrument:

Stator:

mainpole（producestheair-gapfield）,commutatingpole（improvecommunicationtoreducespark）,crush（inletandelicitDC,DV）,machinebase,coverandsoon.

Rotator:

armature（produceelectromagnetictorque）,commutator,rotateaxialandsoon.

2）principle:

DConthearmaturewindingcreateamagneticfieldtothestator.ItistheinteractionofthesetwomagneticfieldsthatleadstorotationofDCmachine.

Asgenerator:

Whenoriginalmotordrivearmaturecoilsrotatebetweenthemainpole.Theycutthemagnetic-curvesandproduceelectromotiveforce.Throughthecommutatorreverse,leadDCtoloads.

3）characteristic:

Ithasacommutator,soitismorecomplexininstrumentcomparedwithalternativemotor.

Originalmotor:

oilenergydriveittotherotator;

Commutator:

infirst,itconvertstheDCtoAC,inarmaturewinding,keepthedirectsamewithtorque.

Insecond,itconvertstheinductiveemforcetoDCforce.