毕业论文风力发电机技术参考文献外文.doc

毕业论文风力发电机技术参考文献外文.doc

《毕业论文风力发电机技术参考文献外文.doc》由会员分享，可在线阅读，更多相关《毕业论文风力发电机技术参考文献外文.doc（9页珍藏版）》请在冰点文库上搜索。

WindPowerGenerationTechnology

Windisveryimportantandreservesofenergy,itissafe,clean,andcanprovideabundantenergy,stabilityofthestream.Now,usewindpowerhasbecomethemainformofwind,theworld'sattention,andthefastest.

Windenergytechnologyisahigh-tech;itrelatesmorethanadozenofsubjects,includingmeteorology,aerodynamics,structuralmechanics,computertechnology,electroniccontroltechnology,materialscience,chemistry,electricalengineering,electricalengineering,sothedifficultyofasystemtechnologymaybeyondthedifficultyofspacetechnology.

First,Thedivisionofwindenergytechnologies:

Windenergytechnologyisdividedintolarge-scalewindpowertechnologyandsmallandmediumsizedwindpowertechnology,althoughbotharewindenergytechnology,workingprinciplesarethesame,thetwoindustriesarecompletelydifferent:

specificperformanceofthe"policyorientationisdifferentindifferentmarkets,differentapplications,appliedtechnologyisdifferent,totallybelongtothesamekindsofindustriesinthetwosectors.Therefore,inChinamachineryindustrymeetingonthewindtolargewindpowerandwindpowertodistinguishbetweensmallandmediumtreatedseparately.Inaddition,tomeetdifferentmarketneeds,extendingfromthewindandsolartechnologyhasnotonlypromotedthedevelopmentofsmallwindpowertechnology,butalsoforthesmallwindpoweropensupnewmarkets.

1.Large-scalewindpowertechnology:

Thetechnologyoflarge-scalewindpowerinChinastillhasacertaingapbetweeninternational.

Thetechnologyoflarge-scalewindpowertechnologyoriginatedinDenmarkandsomeotherEuropeancountries,thewindpowerindustrypropelledbythegovernment,becauseofthelocalwindresource-rich,large-scalewindpowertechnologyandequipmentaheadoftheinternationaldevelopment.Ourgovernmenthasalsostartedtoboostthedevelopmentoflarge-scalewindpowertechnology,andarangeofpoliciestoguideindustrydevelopment.Large-scalewindpowertechnologyareforthelarge-scalewindturbinedesign,windturbineapplicationsforlargeareaontheverystrictenvironmentalrequirementsareappliedtolimitedresources,windenergyresource-richwindfield,toacceptavarietyofperennialbadenvironmentthatsomethingwasthecomplexnatureoftheenvironment,highdemandsonthetechnologyupontheline.Currentlylarge-scalewindpowertechnologyingeneralisnotyetripe,thecoretechnologyoflarge-scalewindpowerstillrelyonforeign,nationalpolicyguidancetothedomesticwindpowerprojectlaunchedinvariousplaces,likecrazy,alloverlookforwardtoslice.Worthyofthename"madelectricity"throughthewindbegantoNegativeeffectandPrecautionpolicy.Althoughwindpowerprojectshavebeenstarted,butmoreascomplementarytype,completewithindependentintellectualpropertyrightsoflarge-scalewindpowersystemstechnologyandcoretechnologyfew.Thetestenvironmentneedstohavebeenalarge-scalewindpowertechnologytomature.Inaddition,thelarge-scalewindpowergenerationtechnologyandnetworktechnologyhasalsoimprovedanumberofissuesstillrestrictthedevelopmentoflarge-scalewindpowertechnology.

2.Thetechnologyofsmallwindpower:

ThetechnologyofsmallwindpowerinChinacouldcomparewiththeinternationaltechnology.

In1970s,thesmallwindpowertechnologyinChinahadbeendevelopedwhichhaswindresourcesforabettersituation,includingInnerMongolia,Xinjiangareas,thefirstsmallwindpowertechnologyiswidelyusedinpowertransmissionprojecttotheTownshipforaoneoffarmersandherdsmenhouseholdpowersupply,continuouslyupdatedasthetechnologyimprovementanddevelopment,notonlyalonebutalsowiththecombinationofcomplementaryopticalhasbeenwidelyusedindistributedindependentpowersupply.TheseyearsasChineseexportsofsmallandmediumwindsteadily.Internationally,China'ssmallandmediumsizedwindpowertechnologyandwindandsolartechnologyhaveleapttointernationalleadership.

Smallwindpowertechnologyismatureandrelativelysmallbynaturalresourceconstraints,distributedindependentpowerasasignificanteffectnotonlyconnected,butalsotheformationofmorestableandreliablecombinationofopticalcomplementarytechnologiessceneryMoreover,technologyiscompletelyself-localization.Bothfromatechnicalorpriceintheinternationalarenaareverycompetitive;withinternationalhasnowstartedasmallwindpowerinChinabrand;"wallflowerwallHong"hasintensified.Inthecountry'smosttechnicaladvantagesandcompetitivenessofsmallandmediumwindpowerhasalwaysbeenforgottenbythegovernmentandpolicyinacornerofreasons,intheearlystateshasbeentolocatethesmallandmediumsizedwindpowerinInnerMongolia,Xinjiang,farmersandherdsmeninremoteareastouseandreturnintotheagriculturalclass,lowcost,shoddy,low-performancereliability,security,nosecurityoflandmostlysparselypopulatedareas,mostofthedomesticmarketaresubjecttolossofreliabilityoflargepricewar;inpeoplesubconsciouslyformapoorunderstandingofSogetnationalattentionanddevelopment.

Domesticsmallwindpowertechnologyinthe"lowwindstart,lowwindspeedgeneration,pitchmoment,multipleprotection,andaseriesoftechnicalattentionbytheinternationalmarketandinternationalclients

unanimouslyapproved,hasaleadingposition.Moreover,thesmallandmediumWindpowertechnologyisultimatelydistributedindependentpowersupplytomeetend-market,ratherthanlarge-scalewindpowergenerationandnetworktechnologiestomeetthedomesticmonopolymarket,technology,updateratemustbeadaptedtoabroadandrapidlygrowingmarket.

3.windandsolartechnology:

WindistheintegrationoftechnicalskillsandtheSmallandMediumWindEnergySolarEnergyTechnology,combinesavarietyofapplicationsofnewtechnology,anditcoversmanyareas,thewiderangeofapplications,technicaldifferentiationissogreatthatavarietyoftechniqueswhichcanseparatematch.

Windandsolarpoweriscurrentlytheworldintheuseofnewenergytechnologythemostmature,mostlarge-scaleandindustrialdevelopmentoftheindustry,separateandindividualsolarwindhasitsdrawbacksofdevelopment,butbothwindandsolarpowercomplementarycombinedtorealizethetwonewconfigurationofenergyinnaturalresources,thetechnicalprogramsofintegration,performanceandpricecomparedtoaspectsofthenewenergysourceforthemostreasonable,notonlyreducesthedemandtomeetunderthesameunitcostandexpandthescopeofapplicationofthemarket,alsoincreasesthereliabilityoftheproduct.

Inaddition:

solarandwindpowerarebothnewenergy,solarenergythanthewindstartedtobelatemorethan30persolarPV/Wbythegeneralpublicaboutthepriceofrecognitioncanbeconvertedtoa15%rate;whilethepriceofsmallwindpowerconversionrateisonly1/5-1/6ofthesame60%-80%,onlythelowpriceWorsestillsuppressed,photoelectricproductionofpollutionontheenvironmentgreaterthanwindpower,thansubstantialdevelopmentinwindenergy,thiscomparisoncontrasttwistofmeditation......,ifpeopleusetheenergyfromthepointofview,ourgoalistomeettheelectricityfromwindpowergeneratingcapacitytomeasurethecostofsolarenergyeconomythanmany.

Wind,solarandwindpowerintegrationadvantages,notonlyforthe"energysaving,emissionreduction,"openedupnewhorizonsfortheapplicationofsciencetomeethumanneeds,fortheworldtoopenafourth

Revolution.

Second，Windpowerhasthreekindsofoperationmode:

oneisindependentoperationmode,usuallyasmallwindgeneratorstooneorafewfamiliestoprovidepower,storagebatteryenergy,toensuretheelectricitywithoutwind,Secondisthewindturbinesandotherpowermode（suchasenginepower）,combiningtoaunitoranvillageoranislandpowersupply,Threeiswindpowerintoconventionalpoweroperateandtoprovideelectricpowergrid,isoftenawindtensorhundredsofsetsinstalledwindgenerators,thisisthemaindevelopmentdirectionofwindpower.

Windpowersysteminthetwomainpartsiswindmachineandgenerators.Windturbinestochangefromadjustingtechnique,plasmageneratortowardVSCFtechnology,thisisthedevelopmenttrendofwindpowertechnologyisthecoretechnologynowadayswindturbines.Thefollowingsimpleintroductionofthistworespects.

1thechangeofwindplasmafromregulation

Windturbinesimpeller,willcapturethewindbyconvertingwindeffectsonthemechanicalwheel

torque.

ChangeisthechangefromadjustmentwithverticalaxiswindleafsurfaceofAngle,thusaffectingtheforceandtheblade,whenthewindresistanceincreases,theoutputpowerofthefaniskeptconstantpoweroutput.Byregulatingmode,fanfromtheoutputpowercurveissmooth.IntheratedwindleafAngleofattack,controllerwillbeplacednearzero,donotchange,approximatedistanceequaltoadjustforpulp.Intheratedwindabove,variablestructurecontrolfunctionfrompulp,adjustthebladeAngleofattack,theoutputpowercontrolinnearratings.Changefromthewindplasmastartingfromwindspeedissetslurrymachinedowntimeatlowimpactstressrelativeease.Thenormalwork,ismainlyadoptspowercontrol,inpracticalapplications,powerandspeedisdirectlyproportionaltotheset.Smallchangeswillcausethewindchangesofwind.

Duetothechangeofwindfrompulpbyadjustingtheimpactthanotherwindfromsmall,canreducematerialutilizationrate,reduceoverallweight.Andthechangeofwindfromacc