资源描述:
《新能源发电风力发电简介》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、WindPowerCollegeofInformationandElectricalEngineeringLinQiMaPowerPrinciplesAirflowwindmillspinningactionthroughtheshaft,therotor(drivenbyafantoforceaircomponent)oftherotarypowertransmittedtothegeneratortoproduceelectricityEconomyInrecentyears,generallyspeaking,theuseofwindtogenerateel
2、ectricityhasreducedthecostofmany,evenwithoutotherexternalcosts,manysuitablelocationsinthecostofwindpowergenerationhasbeenlowerthantheinternalcombustionenginefuel.Since2004,windpowerhasbecomethecheapestinthenewenergyofall.In2005,thecostofwindenergyhasbeenreducedtoone-fifthofthe1990s,an
3、dwiththeuseofhigh-wattagegeneratorswillcontinuedownwardtrend.Globalwindpowercapacityin2007grew24percentto59.1millionkilowatts.Morethan10yearsago,lessthan5millionkilowattsup12times.Windistheworld'sfastestgrowingenergy.Overthepast10yearstheaverageannualgrowthisrateof29%.Bycontrast,thesa
4、meperiodgrewby2.5%peryearcoal,nuclearpower1.8percent,2.5percentnaturalgas,oil,electricitygenerationincreasedby1.7%.•developmentofeconomiccompetitivenessandpotential•landandecologicaldamageonthelower.•airpollutionandlesscarbonemissionsandotherenvironmentalcostsarelow.•windpowercanbe
5、distributedgeneration,powergenerationfacilitiesisnottoolargeconcentrationofriskAdvantagesofwindpowerDisadvantageofwindpower•Windpowergenerationintheecologicalproblemislikelytointerferewithbirds.Thecurrentsolutionistoshorepower.offshorepowergenerationefficiencyishigh,buthigherprices.•
6、Insomeareas,theeconomicsofwindpowerhasshortage,therearemanyareasofintermittentwind•requiresalotoflandtobuildwindfarms•windturbinenoisewillbeahugeissueGridFeatureSmallwindfarmandthemainnetworkmayleadtodeclineinthequalityofpowerinsomeareas,suchasharmonics,flicker,voltageandreactivepow
7、ermanagementmoredifficult.Therearetwowaystosolvetheseproblems:1,Fansandcontroltechnologytoimprove2,thestrengtheningofthelocalnetwork,configuretheappropriatereactivepowercompensationorvoltageregulationequipment.Medium-sizedwindfarm(50MWormore)andsmallwindpowerisdifferentfromthatingener
8、althe