英语PPT：风电.ppt

NewEnergyResourcesandelectricitygeneration Traditionalenergyandelectricitygeneration Althoughtherearemanydifferentsourcesofenergyavailable morethanthree quartersoftheenergyusedindevelopedcountriescomesfromoil gasandcoal Currentlythethermalpowerplantsofourcountry whichtakeupmorethan70 oftheinstalledcapacityofChina selectricalpowersystem usecoalasfuel Existingenergy Existingpowersourcesofenergyarethreekinds namely power powerand power Witheconomicdevelopment socialprogress peopleputforwardhigherrequirementsofenergy Findnewenergysourcesbecomeanurgentissuefacinghumanity thermal hydro nuclear Theshortcomingsofthermalpower Thermalpowerplantsarethosemakinguseoffuelslikecoal petroleumandnaturalgas Ontheonehandthelimitedreservesoffossilfuels themoreburning thelessleft whichisfacingthedangerofdepletion Itisestimatedthatworldwideoildepletionputanother years Ontheotherhandburningfuelwillemit and therebycausingthe effectand rain deteriorationofglobalenvironment 30 carbondioxide sulfuroxides greenhouse acid Theshortcomingsofhytro power Watertodrownlargeareasofland mayleadto destructionandifthelarge oncecollapse theconsequenceswouldbedisastrous Inaddition acountry swaterresourcesarelimited butalsobytheimpactoftheseason ecological reservoirs Whatdoyouknowaboutnewenergy Windpower Solarpower Tidalpower Windenergy Windpoweristheconversionofwindenergyintoausefulformofenergy suchasusingwindturbinestomakeelectricity windmillsformechanicalpower windpumpsforpumpingwaterordrainage orsailstopropelships 发动机箱Enginebox包含 变速箱Transmission发电机Generator电子控制装置Electroniccontrol偏航控制器Yawcontroller制动装置BrakeDevice 高空风能发电High altitudewindpower 发动机箱Enginebox变速箱Transmission发电机Generator电子控制装置Electroniccontrol偏航控制器Yawcontroller制动装置BrakeDevice Phraseaboutwindpower 风轮windrotor垂直轴风力机verticalaxiswindturbine水平轴风力机horizontalaxiswindturbine风轮额定转速ratedturningspeedofrotor风轮最高转速maximumturningspeedofrotor风轮扫掠面积rotorsweptarea风场电器设备siteelectricalfacilities 风力机windturbine风电场windpowerstation风力发电机组windturbinegeneratorsystem风力机verticalaxiswindturbine风特性windcharacteristic平均风速meanwindspeed下风向downwind上风向upwind安全风速survivalwindspeed极端风速extremewindspeed Tower支撑转子和发动机箱 并将整个装置上升到更高位置 使叶片不会碰到地面 Rotorblade捕获风能并将其转换为转轴的转动能 Windturbinecomposeofthehead swivel rearwingandtheblade风力发电机由机头 转体 尾翼 叶片组成 叶片用来接受风力并通过机头转为电能 Bladestoacceptthewindintoelectricitythroughthenose尾翼使叶片始终对着来风的方向从而获得最大的风能 Tailtowardmakethebladetothewinddirection itisalwaystogetthebiggestwindenergy转体能使机头灵活地转动以实现尾翼调整方向的功能 Swivelheadallowstheflexibilitytoadjustthedirectionofrotationinordertoachievethefunctionoftail 机头的转子是永磁体 定子绕组切割磁力线产生电能 Headoftherotorispermanentmagnet thestatorwindingscuttingmagneticlinestoproduceelectricity 机舱Engineroom转子叶片Rotorblade轴心Axis低速轴Thelowspeedshaft齿轮箱Gearbox偏航装置Yawingdevice电子控制器Electroniccontroller液压系统Hydraulicsystem发电机Generator塔Tower 风力发电机结构 史蒂夫 索耶关于风能的发言 史蒂夫 索耶 风能确是一种主要的供电技术 发展风能将使电力部门在十年内大大减少温室气体排放量 SteveSawyer Windpowerisreallythemainsupplysidetechnologythatcanmakeadifferenceintheshorttermintheperiodbetweennowand2020 toreduceemissionsinthepowersector 您正在收听到的是世界风能协会职员史蒂夫 索耶的讲话 世界风能协会是国际风力发电产业的同行公会 索耶说 风能正得到日益广泛的应用 如今各国政府都在考虑如何以低能耗发电 同时减少温室气体排放 抵抗全球变暖 他说去年全球风力发电总量增加了40 You relisteningtoSteveSawyeroftheGlobalWindEnergyCouncil atradeassociationthatrepresentsthewindindustryattheinternationallevel Useofwindpowerisontherise Sawyersaid Governmentsaroundtheworldareconsideringhowtogeneratemoreelectricityandemitfewerofthegreenhousegasesthoughttobewarmingtheplanet Sawyersaidwindpowerproductiongrewby40percentin2009 acrosstheglobe 史蒂夫 索耶 我觉得中美两国市场的迅猛增长是近几年来最明显的趋势 中国已成为市场增长率最高的国家 今年它将成为世界上最大的电力消费国 而美国去年刚成为全球最大的电力市场 SteveSawyer Thebiggesttrend Isuppose inthelastfewyearsisthat isthedramaticgrowthinthemarketsinChinaandtheUnitedStates Chinahasbecomethefastestgrowingmarketintheworldbyfar Itwouldbethesinglelargestmarketthisyear AndtheUnitedStatesjustlastyeartookoverfirstplace 索耶表示 目前风力发电仅占美国电力市场的2 随着电网升级 到2030年风能的市场份额将上升20 甚至更多 FortheU S Sawyersaid upgradestotheelectricgridcouldhelpraisewindpower ssharefromabout2 oftotalelectricitytodayto20 ormore bytheyear2030 史蒂夫 索耶 我们国家拥有丰富的电力资源 从这个角度来看 供电是不成问题的 然而真正的挑战在于如何有效利用这些资源 充分保证电力市场的供应SteveSawyer Youcouldsupplythewholecountrywithelectricity noproblem intermsoftherawresource Butwehavetoactuallycapturethatandthengetittothemarkets That sthechallenge Greatereconomiccompetitivenessandpotentialdevelopment Lowerdamagetothelandandecologicalcondition Lessairpollutionandlesscarbonemissionsandlessenvironmentalcosts Windpowercanbeusedfordistributedgeneration thereislessriskofpowergenerationfacilitiesfortheyarenotconcentratedtogether 经济竞争力和潜在能力的发展 土地和生态破坏减至最少 空气污染和碳排放等环境成本低 风能是分布式发电的 发电设施不是太大的风险集中 OneoftheecologicalproblembroughtbytheWindpowergenerationisthatwindturbinedisturbthelifeofbirds Thecurrentsolutionistogenerateelectricityfarawayfromtheshore powergenerationefficiencyishigh buthigherprice