英语风电ppt课件.ppt

NewEnergyResourcesandelectricitygeneration 1 Traditionalenergyandelectricitygeneration Althoughtherearemanydifferentsourcesofenergyavailable morethanthree quartersoftheenergyusedindevelopedcountriescomesfromoil gasandcoal Currentlythethermalpowerplantsofourcountry whichtakeupmorethan70 oftheinstalledcapacityofChina selectricalpowersystem usecoalasfuel 2 Existingenergy Existingpowersourcesofenergyarethreekinds namely power powerand power Witheconomicdevelopment socialprogress peopleputforwardhigherrequirementsofenergy Findnewenergysourcesbecomeanurgentissuefacinghumanity thermal hydro nuclear 3 Theshortcomingsofthermalpower Thermalpowerplantsarethosemakinguseoffuelslikecoal petroleumandnaturalgas Ontheonehandthelimitedreservesoffossilfuels themoreburning thelessleft whichisfacingthedangerofdepletion Itisestimatedthatworldwideoildepletionputanother years Ontheotherhandburningfuelwillemit and therebycausingthe effectand rain deteriorationofglobalenvironment 30 carbondioxide sulfuroxides greenhouse acid 4 Theshortcomingsofhytro power Watertodrownlargeareasofland mayleadto destructionandifthelarge oncecollapse theconsequenceswouldbedisastrous Inaddition acountry swaterresourcesarelimited butalsobytheimpactoftheseason ecological reservoirs 5 Whatdoyouknowaboutnewenergy Windpower Solarpower Tidalpower 6 Windenergy Windpoweristheconversionofwindenergyintoausefulformofenergy suchasusingwindturbinestomakeelectricity windmillsformechanicalpower windpumpsforpumpingwaterordrainage orsailstopropelships 7 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 8 9 高空风能发电High altitudewindpower 10 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 11 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 12 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 13 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 14 Windturbinecomposeofthehead swivel rearwingandtheblade风力发电机由机头 转体 尾翼 叶片组成 15 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 16 机头的转子是永磁体 定子绕组切割磁力线产生电能 Headoftherotorispermanentmagnet thestatorwindingscuttingmagneticlinestoproduceelectricity 17 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 18 19 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 20 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 21 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 22 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 23 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 24 OneoftheecologicalproblembroughtbytheWindpowergenerationisthatwindturbinedisturbthelifeofbirds Thecurrentsolutionistogenerateelectricityfarawayfromtheshore powergenerationefficiencyishigh buthigherprices Insomeareas windpowerbringloweco