风机结构-双馈.ppt

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1、RotorMainshaftGearboxYawbearingGeneratorRadiatorYawmotorControllerAnemometerWindVaneMechanicalbrakeSmallshaftEND机舱RotorTherotorisboltedontothebigmainshaft.Thelargerotorhasthreeblades,whichcatchthewind.Thewindwillturntherotorifthereisenoughpowerinthewind.返回风轮Gearbox

2、Therotorturnswithapp.22revolutionsperminute(RPM).Butthegeneratorhastoturn1500revolutionsperminute.Thegearboxconvertsthe22revolutionsto1500revolutions.返回齿轮箱返回齿轮箱-外形返回齿轮箱-内部GeneratorThegeneratormakeselectricitywhenitturns.Thecurrentissentdownthroughthetowerinlargeel

3、ectricitycables.返回发电机返回发电机YawmotorTheyawmotorturnsthenacellesothattherotorfacesthewind.Themotorhasacamwheelwhichfitsintothelargeyawbearingcamwheel.Thecontrollertellstheyawmotorwhentoturnthenacelle.返回偏航电机返回偏航电机AnemometerTheanemometermeasuresthewindspeed.Itsendsinfo

4、rmationaboutthewindspeedtothecontrollerallthetime.返回风速仪MechanicalBrakeThemechanicalbrakeisusedwhenthewindturbinehastoberepairedorithastobeserviced.Itensuresthattherotorwillnotstartturning.返回机械刹车机构MainShaftTherotorturnsthelargeshaft.Theshaftisconnectedtothegearbox.T

5、herotorusesalargeforcetoturntheshaft.Thereforetheshafthastobeverythick.返回主轴返回主轴YawbearingThelargecamwheelismountedontothetower.Thecamwheeloftheyawmotorengagesthelargecamwheelandturnsthenacellewiththerotorintothewind.返回偏航轴承返回偏航轴承RadiatorWhenthegeneratorisrunningitge

6、tsveryhot.Butifitbecomestoohotitwillbreakdown.Thisiswhyithastobecooleddown.Insomewindturbines(suchasthisone)thegeneratoriscooledbywater.Theradiatorcoolsthewater返回冷却器ControllerThewindturbinecontrollerisacomputerthatcontrolsthemanypartsofwindturbine.Thecontrolleryaws

7、thenacelleagainstthewindandallowsthewindturbinerotortostartwhentheanemometertellsitthatthereisenoughwind.返回控制器返回控制器WindVaneThewindmakesthewindvaneturn.Thewindvanetellsthecontrollerwherethewindcomesfrom.Thecontrollerthentellstheyawmotortoyaw–thatmeansturn–therotorupa

8、gainstthewind.返回风向标返回风向标SmallshaftThesmallshaftleadsthepowerfromthegearboxtothegenerator.Thesmallshaftrunsveryquickly,approx.1500re