Wind Power Generation

风力发电技术WindPowerGenerationINDEX1.Windpowerandenergy2.Distributionofwindenergyinchina3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX1.Windpowerandenergy.2.Distributionofwindenergyinchina.3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX1.WindpowerandenergyoutlineWindenergy-----thekineticenergyoftheairwindspeeddensityofthewindSizeofthewindSolarenergyreachingtheearthOnly2%isconvertedintowindenergyThen,globalwindenergyapproximately2.74*10^9MWAbout2*10^7MWcanbeused1.Windpowerandenergy“transfer”Thespeedofthewind:theenergyavailableinthewindisproportionaltothecubeofthewindspeed.Thevariabilityofthewindspeedovertime:averageannualwindspeedismoreimportantthanthemaximumwindspeed.TheBetzlimit:notalltheenergycanberemovedfromthewind.Themostenergythatcanbeextractedinanidealsystem59%.1.Windpowerandenergy1.Windpowerandenergy.2.Distributionofwindenergyinchina.3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX2.DistributionofwindenergyinchinaStandalonesystemsAccordingtothestatisticsandthecalculationofthenationalobservatory(天文台),partofthewindenergyinformation,China'swindenergydistributionandthepercentageofthecountry'stotalareaisthefollowingtable.IndexRichareaRelativelyrichareaAvailableareaPoorareaTheannualeffectivewindpowerdensity(W/m)200150-20050-15050Years≥3m/scumulativehoursnumber(h)50004000-50002000-40002000Years≥6m/scumulativenumberofhours(h)22001500-2200350-1500350Percentageofthecountry'stotalarea(%)81850242.Distributionofwindenergyinchina1.Windpowerandenergy.2.Distributionofwindenergyinchina.3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX3.Introduceofwindpowergeneration(HorizontalAxisWindTurbine)水平轴风力机(VerticalAxisWindTurbine)垂直轴风力机1.Windpowerandenergy.2.Distributionofwindenergyinchina.3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX叶片blade机舱nacelle轮毂hub塔架tower基础base轮毂齿轮箱油冷却器发电机变桨驱动旋转罩机舱低速轴热交换器控制箱旋转接头支撑轴承偏航驱动机舱座通风隔离减震风力发电机组机舱结构图4.SystemcomponentsandmainlycontrolfunctionsNacelle(机舱)1.Yawcontrol（偏航控制）Thedirectionofthewindisalwayschanging.Weneedtodesignyawcontrolalgorithm（偏航控制算法）,ensurethatthefanisalwaysrightinfrontofthewinddirection,toobtainthemostenergyfromthewind.WhenthewinddirectionAngleofthefandrift(偏转)exceedsacertaincircle(forinstance3circles),controlprogramshouldbedesignedtounlockthecable(解缆)topreventtheinternalcablewinding(电缆缠绕).2.Pitchcontrol(桨距控制)Whenthewindspeedexceedstheratedwindspeed,thewindpowerequipmentmaybedamaged.controlalgorithmshouldbedesignedtoguaranteethesafeandstableoperationoftheunit,throughchangingthedegreeofthepitch.3.Speedcontrol(转速控制)4.Fanautomaticstartupcontrol（风机全自动启动控制）4.Systemcomponentsandmainlycontrolfunctions1.Windpowerandenergy.2.Distributionofwindenergyinchina.3.Introduceofwindpowergeneration.4.Systemcomponentsandmainlycontrolfunctions.5.Windpowermarket,SustainableDevelopmentINDEX5.Windpowermarket,SustainableDevelopmentOverthepasttwoyears,overcapacity(市场饱和),inadequategovernmentpolicies,viciousmarketcompetition（恶性竞争）,resultingintheshrinkingofthewindpowermarket.from:Then,Whatweshoulddotomaintainthesustainable、healthydevelopmentofwindpowermarket?1).Sufficientcapitalinvestment2).Positivepolicy3).Self-disciplineofmarketingmanagerTHANKSFORYOURATTENTIONANYQUESTIONS?