Wind_Turbine_Power_CaptureControl_With_Robust_Estimation.pdf

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1、ProceedingsoftheASME2010DynamicSystemsandControlConferenceDSCC2010September12-15,2010,Cambridge,Massachusetts,USADSCC2010-4112WINDTURBINEPOWERCAPTURECONTROLWITHROBUSTESTIMATIONTonyHawkinsWarrenN.WhiteMechanicalandNuclearEngineeringMechanicalandNuclearEngineeringKansasStateUnivers

2、ityKansasStateUniversityManhattan,KS66506Manhattan,KS66506gah8833@ksu.eduwnw@ksu.eduGuoqiangHuFaryadDarabiSahnehMechanicalandNuclearEngineeringMechanicalandNuclearEngineeringKansasStateUniversityKansasStateUniversityManhattan,KS66506Manhattan,KS66506gqhu@ksu.edufaryad@ksu.eduABST

3、RACTαControlGainArobustcontrolschemetooptimizethepowercaptureofawindturbineisproposed.AnovelidentificationtechniqueisβBladePitchangle–degreesusedbothtoestimatetheunknownaerodynamicpropertiesandβdDesiredBladePitch–degreestoregulatetheturbinespeed.ALyapunov-basedapproachisβ*Optimal

4、BladePitch–degreesadoptedtochoosethesetpointchangedirectionsothatpowerβcControlGaincapturecanbemaximizedforthegivenwindspeedandenvironmentalparameters.ThesetpointconsistsoftheturbineγβBladePitchAdaptationConstant–dimensionlesstipspeedratioandtheturbinebladepitch.Theefficacyoftheγ

5、λTipSpeedAdaptationConstant–dimensionlesscontrollerisdemonstratedthroughsimulation.λTip-SpeedRatio–dimensionlessλdDesiredTip-SpeedRatio–dimensionlessNOMENCLATURE3ρAirdensity–kg/m2ARotorSweptArea–mτaeroAerodynamicTorque-N·m2CDDampingCoefficient-kg·m/sτcGenerator(control)torque-N·m

6、CpRotorPowerCoefficient–dimensionlessωAngularShaftVelocity–rad/s*CpOptimalPowerCoefficient–dimensionlessω*OptimalAngularVelocity–rad/s2JRotorInertia–kg·mωdDesiredAngularVelocity–rad/sNControllerAuxiliaryTermPaeroPowerCapturedbyRotor-N·m/sPavailPoweravailablefromwind-N·m/sI.INTROD

7、UCTIONWindturbinesaremachinesthatprovidetheenergyRSweptAreaRadius–mindustrywithacleanalternativetoburningfossilfuelsintheeControllerErrorSignal–rad/secgenerationofelectricpower.Theimplementationofwind?̂EstimationofAerodynamicTorque-N·mturbineshasincreaseddrasticallythroughoutthep

8、astdecade.Thishasdrivenresearcherstoexam