Large-scalewindturbinegeneratorsystemshavestrongnonlinearmultivariablecharacteristicswithmanyuncertainfactorsanddisturbances.Automaticcontroliscrucialfortheefficiencyandreliabilityofwindturbines.Onthebasisofsimplifiedandpropermodelofvariablespeedvariablepitchwindturbines,theeffectivewindspeedisestimatedusingextendedKalmanfilter.Intelligentcontrolschemesproposedinthepaperincludetwoloopswhichoperateinsynchronismwitheachother.Atbelow-ratedwindspeed,theinnerloopadoptsadaptivefuzzycontrolbasedonvariableuniverseforgeneratortorqueregulationtorealizemaximumwindenergycapture.Atabove-ratedwindspeed,acontrollerbasedonleastsquaresupportvectormachineisproposedtoadjustpitchangleandkeepratedoutputpower.Thesimulationshowstheeffectivenessoftheintelligentcontrol.