基于LQG-I的风力发电机组控制系统设计-豆柴文库

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基于LQG-I的风力发电机组控制系统设计
Title:ControlSystemDesignofWindTurbineGeneratorUnitBasedonLQG-I
Abstract:
Withtheincreasingglobaldemandforrenewableenergysources,windturbinegeneratorshavebecomeapopularchoiceforelectricityproduction.However,duetothenon-linearanduncertainnatureofwindandthemechanicaldynamicsofwindturbinegenerators,achievingstableandefficientpowergenerationremainsamajorchallenge.ThispaperproposesacontrolsystemdesignforwindturbinegeneratorunitsusingtheLinearQuadraticGaussianwithIntegrator(LQG-I)controltechnique.TheLQG-Icontrolapproachenablesrobustcontrolofthewindturbinegeneratorunit,improvingitsperformanceandoverallpowergenerationefficiency.Theproposedcontrolsystemwastestedusingsimulationmodelsandshowedpromisingresultsintermsofpoweroutputregulationanddisturbancerejection.
1.Introduction
Windenergyisaclean,renewable,andabundantsourceofenergy,makingwindturbinegeneratorunitsincreasinglypopularforpowergeneration.However,thevariabilityanduncertaintyofwindspeedintroducechallengesformaintainingstablepoweroutput.Controltechniquesplayacrucialroleinmaximizingpowergenerationefficiencyandensuringgridstability.ThispaperaimstodesignacontrolsystembasedontheLQG-Iapproachforwindturbinegeneratorunits,consideringthesystem'snon-linearnatureandexternaldisturbances.
2.WindTurbineGeneratorUnitModel
Thewindturbinegeneratorunitmodelconsistsofseveralcomponents,includingthewindturbinerotor,gearbox,generator,andpowerelectronicsystems.Adetailedmodelisdevelopedtocapturethedynamicsofeachcomponentandtheirinteractions.Themodeltakesintoaccountthenon-linearbehaviorofthewindturbineandthemechanicaldynamicsoftherotorandgenerator.Byanalyzingthesystemdynamics,thecontrolobjectivesandrequirementsaredetermined.
3.LQG-IControlDesign
TheLQG-Icontroltechniquecombinesthelinearquadraticregulator(LQR)andKalmanfilter(KF)toachieverobustcontrolinthepresenceofdisturbancesanduncertainties.TheLQG-Icontrollerdesigninvolvesformulatingthestate-spacemodelfromthewindturbinegeneratorunitmodel,designinganLQRcontrollertodetermi