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基于分数阶滑模速度观测器的三电平逆变器驱动PMSM的模型预测电流控制（英文）.docx

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基于分数阶滑模速度观测器的三电平逆变器驱动PMSM的模型预测电流控制（英文） Title:ModelPredictiveCurrentControlofPMSMDrivenbyThree-LevelInverterBasedonFractional-OrderSlidingModeVelocityObserver Abstract: Thispaperpresentsamodelpredictivecurrentcontrolstrategyforapermanentmagnetsynchronousmotor(PMSM)drivenbyathree-levelinverter.Thecontrolapproachutilizesafractional-orderslidingmodevelocityobservertoestimatethemotorspeedandimplementsamodelpredictivecontrol(MPC)algorithmtoregulatethemotorcurrents.Theproposedcontrolmethodaimstoachieveaccuratecurrenttrackingandimprovethedynamicresponseofthesystem.Inaddition,thefractional-orderslidingmodeobserverprovidesenhancedrobustnessagainstuncertaintiesanddisturbances.Theperformanceofthecontrolmethodisevaluatedthroughsimulations,andtheresultsdemonstratetheeffectivenessandsuperiorityoftheproposedapproach. 1.Introduction: Theincreasingdemandforhigherefficiencyandimproveddynamicresponseinmotordrivesystemshasledtoextensiveresearchanddevelopmentofadvancedcontrolalgorithms.ThePMSMisawidelyusedmotorinvariousapplicationsduetoitshighpowerdensity,highefficiency,andexcellentcontrollability.Thethree-levelinverterisapopularchoiceforPMSMdrivesasitoffersreducedswitchinglosses,enhancedDCbusutilization,andimprovedoutputvoltagequality.However,achievingaccuratecurrentcontrolandhighspeedperformanceinPMSMdrivesisstillachallengingtaskduetononlinearities,parametervariations,anduncertainexternaldisturbances. 2.LiteratureReview: Inrecentyears,severalcontroltechniqueshavebeenproposedtotacklethechallengesinPMSMdrives.Modelpredictivecontrol(MPC)hasgainedattentionduetoitsabilitytohandlemultivariablesystemswithinputandoutputconstraints.Slidingmodecontrol(SMC)isanotherpopularmethodthatprovidesrobustnessagainstparameteruncertaintiesanddisturbances.Fractional-ordercontrolhasalsobeenutilizedtoimprovesystemperformance,takingadvantageofthenon-integerorderdynamics. 3.Fractional-OrderSlidingModeVelocityObserver: Theproposedcontrolstrategycombinestheadvantagesoffractional-ordercontrolandslidingmodecontrolby