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电动汽车用PMSM无位置传感器控制策略研究 Title:StudyonPositionSensorlessControlStrategyforPMSMinElectricVehicles Abstract: Withtherapiddevelopmentofelectricvehicles(EVs),thereisagrowingdemandforefficientandreliableelectricpropulsionsystems.PermanentMagnetSynchronousMotors(PMSMs)arewidelyusedinEVsduetotheirhighefficiencyandpowerdensity.TraditionalPMSMcontrolstrategiesrelyonpositionsensorstoaccuratelydeterminetherotorposition,butthesesensorscanbecostlyandpronetofailure.ThisresearchpaperaimstoinvestigateandanalyzepositionsensorlesscontrolstrategiesforPMSMsinEVs,focusingontheuseofsensorlesstechniquesbasedonback-electromotiveforce(EMF)andKalmanfilteringalgorithms.Theproposedcontrolstrategyiscapableofaccuratelyestimatingtherotorpositionandachievingrobustmotorcontrolintheabsenceofpositionsensors.Experimentalresultsdemonstratetheeffectivenessandfeasibilityoftheproposedcontrolstrategy,providingvaluableinsightsforthedesignandimplementationofsensorlesscontrolsystemsinelectricvehicles. 1.Introduction 1.1Background 1.2Objective 2.LiteratureReview 2.1OverviewofElectricVehiclePropulsionSystems 2.2PermanentMagnetSynchronousMotorsinElectricVehicles 2.3PositionSensorlessControlStrategies 3.ProposedControlStrategy 3.1Back-EMFBasedSensorlessControl 3.2KalmanFilteringAlgorithm 3.3IntegrationofBack-EMFandKalmanFiltering 4.SystemModelingandSimulation 4.1MathematicalModelingofPMSM 4.2SimulationSetupandParameters 4.3SimulationResultsandAnalysis 5.ExperimentalEvaluation 5.1ExperimentalSetupandProcedure 5.2ValidationofSensorlessControlStrategy 5.3PerformanceComparisonwithSensor-basedControl 6.Discussion 6.1EvaluationofProposedControlStrategy 6.2AdvantagesandLimitations 6.3PotentialApplicationsandFutureResearch 7.Conclusion 7.1SummaryofFindings 7.2ImplicationsandRecommendationsforPractitioners 7.3ContributiontotheField References 1.Introduction 1.1Background Theincreasedadoptionofelectricvehicles(EVs)isdrivenbyconcernsoverenvironmentalpollutionanddependenceonfossilfuels.Electricpropulsionsystemsplayacrucialrolei