Online battery state of health estimation based on Genetic Algorithm for electric and hybrid vehicle applications基于遗传算法和混合动力汽车应用健康在线估计电池状态

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1、JournalofPowerSources240(2013)184e192ContentslistsavailableatSciVerseScienceDirectJournalofPowerSourcesjournalhomepage:www.elsevier.com/locate/jpowsourOnlinebatterystateofhealthestimationbasedonGeneticAlgorithmforelectricandhybridvehicleapplicationsqZhengChen,ChuntingChris

2、Mi*,YuhongFu,JunXu,XianzhiGongDepartmentofElectricalandComputerEngineeringDepartment,UniversityofMichigan-Dearborn,4901EvergreenRoad,Dearborn,MI48188,USAhighlightsProposedanonlinebatterystateofhealthestimationmethodbasedonbatterymodelparameters.GeneticAlgorithmisemployed

3、toestimatethebatteryparameters.DeterminethebatterySOHinrealtimebasedonestimatedbatteryparameters.DevelopedaformulatocalculatetheSOHbasedontheestimateddiffusioncapacitance.TemperatureinfluenceisconsideredtoimprovetherobustnessofSOHestimation.articleinfoabstractArticlehist

4、ory:Stateofhealth(SOH)ofbatteriesinelectricandhybridvehiclescanbeobservedusingsomebatteryReceived21January2013parameters.BasedonaresistanceecapacitancecircuitmodelofthebatteryanddataobtainedfromReceivedinrevisedformabundantexperiments,itwasobservedthatthediffusioncapacitan

5、ceshowsgreatcorrelationwithSOH26March2013ofalithium-ionbattery.However,accuratemeasurementofthisdiffusioncapacitanceinrealtimeinanAccepted27March2013electricorhybridelectricvehicleisnotpractical.Inthispaper,GeneticAlgorithm(GA)isemployedtoAvailableonline11April2013estimate

6、thebatterymodelparametersincludingthediffusioncapacitanceinrealtimeusingmea-surementofcurrentandvoltageofthebattery.ThebatterySOHcanthenbedeterminedusingtheKeywords:identifieddiffusioncapacitance.TemperatureinfluenceisalsoconsideredtoimprovetherobustnessandStateofhealth(SOH)

7、ElectricvehiclesprecisionofSOHestimationresults.Experimentalresultsonvariousbatteriesfurtherverifiedthepro-Batterymodelposedmethod.GeneticalgorithmÓ2013ElsevierB.V.Allrightsreserved.DiffusioncapacitancePrediction-errorminimization1.IntroductionontheknowledgeofinitialSOC.Oth

8、erintelligentmethods,suchasneuralnetworkandextendedKalmanfilter(EKF),havebeenLithium-ionba