battery-modelling(电池模型)

ModelingandFaultDiagnosisofAutomotiveLead-AcidBatteriesSubmittedto:TheEngineeringHonorsCommittee119HitchcockHallCollegeofEngineeringTheOhioStateUniversityColumbus,OH43210byAhmedFasih222WLaneAvenue,#1007Columbus,OH43201DrGiorgioRizzoni,AdvisorApril2,2006AbstractInabidtoperformmodel-baseddiagnosticsontheelectricalnetworkofanautomobile,experimentalworkandanalysiswasconductedtomodelanautomotivelead-acidbatteryoverthedomaininwhichoneisexpectedtooperate.First,athoroughliteraturereviewdiscussespastattemptsatmodeling,aswellasstateandparameterestimation.Also,theliteratureontheagingandfailuremodesofbatteriesispresented.Next,themodelselectedisdescribed,consistingofalocallylineartime-invariantsystemapproximationofagloballynonlineartime-variantbattery.Toobtaintheparametersbestenablingthisapproximation,aseriesofexperimentswereperformedonabattery,themethodologiesofwhicharedetailed.Finally,thedetailsofparameterextractionarealsopresented,alongwiththeirresults.2AcknowledgmentsManywarmthankstoDrsRizzoniandGuezennecfortheirsupportandinspiration.ToJimShively,AnnalisaScacchioli,PierluigiPisu,andShawnMidlam-Mohler,andalltheresearchstaffandfacultyattheCenterforAutomotiveResearch.Alsotofellowstudentsandcolleagues,ZakariaChehab,WeiwuLi,JohnNeal,andLorenzoSerrao.AndDonButler,FrankOhlemacher,andDarrinOrr.AndofcourseDrsMoses,Cruz,andUtkinforoneheckofanAutumnquarter.Andnaturally,manythankstofamily,andthefriendsmadeoverthecourseofthisproject,especiallyinECEandChallengeX.3DatastoreAllthedataandprogramsusedinthisthesiswillbecollectedandplacedonaCD-ROMoraUSBdrive.Thiswillbereferredtoasthethesisdatastorethroughthiswork,andwillbedepositedwiththeBatterygroupattheCenterforAutomotiveResearch(CAR),atTheOhioStateUniversity.Thethesiswillrefertodirectoriesinthisdatastore,andwillserveasalengthyusermanualtothesoftwareanddata.4TableofcontentsAbstract...........................................................................................................................................2Acknowledgments...........................................................................................................................3Tableofcontents.............................................................................................................................51Introduction..................................................................................................................................71.1Theautomotiveelectricalnetwork.......................................................................................71.2Lead-acidbatteryprinciplesofoperation............................................................................81.3Overviewofbatterycharacteristics......................................................................................91.3.1Rechargeablevs.non-rechargeable..............................................................................91.3.2Capacity......................................................................................................................101.3.3Stateofcharge............................................................................................................111.3.4Surfacecharge............................................................................................................121.3.5DischargecurrentandthePeukertcurve....................................................................141.3.6Temperatureeffects....................................................................................................171.3.7Efficiency...................................................................................................................191.3.8Agingeffects..............................................................................................................191.4Motivationsforresearch....................................................................................................201.5Thesisoutline.....................................................................................................................222Literaturereview........................................................................................................................242.1Batterymodeling................................................................................................................242.1.1Chemicalmodeling.....................................................................................................242.1.2Computationalintelligence-basedmodeling..............................................................262.1.3Equivalentcircuitmodels...........................................................................................272.2Stateofchargeestimation..................................................................................................332.2.1Dischargetest.............................................................................................................342.2.2Currentintegration.............................................................................