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1、IEEETRANSACTIONSONINDUSTRIALELECTRONICS,VOL.60,NO.12,DECEMBER20135737APermanent-MagnetLinearMotionDrivenKineticEnergyHarvesterPengZeng,StudentMember,IEEE,andAlirezaKhaligh,SeniorMember,IEEEAbstractThismanuscriptpresentsadouble-sidedflat-typepowerwithsmallsize,hi
2、ghkinetic-to-electricalenergycon-permanentmagneticlinearenergyharvestertoscavengekineticversionefficiency,efficientusageofpermanent-magnet(PM)powerfromlinearmotions.Thedynamicsystemmodelofthematerial,andeasyconnectionofarmaturewindingstotheload.lineargeneratorisa
3、nalyticallydrivenandanalyzedbyaninnova-Thismanuscriptintroducesaninnovativemodeltocalculatetivestate-basedapproach.Theanalyticalequationsonmaximumpowergenerationspecificfornon-resonantapplicationssuchastheoptimumdampingratio,selecttheoptimumspringconstant,humanf
4、ootmotionarederived.Bothmagneticcircuitanalysisandextractmaximumoutputpowerforenergyharvesterwork-andthefinite-elementanalysissimulationarecarriedoutontheinginvariousstates.Inaddition,ameso-scalePMlinearenergylinearmachinetoinvestigateitsperformance.Underthetypi
5、calharvesterwithinnovativestructure,highpower-density,andhorizontalfootmotionvelocityof4.5m/s,theproposedenergyeconomicalusageofPMmaterialisproposed.Moreover,the-harvestergenerates674mWelectricpowerwiththepowerdensityashighas3.4mW/cm3.Amacro-scaleproof-of-conce
6、ptmachineoreticalanalysis,numericalsimulation,andproof-of-conceptisprototypedtoverifytheperformanceofthelinearmachineprototypingwithexperimentalresultsoftheproposedmachineandvalidatetheanalysis,simulation,andtheproposedmodelingarepresentedindetail.approach.This
7、manuscripthasbeenorganizedasfollows.SectionIIIndexTermsElectromagneticgenerator,energyharvesting,addressesareviewofthestate-of-the-artwearableenergyhar-footmotion,linearmovement,permanent-magnetlinearmachine.vestingtechniques.Thestructureoftheproposedwearableen
8、ergyharvesterwiththedynamicsystemmodeling,mag-I.INTRODUCTIONneticcircuitanalysis,andfinite-elementanalysis(FEA)sim-ulationarepresentedinSectionIII.SectionIVelucidatestheUETOt
