永磁接触器操动机构优化设计

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1、东南大学硕士学位论文永磁接触器操动机构优化设计姓名：毛万镈申请学位级别：硕士专业：电气工程指导教师：林鹤云20090516ABSlRACTABSTRACTPermanentmagnetcontactor(PMC)isakindofswitcherbasedonaworkingprincipleofswitchingonoroffbyelectromagneticforceandholdingbyPM，whoseadvantagesareenergy-saving,noisereductionandSOon．Studyingonoptim

2、izationdesignofPMactuator(PMA)usingincontactorwillhaveveryvastimpactsonboththeoreticalendeavorsandpracticalapplicationsformasteringpivotaltechnologiesofdesignPMCandboostingitsbroadapplicationinindustry．ThethesisdepictsthesituationofresearchanddevelopmentaboutPMAofbothath

3、omeandabroadatfirst,thenintroducesthreePMA’sstructureandtheirworkingprinciples，includingsingle—stable，double-stableandseparatedmagneticcircuit．ThatwillprovideideasaboutchoosingareasonableresearchingsampleofPMA．Basedonthefiniteelementmethod(FEM)ofsteadymagneticfield，theel

4、ectromagneticforceandfluxatdifferentdisplacementofironCOreandcurrentofcoilarecalculatedandthesestaticdataareusedtobuildaplanargrid，whichisusedforsimulatingdynamicperformancesofPMAbyRunge-Kutta．ThetwogepsofferaneffectiveanalysismethodandapproachforoptimizationdesignofPMA．

5、Takingcylindricalsingle—steady—statePMCasresearchingsample，manyfactorsthatwillinfluencethestaticanddynamicperformancesofPMAareanalyzed，suchasthecurveofitsforceandanti-force，thevolumeofPMAandSOon．Consideringtherequestofperformancesandconstraints，theinitialparametersofPMAa

6、redesignedbymeansofmagneticcircuit．Amulti-objectivedynamicoptimizationmodelisthenestablished，inwhichsixprimarystructuralparametersofPMAareselectedasoptimizationvariablesandPMA'svolume，theaveragemakingtimeandimpactingenergyofmakingphaseform0。to180。aretakenasoptimizationob

7、jectives，involvingconstraintsaboutstructuresize，safetyfactor,maxfluxdensityinironandmakingvelocity．Themodelissolvedbygeneticalgorithmandsimulatedannealingalgorithmrespectively．ThePMA'soptimizationdesignprocessisformulatedandsoftwarebasedonitisdevelopedinthecompilerenviro

8、nmentofc++Builder6．0，whichprovidesfunctionsofimporting，exportingandsavingdataautomatically,thentheresul