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1、北京機(jī)械工業(yè)學(xué)院碩士學(xué)位論文無刷直流電動(dòng)機(jī)控制系統(tǒng)研究姓名：王芳申請學(xué)位級(jí)別：碩士專業(yè)：檢測技術(shù)與自動(dòng)化裝置指導(dǎo)教師：厲虹20071201AbstractABSTRACTBrushlessDCmotor(BLDCM)isanewtypeofmotorwhichisdevelopedonbaseofDCmotorduetotheadvancementofthepowerelectronics，motorcontroltechnology,microprocessorandtheappearanceof
2、newtypeofpermanentmagnetmaterials．BecausethistypeofmotornotonlyhavethemeritoftheACinductionmotorforsimplestructure，reliableoperationandeasyupholdingbutalsohavethemeritoftheDCmotorforhi．ghperformanceandeasycontr01．Ithasbeenwidelyusedintheindustrialcontr
3、olandhomeappliancesrecently．ThepapermainlystudiedthespeedcontrolofBLDCM．BasedonthemathematicalmodelofBLDCM，anovelmethodformodelingandsimulationofBLDCsysteminMatlabhasbeenproposed．InMatlab／Simulink，theisolatedfunctionalblocks，suchasBLDCblock，Hysteresisc
4、urrentcontrollerblock,Speedcontrollerblockhavebeenmodeled．Bytheorganiccombinationoftheseblocks，themodelofBLDCCanbeestablishedeasily．Toguaranteethevalidityandspeedinessinsimulation，thebackEMFisgeneratedusingpiecewiselinearcurves．Inthedoubleloopofcontrol
5、system，aPIcontrollerisadoptedinthespeedloopandahysteresiscurrentcontrollerisadoptedinthecurrentloop．BLDCMisamulti．variableandnon-linearsystem．FuzzycontrolhasbeenusedinthefieldoftheBLDCMcontr01．However,thedesignandtuningofthefuzzycontrollerarenotsatisfi
6、ed．Anauto-tuningmethodforfuzzylogiccontrollerbasedonParticleSwarmOptimization(PSO)andGeneticAlgodthm(GA)ispresented，andthecontrollerisappliedintotheBLDCMcontr01．PS0andGAareusedtooptimizeanddesigntheparametersoffuzzycontroller．Andthespeedcontrolperforma
7、nceofspeedcontrolPIcontroller,fuzzycontroller,basedonGAandPSOcontrollerwerecomparedandanalyzed．Simulationresultsprovetheflexibilityofthecontrolsysteminrealtime．Excellentflexibilityandadaptabilityaswellashi曲precisionandgoodrobustnessareobtainedbytheprop
8、osedstrategy．FinallyacontrolsystemforsensorlessBLDCMbasedonTMS320F2812DSPiSpresented．Thesystemusesthebackelectromotiveforce(EMF)methodtorealizerotorpositioningbymeasuringtheⅡAbstractterminalvoltage．Andthesoftwareandhardwaredesignsolutio
