无刷直流电动机控制系统研究

《无刷直流电动机控制系统研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、北京机械工业学院硕士学位论文无刷直流电动机控制系统研究姓名：王芳申请学位级别：硕士专业：检测技术与自动化装置指导教师：厉虹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