最新matlab(simulink)+simplorer+maxwell-电机联合仿真-svpwm-EMIl滤波器-差共模信号分离PPT课件.ppt

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1、matlab(simulink)+simplorer+maxwell-电机联合仿真-svpwm-EMIl滤波器-差共模信号分离IntroductionSix-phasemotoriswidelyusedinindustrialproductionanditisincreasinglyresearchedandappliedinelectricalcars,shippropulsion(舰船推进),aerospaceetc.Computersimulationisasimplewaytosolvecomplexproblems.Itprovide

2、sasignificanttooltoexaminethecorrectnessofthecircuitdesign.SoftwareUsedMaxwellestablishmotormodelSimplorerdesigncontrolcircuitMATLAB(simulink)usethesub-librarysimpowersystemstomakeelectricalsimulationtogeneratesvpwmwaveSimulationSimulationstoptimeat100ms(5periods),theminimum

3、step10us.Thecomputerrunsforabout240hourstocompleteit.Resultsasfollows:MotorVoltage(firstphase)FFTanalysis(firstphase)MotorCurrent(firstphase)FFTanalysis(firstphase)MotorTorque(转矩)SvpwmwaveformCoreloss(铁芯损耗)Wireloss(线圈损耗)ConclusionTheresultsarebasicallysatisfactory.Mybossgive

4、smethistaskinlastNovemberandIhavefinisheditinthebeginningofthissemester.NowwhatIamdoingistheEMIfilter.That’swhatIwanttotalkaboutnext.EMIFilterElectricalequipmentsarewidelyusedinourdailylife.Theybringgreatconveniencetoourlifeandalsomakeourelectromagneticenvironmentmoreandmore

5、complex.EMIfilterisamethodtosolvetheproblemofelectromagneticcompatibility(电磁兼容).Inthisproject,myworkistofindacircuittoseparatecommonmodesignalanddifferentialmodesignal(共差模信号).MainIdeaOperatingFrequency:150kHz–30MHzHigh-passfilter(高通滤波器)(tofiltersignalsbelow150kHz)High-freque

6、ncytransformer（高频变压器）(separatecommonmodesignalanddifferentialmodesignal)TestDataTransformernormaloperatingfrequency:300Hz–50kHzHigh-passfiltercutofffrequency:4.78kHzInputSignal:10Vp-pAnalysisHigh-passfilteroutputsatisfiesthedesignrequirements.Thetransformeroutputisinconsiste

7、ntwithexpectations.Normaloperatingfrequencyofthetransformercan’tmeettheneeds.SolutionSearchfortransformermeetrequirements:canstablyworkfrom150kHzto30MHz.Findanotherwaytoseparatecommonmodesignalanddifferentialmodesignalwithoutthetransformer.ThankYou!整饬之美,——排比段技法的运用1. 开头+中心句+事

8、例1+中心句+事例2 +中心句+事例3+结尾排比段落法的基本结构：2.开头+事例1+过渡+事例2+过渡+事例3+过渡+结尾1.中心句或过渡句要求