svpwm逆變器的設計與實現(xiàn)

1、畢業(yè)設計(論文論文)`院系控制科學與工程學院專業(yè)班級自動化專業(yè)學生姓名指導教師二○○二○○九年六月年六月題目:SVPWM逆變器的設計與實現(xiàn)ⅡDesignApplicationonSVPWMInverterAbstractThespacevectpulsewidthmodulation（SVPWM）whichdevelopsfastintherecentyearsowingtoitsadvantageoflittleharmonichig

2、hutilizationrateofDCvoltageconveniencetobedigitalwidelyusesininvertertechnology.Studyingonthethreephasevoltagesourcewithstarconnectedinductiveloadresistanceittakessomeresearchoninvertertechnologyanalysisthebasicprinciple

3、scontrolalgithmsofSVPWMinthispaper.Thereferencevoltagespacevectwasdirectlysynthesizedbasedontheswitchingstatevectsinαβvectscomplexspacethedurationtimeofeachswitchingstatevectswascalculated.Thecomputationalefficiencyofthi

4、salgithmismoderatetherealtimeperfmanceiselegant.Thusthecurrentdisttionstqueripplesarelowerintheoutputoftheinverter.Itprovesthealgithmswithstsofmathematicalmethodbuildingtheoverallstructureofthethreephaseinvertercontrolth

5、atbasedonSVPWMcontrolstrategy.ThecontrolalgithmsaresimulateddynamicallybyusingMATLABSIMULINKdynamicsimulationtool.ThemathematicalmodelofthreephaseasynchronousmotinrotatingcodinatesystemisestablishedSVPWMtechnologyisdiscu

6、ssed.ThesimulationofvoltagesourceSVPWMFrequencyvaryingspeedadjustingsystembasedonMATLABismade.Theresultaregivenanalyzed.ThetestresultsshowedthatthiscontrolsystemwithSVPWMhassuchmeritsassimplerealizationimprovedrunningper

7、fmanceanenhancedDCvoltageutilizationratio.ThesimulationresultsachievethedesiredeffectwhichpromisetheSVPWMcontroltechnologywouldhaveawiderbetterapplicationhizoninthedayswhentheseverersituationofenergyshtageinthewldtoday.K