SimulationStudyoftheThree-PhaseFlyingCapacitorInverters:Modulation Strategies and Applications

Sanjeevani Gondane, Pratik Ghutke

Abstract


Thispaperisasimulation studyofmodulationstrategiesinthree-phaseflyingcapacitorinvertersinMATLABsimulink.Theflyingcapacitormultilevelconverterisarecentlydevelopedconvertertopologyassuringaflexiblecontrolandmodulardesign.However,theflyingcapacitormultilevelconverterrequiresabalancedDCvoltagedistribution. This canberealizedbyusingaspecialcontrolleadingtonaturalbalancingorbymeasuringthevoltagesandselectingtheappropriateswitchingstate..Underinvestigationthosestrategiesthatsolvethecapacitorvoltagebalancingproblem,Carrierbasedphase-shiftPWMmethodwithAPOD,IPD,PODarepresentedandcorrespondingvoltageharmonicdistortionvaluesareanalyzed3levelfivelevelFlyingcapacitormultilevelinverters.AgeneralmathematicalmodelforanN-levelinverterisusedforcircuitoperationanalysisandAreviewpowersystemapplicationsofflyingcapacitormultilevelinvertersarepresented.


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