ZouJia, WangCong. Research on triple line-voltage cascaded converter for the medium and high voltage rectifier[J]. Journal of Mining Science and Technology, 2019, 4(6): 531-538.
Citation:
ZouJia, WangCong. Research on triple line-voltage cascaded converter for the medium and high voltage rectifier[J]. Journal of Mining Science and Technology, 2019, 4(6): 531-538.
ZouJia, WangCong. Research on triple line-voltage cascaded converter for the medium and high voltage rectifier[J]. Journal of Mining Science and Technology, 2019, 4(6): 531-538.
Citation:
ZouJia, WangCong. Research on triple line-voltage cascaded converter for the medium and high voltage rectifier[J]. Journal of Mining Science and Technology, 2019, 4(6): 531-538.
Inthispaper,anovelthree-phaserectifierbased on triple line-voltage cascaded VIENNA converter(LVC-VC) has been proposed,which could be the high power factor rectifier under high powervoltage.Comparedtoconventionalthree-phasecascadedH-bridgeconverters,intheproposednew multilevelconverters,andfewerswitchesanddccapacitorsarerequiredundersimilaroperatingconditions.Basedonthestudytotheoperationprincipleofthenewconverter,thepowerfactorcorrectionof theproposedconverterisrealizedbyemployingtraditionalone-cyclecontrolstrategy,thecarrierphaseshiftingmodulationisdesignedtoreducetheacvoltageharmonic.Thedcsidecapacitorvoltagesteady statemathematicalmodelisdeduced,thescopeofthedcsidecapacitorvoltageiscalculated,thecontrollersofdc-linkvoltagesofthethreeViennarectifiermodulesaredesigned.Simulationandexperimentalresultsverifiedtheavailabilityofthenewproposedmultilevelconverterandthevalidityofthecorrespondingcontrolstrategyapplied.
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