基于單元IGBT驅(qū)動(dòng)故障狀態(tài)下的高壓變頻器旁路運(yùn)行技術(shù)研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文基于單元IGBT驅(qū)動(dòng)故障狀態(tài)下的高壓變頻器旁路運(yùn)行技術(shù)研究姓名：甘祥彬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電氣工程指導(dǎo)教師：郭世明；崔楊201210AbstractAsisknowntoall，alotof6kVlOkVmotorswareusedinourcountryauxiliaryinverterininternationalwascalledmediumvoltageconverterButbecauseweuse

2、dtosaythesemotorsarehighvoltagemotors，SOweputthemediumvoltageinvertercalledthehighvoltageinverter，thispaperalsousethehabitofdomesticappellationDomestichighvoltageinvertermainlyusedcascadetopologystructure；itismadeofanumb

3、erofthesamepowerunitofaccordingtocertainrulesInorderteducethesystemstopduetoallkindsoffaultshappenedinthepowerunit，thepowerunitbypassoperationtechnologyhasbeenwidelyusedManycompaniesalsohavetheirpatenttechnologyinthisres

4、pect，themostoutstandingis：thepowerunitofmainloopIGBTbypassandselfrecoverytechnology(patentnumber：200620035656)Accordingtomycollectionofinformation，thistechnologyonlycanbeaimedatoverheming，overvoltagefault；becauseofthelim

5、itsofthehardwareandsoftware，inthesituationoftheunitIGBTdrivefaultappearing，thesystemcan’tenterthebypassoperationstateTothis，incaseofIGBTdrivefaultsituation，inordertoachievethepurposeofpowerunitalsoCanenterthebypassopermi

6、onstate，theresearchsubjectofthispaperwastoputforwardInthispaperthepresentdevelopmentsituation，thebasicworkingprincipleandthebypassoperationmodeofthehighvoltageinverterarebrieflyintroducedIntotheunitdriverfaultdetectionpr

7、inciple，analysisofcauses，webelievethatinsomedrivefaultstate，thesystemcanenterthebypassoperationstateFortherealizationofthisfunction，weputforwardthedesignofhardwareandsoftwaresolutions，including：thehardwareimprovementofun

8、itdriverboard；thesoftwareandhardwareimprovementsofunitcontrollerboard；thesoftwareimprovementofsystemcontrolboardForthesafeandeffectiveverificationofthesolutions，wedesignedasetofexperimentequipmentTheexperimentequipmentis

9、composedofacontrolpartandadrivingpartThen，accordingtothefunctionofexperimentequipment，weputforwardtheexperimentschemebasedonthepowerunitcontrolleranddriverboard，basedonthepowerunit，basedonthehighvoltageinverterexperiment