兆瓦级变频驱动综合分析（中英文翻译）.pdfVIP

太上有立德，其次有立功，其次有立言，虽久不废，此谓不朽。——《左传》

ComprehensiveAnalysisofMulti-MegawattVariable

FrequencyDrives

AbstractMulti-megawattvariablefrequencydriveshavebeenincreasinglyusedin

manyindustriestoconserveelectricenergy,increaseproductivityandimprove

productquality.Thepaperprovidesacomprehensiveanalysisofmulti-megawattAC

drivesdevelopedbytheworldleadingdrivemanufacturers.Avarietyofmultilevel

voltagesourceinverters（VSIs）andPWMcurrentsourceinverters（CSIs）areanalyzed.

Advantagesanddrawbacksofthesedrivesaresummarized.Variousmodulation

schemessuitableformegawattconvertersarediscussed.Importantconceptsare

illustratedwithcomputersimulationsandexperiments.

Keywords:High-powerACdrives，high-powerconverters，multilevelconverters，

pulsewidthmodulation，spacevectormodulation

1Introduction

Withthetechnologyadvancementsinsemiconductordevicessuchas

high-voltageIGBTs（insulatedgatebipolartransistors）andGCTs（gatecontrolled

thyristors）,modernmulti-megawattvariablefrequencydrivesareincreasinglyusedin

petrochemical,mining,steelmetals,transportationandotherindustriestoconserve

electricenergy,increaseproductivityandimproveproductquality.

Thereareanumberofhigh-powerdrivemanufacturersaroundtheworld,

includingABB（Switzerland）,Siemens（Germany）,Toshiba（Japan）,Rockwell

Automation（Canada）,GeneralElectric（US）,ASIRobicon（US）andAlstom（France）.

ThesecompaniesusevariouspowerconvertertechnologiesshowninFig.1