Multi-terminal Direct-Current Grids: Modeling, Analysis, and Control

291 Pages·2014·4.217 MB·English

by  Nilanjan Chaudhuri, Balarko Chaudhuri, Rajat Majumder, Amirnaser Yazdani

MULTI-TERMINAL
DIRECT-CURRENT GRIDS

MULTI-TERMINAL
DIRECT-CURRENT GRIDS
Modeling, Analysis, and Control
Nilanjan Ray Chaudhuri
Balarko Chaudhuri
Rajat Majumder
Amirnaser Yazdani
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Chaudhuri,NilanjanRay,1981-
Multi-terminaldirect-currentgrids:modeling,analysis,andcontrol/NilanjanRayChaudhuri,BalarkoChaudhuri,
RajatMajumder,AmirnaserYazdani.
pagescm
Includesbibliographicalreferencesandindex.
ISBN978-1-118-72910-6(hardback)
1.Electricpowerdistribution–Directcurrent.I.Chaudhuri,Balarko,1977-II.Majumder,Rajat,1977-III.Yazdani,
Amirnaser,1972-IV.Title.
TK3111.C442014
621.31′2–dc23
2014017303
PrintedintheUnitedStatesofAmerica
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To our parents and
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CONTENTS
Foreword xiii
Preface xv
Acronyms xix
Symbols xxi
1 Fundamentals 1
1.1 Introduction 1
1.2 RationaleBehindMTDCGrids 5
1.3 NetworkArchitecturesofMTDCGrids 6
1.3.1 SeriesArchitecture 6
1.3.2 ParallelArchitecture 7
1.4 EnablingTechnologiesandComponentsofMTDCGrids 9
1.4.1 LCCTechnology 9
1.4.1.1 ControlModesinLCC-basedMTDCGrid 10
1.4.1.2 ExamplesofExistingLCCMTDCSystems 10
1.4.2 VSCTechnology 12
vii
viii CONTENTS
1.5 ControlModesinMTDCGrid 14
1.6 ChallengesforMTDCGrids 15
1.7 ConfigurationsofMTDCConverterStations 16
1.8 ResearchInitiativesonMTDCGrids 19
1.9 FocusandScopeoftheMonograph 21
2 TheVoltage-SourcedConverter(VSC) 23
2.1 Introduction 23
2.2 IdealVoltage-SourcedConverter 24
2.3 PracticalVoltage-SourcedConverter 28
2.3.1 Two-LevelVoltage-SourcedConverter 28
2.3.2 Three-LevelVoltage-SourcedConverter 31
2.3.3 Multi-LevelVoltage-SourcedConverter 35
2.4 Control 38
2.4.1 ControlofRealandReactivePowers 38
2.4.2 DesignandImplementationofControl 39
2.4.2.1 SpacePhasors 39
2.4.2.2 Space-PhasorRepresentationoftheACSide 42
2.4.2.3 CurrentControlintheStationaryFrame 43
2.4.2.4 CurrentControlinaRotatingFrame 44
2.4.2.5 Phase-LockedLoop 52
2.4.3 ControloftheDC-SideVoltage 56
2.4.4 ControloftheACGridVoltage 58
2.4.5 Multi-unitControlofDCGridVoltageand/orACGrid
Voltage 59
2.4.6 ControlofIslands 61
2.5 Simulation 65
2.6 SymbolsoftheVSC 75
3 Modeling,Analysis,andSimulationofAC–MTDCGrids 77
3.1 Introduction 77
3.2 MTDCGridModel 78
3.2.1 ModelingAssumptions 78
3.2.2 ConverterModel 81
3.2.3 ConverterControllerModel 83
3.2.3.1 OuterControlLoops 83
3.2.3.2 InnerCurrentControlLoop 87