Multi-terminal High Voltage Converter

  • ID: 4535288
  • Book
  • 300 Pages
  • John Wiley and Sons Ltd
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An all–in–one guide to high–voltage, multi–terminal converters, this book brings together the state of the art and cutting–edge techniques in the various stages of designing and constructing a high–voltage converter. The book includes 9 chapters, and can be classified into three aspects. First, all existing high–voltage converters are introduced, including the conventional two–level converter, and the multi–level converters, such as the modular multi–level converter (MMC).  Second, different kinds of multi–terminal high–voltage converters are presented in detail, including the topology, operation principle, control scheme and simulation verification.  Third, some common issues of the proposed multi–terminal high–voltage converters are discussed, and different industrial applications of the proposed multi–terminal high–voltage converters are provided.

  • Systematically proposes, for the first time, the design methodology for high–voltage converters in use of MTDC grids; also applicable to constructing novel power electronics converters, and driving the development of HVDC, which is one of the most important technology areas
  • Presents the latest research on multi–terminal high–voltage converters and its application in MTDC transmission systems and other industrially important applications
  • Offers an overview of existing technology and future trends of the high–voltage converter, with extensive discussion and analysis of different types of high–voltage converters and relevant control techniques (including DC–AC, AC–DC, DC–DC, and AC–AC converters)
  • Provides readers with sufficient context to delve into the more specialized topics covered in the book

Featuring a series of novel multi–terminal high–voltage converters proposed and patented by the authors, Multi–terminal High Voltage Converters is written for researchers, engineers, and advanced students specializing in power electronics, power system engineering and electrical engineering.

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Contents

About the Authors IX

Preface X

Acknowledgments XII

Chapter 1 Overview of High–Voltage Converters 1

1.1 Introduction 1

1.2 Classification of High–voltage High–Power Converters 5

1.2.1 Two–level Converters 5

1.2.2 Multilevel Converters 7

1.3 Multilevel Converters 8

1.3.1 Neutral–point–clamped Converter 9

1.3.2 Flying Capacitor Converter 11

1.3.3 Cascaded H–bridge Converter 14

1.3.4 Modular Multilevel Converter (MMC) 16

1.3.5 Active Neutral–point–clamped Converter 22

1.3.6 Hybrid multilevel converters 24

1.4 Modulation Methods of Multilevel Converter 27

1.4.1 Space Vector Modulation (SVM) 28

1.4.2 Multicarrier Pulse Width Modulation (PWM) 29

1.4.3 Selective Harmonic Elimination Modulation 31

1.4.4 Nearest Level Control Method 32

1.4.5 Hybrid Modulation 33

1.5 Architecture of Multi–terminal High–voltage Converter 34

1.6 Arrangement of this Book 37

References 37

Chapter 2 Multiple Bridge Module High–Voltage Converters 41

2.1 Introduction 41

2.2 Configuration of Bridge Module 41

2.2.1 Half–bridge Module 42

2.2.2 Full–bridge Module 44

2.3 Single–phase Half–bridge Module High–voltage Converter 46

2.3.1 Basic Structure and Operation Principle 46

2.3.2 Control Scheme 49

2.3.3 Output Voltage Verification 52

2.3.4 Simplified Single–phase Half–Bridge Module 55

2.4 Three–phase Half–bridge Module High–voltage Converter 55

2.4.1 Basic Structure and Operation Principle 55

2.4.2 Control Scheme 56

2.4.3 Output Voltage Verification 59

2.5 Three–phase Four–leg Half–bridge Module High–voltage Converter 61

2.6 Full–bridge Module High–voltage Converter 62

2.7 Advantages of Multiple Bridge Module Converter 63

2.8 Summary 65

References 65

Chapter 3 Single–Input Multiple–Output High Voltage DC–AC Converters 67

3.1 Introduction 67

3.2 Single–Input Dual–Output Half–Bridge Single–Phase DC–AC Converter 67

3.2.1 Basic Structure and Operation Principle 67

3.2.2 Control Scheme 70

3.2.3 Output Voltage Verification 73

3.3 Single–Input Dual–Output Full–Bridge Single–Phase DC–AC Converter 74

3.3.1 Basic Structure and Operation Principle 74

3.3.2 Control Scheme 76

3.3.3 Output Voltage Verification 77

3.4 Single–Input Dual–Output Three–Phase DC–AC converter 79

3.4.1 Basic Structure and Operation Principle 79

3.4.2 Control Scheme 80

3.4.3 Output Voltage Verification 81

3.5 Single–Input Multiple–Output Half–Bridge Single–Phase DC–AC Converter 83

3.5.1 Basic Structure and Operation Principle 83

3.5.2 Control Scheme 85

3.5.3 Output Voltage Verification 86

3.6 Single–Input Multiple–Output Full–Bridge Single–Phase DC–AC Converter 89

3.6.1 Basic Structure and Operation Principle 89

3.6.2 Control Scheme 91

3.6.3 Output Voltage Verification 92

3.7 Single–Input Multiple–Output Three–Phase DC–AC converter 94

3.7.1 Basic Structure and Operation Principle 94

3.7.2 Control Scheme 95

3.7.3 Output Voltage Verification 96

3.8 Summary 98

References 99

Chapter 4 Multiple–Input Single–Output High Voltage AC–DC Converters 100

4.1 Introduction 100

4.2 Single–phase Three–arm Dual–input Single–output AC–DC Converter 100

4.2.1 Basic Structure and Operation Principle 100

4.2.2 Control Scheme 102

4.2.3 Performance Verification 104

4.3 Single–phase Six–arm Dual–input Single–output AC–DC Converter 108

4.3.1 Basic Structure and Operation Principle 108

4.3.2 Control Scheme 109

4.3.3 Performance Verification 111

4.4 Three–phase Nine–arm Dual–input Single–output AC–DC Converter 117

4.4.1 Basic Structure and Operation Principle 117

4.4.2 Control Scheme 118

4.4.3 Performance Verification 119

4.5 Single–phase M–arm Multiple–input Single–output AC–DC Converter 121

4.5.1 Basic Structure and Operation Principle 121

4.5.2 Control Scheme 123

4.5.3 Performance verification 125

4.6 Single–phase 2M–arm Multiple–input Single–output AC–DC Converter 129

4.6.1 Basic Structure and Operation Principle 129

4.6.2 Control Scheme 131

4.6.3 Performance Verification 133

4.7 Three–phase 3M–arm Multiple–input Single–output AC–DC Converter 137

4.7.1 Basic Structure and Operation Principle 137

4.7.2 Control Scheme 139

4.7.3 Performance verification 139

4.8 Summary 142

References 142

Chapter 5 Multiple–Input Multiple–Output High Voltage AC–AC Converters 143

5.1 Introduction 143

5.2 Single–Phase Single–Input Single–Output AC–AC Converter 144

5.2.1 Basic Structure and Operation Principle 144

5.2.2 Control Scheme 145

5.2.3 Output Voltage Verification 148

5.3 Three–Phase Single–Input Single–Output AC–AC Converter 151

5.3.1 Basic Structure and Operation Principle 151

5.3.2 Control Scheme 152

5.3.3 Output Voltage Verification 153

5.4 Single–Phase Multiple–terminal AC–AC Converter 156

5.4.1 Basic Structure and Operation Principle 156

5.4.2 Control Scheme 156

5.4.3 Output Voltage Verification 158

5.5 Three–Phase Multiple–Input Multiple–Output AC–AC Converter 164

5.5.1 Basic Structure and Operation Principle 164

5.5.2 Control Scheme 164

5.5.3 Output Voltage Verification 166

5.6 Summary 169

References 170

Chapter 6 Multiple–terminal High Voltage DC–DC Converters 171

6.1 Introduction 171

6.2 Single–input Dual–output DC–DC Converter 171

6.2.1 Basic Structure and Operation Principle 171

6.2.2 Control scheme 173

6.2.3 Simulation Verification 175

6.3 Single–input Multiple–output DC–DC Converter 176

6.3.1 Basic Structure and Operation Principle 176

6.3.2 Control scheme 179

6.3.3 Simulation Verification 180

6.4 Multiple–input Multiple–output DC–DC Converter 182

6.5 Summary 185

References 185

Chapter 7 Multiple–terminal High Voltage Hybrid Converters 187

7.1 Introduction 187

7.2 Six–arm Hybrid Converter with Single–phase AC Input 187

7.2.1 Basic Structure and Operation Principle 187

7.2.2 Control Scheme 189

7.2.3 Simulation Verification 191

7.3 Nine–arm Hybrid Converter with Three–phase AC Input 193

7.3.1 Basic Structure and Operation Principle 193

7.3.2 Control Scheme 194

7.3.3 Simulation Verification 195

7.4 Multiple–arm Hybrid Converter 198

7.4.1 Basic Structure and Operation Principle 198

7.4.2 Control Scheme 201

7.5 Summary 203

References 203

Chapter 8 Short–Circuit Protection for High–Voltage Converters 204

8.1 Introduction 204

8.2 Modular dc circuit breaker 206

8.3 Sub–modules with dc–fault handling capability 209

8.3.1 Full–bridge sub–module 210

8.3.2 Clamp–double sub–module 211

8.3.3 Unipolar–voltage sub–module 213

8.3.4 Cross–connected sub–module 214

8.3.5 Series–connected double sub–module 216

8.4 Configuration of the hybrid multi–terminal high voltage converter 217

8.5 Summary 221

References 222

Chapter 9 Common Techniques and Applications of Multi–Terminal High–Voltage Converters 223

9.1 Introduction 223

9.2 Capacitor Voltage Control Scheme for Multi–terminal High–voltage Converters 224

9.2.1 Single–input Dual–output DC–AC Converter 224

9.2.2 Single–phase Multiple–input Single–output AC–DC Converter 232

9.3 Applications of Multi–terminal High–voltage Converter 244

9.3.1 Multiple wind turbines and DC bus 244

9.3.2 Multiple wind turbines and AC bus 244

9.3.3 Multiple AC motors and DC bus 247

9.3.4 Multiple AC motors and AC bus 247

9.4 Summary 250

References 250

Index 252

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Bo Zhang
Dongyuan Qiu
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