Table of Contents
About the Authors xv Preface and Acknowledgments xvii
List of Abbreviations xix
Part One Introduction 1
1. Introduction 3
1.1 Overview of High-Power Drives 3
1.2 Technical Requirements and Challenges 5
1.3 Converter Configurations 8
1.4 Industrial MV Drives 11
1.5 Summary 14
References 15
Appendix 16
2. High-Power Semiconductor Devices 17
2.1 Introduction 17
2.2 High-Power Switching Devices 18
2.3 Operation of Series Connected Devices 29
2.4 Summary 32
References 33
Part Two Multipulse Diode and SCR Rectifiers 35
3. Multipulse Diode Rectifiers 37
3.1 Introduction 37
3.2 Six-Pulse Diode Rectifier 38
3.3 Series-Type Multipulse Diode Rectifiers 47
3.4 Separate-Type Multipulse Diode Rectifiers 57
3.5 Summary 62
References 63
4. Multipulse SCR Rectifiers 65
4.1 Introduction 65
4.2 Six-Pulse SCR Rectifier 65
4.3 12-Pulse SCR Rectifier 74
4.4 18- and 24-Pulse SCR Rectifiers 79
4.5 Summary 80
References 81
5. Phase-Shifting Transformers 83
5.1 Introduction 83
5.2 Y/Z Phase-Shifting Transformers 83
5.3 Δ/Z Transformers 86
5.4 Harmonic Current Cancellation 89
5.5 Summary 92
Part Three Multilevel Voltage Source Converters 93
6. Two-Level Voltage Source Inverter 95
6.1 Introduction 95
6.2 Sinusoidal PWM 95
6.3 Space Vector Modulation 101
6.4 Summary 116
References 117
7. Cascaded H-Bridge Multilevel Inverters 119
7.1 Introduction 119
7.2 H-Bridge Inverter 120
7.3 Multilevel Inverter Topologies 124
7.4 Carrier-Based PWM Schemes 128
7.5 Staircase Modulation 138
7.6 Summary 140
References 140
8. Diode-Clamped Multilevel Inverters 143
8.1 Introduction 143
8.2 Three-Level Inverter 143
8.3 Space Vector Modulation 148
8.4 Neutral-Point Voltage Control 165
8.5 Carrier-Based PWM Scheme and Neutral-Point Voltage Control 167
8.6 Other Space Vector Modulation Algorithms 169
8.7 High-Level Diode-Clamped Inverters 170
8.8 NPC/H-Bridge Inverter 174
8.9 Summary 180
References 180
Appendix 182
9. Other Multilevel Voltage Source Inverters 185
9.1 Introduction 185
9.2 Multilevel Flying-Capacitor Inverter 185
9.3 Active Neutral-Point Clamped Inverter 188
9.4 Neutral-Point Piloted Inverter 197
9.5 Nested Neutral-Point Clamped Inverter 200
9.6 Modular Multilevel Converter 209
9.7 Summary 222
References 222
Part Four PWM Current Source Converters 225
10. PWM Current Source Inverters 227
10.1 Introduction 227
10.2 PWM Current Source Inverter 228
10.3 Space Vector Modulation 237
10.4 Parallel Current Source Inverters 247
10.5 Load-Commutated Inverter (LCI) 253
10.6 Summary 254
References 255
Appendix 256
11. PWM Current Source Rectifiers 257
11.1 Introduction 257
11.2 Single-Bridge Current Source Rectifier 257
11.3 Dual-Bridge Current Source Rectifier 265
11.4 Power Factor Control 269
11.5 Active Damping Control 275
11.6 Summary 283
References 284
Appendix 285
Part Five High-Power AC Drives 287
12. Voltage Source Inverter Fed Drives 289
12.1 Introduction 289
12.2 Two-Level VSI-Based MV Drives 289
12.3 Neutral Point Clamped (NPC) Inverter Fed Drives 293
12.4 Multilevel Cascaded H-Bridge (CHB) Inverter Fed Drives 298
12.5 NPC/H-Bridge Inverter Fed Drives 302
12.6 ANPC Inverter Fed Drive 303
12.7 MMC Inverter Fed Drive 305
12.8 10 KV-Class Drives with Multilevel Converters 306
12.9 Summary 307
References 307
13. Current Source Inverter Fed Drives 309
13.1 Introduction 309
13.2 CSI Drives with PWM Rectifiers 309
13.3 Transformerless CSI Drive for Standard AC Motors 315
13.4 CSI Drive with Multipulse SCR Rectifier 316
13.5 LCI Drives for Synchronous Motors 318
13.6 Summary 320
References 320
14. Control of Induction Motor Drives 321
14.1 Introduction 321
14.2 Reference Frame Transformation 322
14.3 Induction Motor Dynamic Models 325
14.4 Principle of Field Oriented Control (FOC) 332
14.5 Direct Field Oriented Control 335
14.6 Indirect Field Oriented Control 339
14.7 FOC for CSI Fed Drives 341
14.8 Direct Torque Control 344
14.9 Summary 351
References 351
15. Control of Synchronous Motor Drives 353
15.1 Introduction 353
15.2 Modeling of Synchronous Motor 353
15.3 VSC FED SM Drive with Zero d-Axis Current (ZDC) Control 360
15.4 VSC FED SM Drive with MTPA Control 367
15.5 VSC FED SM Drive with DTC Scheme 372
15.6 Control of CSC FED SM Drives 381
15.7 Summary 390
References 390
Appendix 391
Part Six Special Topics on MV Drives 393
16. Matrix Converter Fed MV Drives 395
16.1 Introduction 395
16.2 Classic Matrix Converter (MC) 396
16.3 Three-Module Matrix Converter 401
16.4 Multi-Module Cascaded Matrix Converter (CMC) 408
16.5 Multi-Module CMC Fed MV Drive 413
16.6 Summary 415
References 415
17. Transformerless MV Drives 417
17.1 Introduction 417
17.2 Common-Mode Voltage Issues and Conventional Solution 418
17.3 CM Voltage Reduction in Multilevel VSC 422
17.4 Transformerless Drives with Multilevel VSC 434
17.5 Transformerless CSI Fed Drives 440
17.6 Summary 444
References 445
Index 447
