Power electronic systems : theory and design / Jai P. Agrawal.

CONTENIDO
PART I: INTRODUCTION 1
1. Birds-Eye View of Power Electronics Systems 3
Introduction 3
A Simple Voltage Converter 5
Systems View of Power Electronic Converters 6
Elements of the Converter Systems: Modeling and Assumptions 11
Converter Topology 24
Converter Operation and Desired Characteristics 28
Converter Performance Measures 28
Protection 33
Packaging 34
Problems 35
PART II: POWER ELECTRONIC COMPONENTS 41
2. Understanding Components 43
Introduction 43
Basics of Magnetism 43
Magnetic Materials 45
Magnetic Circuits 46
Inductor 47
Nonlinearities in Magnetic Components 50
Losses in Magnetic Components 53
Windings 56
Types of Inductors 56
Transformers 61
Motors 65
Electrostatics and Dielectric Materials 69
Capacitors 69
Semiconductor Switches 71
Snubbering: Protection of Switching Devices 73
Zero-Current Switching 77
Zero-Voltage Switching 77
PSPICE Simulation 77
References 79
Problems 79
3. Power Diodes 85
Introduction 85
p-n Junctions 86
Power Diodes 92
Parallel and Series Connection of Diodes 98
Schottky Barrier Diode 100
New Trends in Diodes 102
Device Specification 102
PSPICE Simulation 104
Summary 104
References 106
Problems 107
4. Transistors: Level Triggered Switching Devices 109
Introduction 109
Basic MOS Structure 110
Power MOSFETs 114
Insulated Gate Bipolar Transistor (IGBT) 126
Comparison of MOSFET and IGBT 134
Device Specifications 134
Summary 138
Refereces 138
Problems 138
5. Thyristors: Pulse Triggered Devices 141
Introduction 141
Basic Structure 142
Static Characteristics 143
Cathode-Shorted Structure of Thyristors 146
Effect of Temperature 147
Switching Characteristics 147
Series Operation of Thyristors 151
Parallel Operation of Thyristors 153
Thyristor Triggering Circuits 153
Forced Commutation of Thyristors 156
Thyristor Snubber Circuits 159
Gate Turn-Off Thyristors (GTO) 159
Triacs 163
The MOS Controlled Thyristor (MCT) 164
Device Specification 167
Summary 169
References 170
Problems 170
PART III: POWER ELECTRONIC CONVERTER CIRCUITS 173
6. DC to Controlled DC 175
Introduction 175
Uncontrolled and Controlled Conversion 175
Buck Converters 178
Boost Converters 185
Buck-Boost Converters 192
CUK Converters 196
Two-Quadrant Converters 198
Full-Bridge Converters 198
Isolated DC-DC Converters 204
Multi-Output DC-DC Converter 211
Design Exercise: Switching Power Supply 212
PSPICE Simulation 213
Summary 214
References 214
Problems 215
7. DC to Controlled AC 219
Introduction 219
Controlled Inversion 219
Full-Bridge Inverter (VSI) with Square-Wave Switching 224
Pulse-Width Modulation (PWM) Control of VSI 230
Current-Mode Control of PWM VSI 234
Current Source PWM Full-Bridge Inverter 234
Pruning of Harmonic Profile 236
Sine-PWM Inverter 242
Control Signal Generation 247
3-Phase Full-Bridge Inverter 248
Rectifier Mode of Operation of Inverters 252
Design Exercise: 2 KW, 1-Phase Inverter for Emergency Applications 252
PSPICE Simulation 253
Summary 255
References 255
Problems 255
8. AC to DC: No Control 259
Introduction 259
AC-DC Converter Topologies 260
1-Phase Half-Wave Rectifier 263
1-Phase Full-Bridge AC-DC Converter 273
Line Quality Issues 286
3-Phase 6-Pulse Full-Wave Rectifier 292
Transient Considerations 299
Design Example 300
Effect of Device Characteristics 300
PSPICE Simulation 300
Summary 302
References 303
Problems 303
9. AC to DC: With Control 307
Introduction 307
Controlled AC-DC Conversion 308
1-Phase AC-DC Converters 312
3-Phase 6-Pulse Full-Bridge Converters 336
Design Exercise: PWM Drive for DC Motor 346
PSPICE Simulation 348
Summary 349
References 351
Problems 351
10. AC to Controlled AC 355
Introduction 355
Modeling and Analysis 356
AC Controller 357
Cycloconverter 373
DC-Link AC-AC Converter 382
PSPICE Simulation 385
Summary 385
References 386
Problems 387
11. Resonant Converters 391
Introduction 391
Resonant Converter Systems 391
Resonant Tank Circuits 392
Resonant Tank in Excitation 396
Series Resonant DC-DC Converter with Voltage Sink (Current Coupled Resonant Converter) 399
Parallel Resonant DC-DC Converter (PRC) (Voltage Coupled Resonant Converter) 414
High-Order Resonant DC-DC Converter 420
Class E Converters 423
Resonant Switch Converters 423
Resonant-Link Inverters 428
Bidirectional Resonant Converters 428
Control of Resonant Converters 429
PSPICE Simulation 432
Summary 433
References 434
Problems 434
PART IV: POWER ELECTRONIC APPLICATION SYSTEMS 437
12. Electric Utility Interface: Power Factor Correction and Static Var Control 439
Introduction 439
Electric Utility Distribution System 439
Passive Filtering 440
Active Current Shaping: Power Factor Correction 441
Interface for Bidirectional Power Flow 447
3-Phase Utility Interface 449
Static VAR Compensators 449
Summary 452
References 453
Problems 453
13. Converter Control 455
Introduction 455
Averaged Model 455
Linearized Model 459
State-Space Averaged Model 461
Feedback Control 465
Summary 468
References 469
Problems 469
14. Applications I: Power Supplies and... 471
Introduction 471
DC Power Supply System 471
Control of Switch-Mode DC Power Supplies 473
Protection of DC Power Supplies 474
Electrical Isolation 476
Equivalent Series Resistance (ESR) 476
Synchronous Rectifiers 477
Cross Regulation in Multiple Outputs 477
Battery Charging Systems 477
Uninterruptible (AC) Power Supply (UPS) 478
Electronic Lamp Ballast 480
Induction Heating 480
Switch-Mode Welding 481
Electromagnetic Interference Considerations 481
Summary 483
References 483
Problems 484
15. Applications II: Motor Drives 487
Introduction 487
DC Motor Drives 487
Induction Motor Drives 492
Synchronous Motor Drives 501
Summary 505
References 505
Problems 505
16. Temperature Control, Protection, and Packaging 507
Introduction 507
Temperature Control in Semiconductor Devices 507
Heat Transfer Basics 508
Heat Transfer Systems 508
Static Thermal Model of Heat Transfer Systems 512
Transient Thermal Impedance 513
Heat Sink 516
Surge Voltage Protection 516
Fault Current Protection 517
Circuit Layout Techniques 519
Summary 520
References 521
Problems 521
APPENDIX A 523
A-1 Review of Basic Principles 523
A-2 Basic Mathematical Methods 524
A-3 Energy and Power 530
A-4 Pspice Simulation 533
APPENDIX B 537(2)
B-1 Electromagnetics 537
APPENDIX C 539(8)
C-1 Semiconductor Basics 539
C-2 Charge Transport in Homogenous-Structure Semiconductor Devices 541
C-3 Heterogeneous-Structure Devices 542
APPENDIX D 547
APPENDIX E 549
APPENDIX F 551
Index 553