9781118922057

Maintaining a stable level of power quality in the distribution network is a growing challenge due to increased use of power electronics converters in domestic, commercial and industrial sectors. Power quality deterioration is manifested in increased losses; poor utilization of distribution systems; mal-operation of sensitive equipment and disturbances to nearby consumers, protective devices, and communication systems. However, as the energy-saving benefits will result in increased AC power processed through power electronics converters, there is a compelling need for improved understanding of mitigation techniques for power quality problems.

This timely book comprehensively identifies, classifies, analyses and quantifies all associated power quality problems, including the direct integration of renewable energy sources in the distribution system, and systematically delivers mitigation techniques to overcome these problems.

Key features:

• Emphasis on in-depth learning of the latest topics in power quality extensively illustrated with waveforms and phasor diagrams.

• Essential theory supported by solved numerical examples, review questions, and unsolved numerical problems to reinforce understanding.

• Companion website contains solutions to unsolved numerical problems, providing hands-on experience.

Senior undergraduate and graduate electrical engineering students and instructors will find this an invaluable resource for education in the field of power quality. It will also support continuing professional development for practicing engineers in distribution and transmission system operators.

Professor Bhim Singh has worked at the IIT Delhi Department of Electrical Engineering since 1997. He has 30 years’ experience in research, consulting and teaching, has organized more than 40 short term courses and workshops, and has delivered more than 100 invited specialized lectures. He has chaired many international and national conferences, including the IEEE International Conferences on Power Electronics, Drives and Energy Systems in 2006. Professor Singh holds one US and one Indian Patent and has filed nine Indian patents. He is a Fellow of many engineering institutions including the Indian National Academy of Engineering and the Indian Academy of Sciences.

Professor Ambrish Chandra became a Professor in Electrical Engineering Department at ETS in 1999. His main research interest areas are: power quality, active filters, static reactive power compensation, FACTS and control & integration of renewable energy resources. Professor Chandra is a Fellow of many engineering institutions including IEEE, IET (UK), IE (India) as well as a Life Member of the Indian Society for Technical Education (ISTE).

Professor Kamal Al-Haddad has been a Professor within ETS’ Electrical Engineering Department since 1990. His research interest areas include: high efficient static power converters, harmonics & reactive power control using hybrid filters, switch mode & resonant converters, the development of prototypes for various industrial applications in electric traction, and power supply for drives & telecommunication. Professor Al-Haddad is an IEEE Fellow, a Canadian Academy of Engineering Fellow and life member of the Circle of Excellence of the University of Quebec. Presently he is IEEE Industrial Electronics society President Elect.

Preface xi

About the Companion Website xiv

1 Power Quality: An Introduction 1

1.1 Introduction 1

1.2 State of the Art on Power Quality 2

1.3 Classification of Power Quality Problems 3

1.4 Causes of Power Quality Problems 4

1.5 Effects of Power Quality Problems on Users 4

1.6 Classification of Mitigation Techniques for Power Quality Problems 6

1.7 Literature and Resource Material on Power Quality 6

1.8 Summary 7

1.9 Review Questions 8

References 8

2 Power Quality Standards and Monitoring 11

2.1 Introduction 11

2.2 State of the Art on Power Quality Standards and Monitoring 11

2.3 Power Quality Terminologies 12

2.4 Power Quality Definitions 15

2.5 Power Quality Standards 16

2.6 Power Quality Monitoring 18

2.7 Numerical Examples 20

2.8 Summary 39

2.9 Review Questions 39

2.10 Numerical Problems 40

2.11 Computer Simulation-Based Problems 43

References 46

3 Passive Shunt and Series Compensation 48

3.1 Introduction 48

3.2 State of the Art on Passive Shunt and Series Compensators 48

3.3 Classification of Passive Shunt and Series Compensators 49

3.4 Principle of Operation of Passive Shunt and Series Compensators 51

3.5 Analysis and Design of Passive Shunt Compensators 51

3.6 Modeling, Simulation, and Performance of Passive Shunt and Series Compensators 62

3.7 Numerical Examples 63

3.8 Summary 85

3.9 Review Questions 85

3.10 Numerical Problems 87

3.11 Computer Simulation-Based Problems 89

References 93

4 Active Shunt Compensation 96

4.1 Introduction 96

4.2 State of the Art on DSTATCOMs 96

4.3 Classification of DSTATCOMs 97

4.4 Principle of Operation and Control of DSTATCOMs 108

4.5 Analysis and Design of DSTATCOMs 133

4.6 Modeling, Simulation, and Performance of DSTATCOMs 136

4.7 Numerical Examples 141

4.8 Summary 158

4.9 Review Questions 158

4.10 Numerical Problems 159

4.11 Computer Simulation-Based Problems 162

References 167

5 Active Series Compensation 170

5.1 Introduction 170

5.2 State of the Art on Active Series Compensators 171

5.3 Classification of Active Series Compensators 171

5.4 Principle of Operation and Control of Active Series Compensators 178

5.5 Analysis and Design of Active Series Compensators 183

5.6 Modeling, Simulation, and Performance of Active Series Compensators 185

5.7 Numerical Examples 190

5.8 Summary 216

5.9 Review Questions 217

5.10 Numerical Problems 218

5.11 Computer Simulation-Based Problems 220

References 226

6 Unified Power Quality Compensators 229

6.1 Introduction 229

6.2 State of the Art on Unified Power Quality Compensators 230

6.3 Classification of Unified Power Quality Compensators 231

6.4 Principle of Operation and Control of Unified Power Quality Compensators 237

6.5 Analysis and Design of Unified Power Quality Compensators 246

6.6 Modeling, Simulation, and Performance of UPQCs 249

6.7 Numerical Examples 252

6.8 Summary 292

6.9 Review Questions 292

6.10 Numerical Problems 293

6.11 Computer Simulation-Based Problems 297

References 303

7 Loads That Cause Power Quality Problems 306

7.1 Introduction 306

7.2 State of the Art on Nonlinear Loads 307

7.3 Classification of Nonlinear Loads 308

7.4 Power Quality Problems Caused by Nonlinear Loads 313

7.5 Analysis of Nonlinear Loads 314

7.6 Modeling, Simulation, and Performance of Nonlinear Loads 314

7.7 Numerical Examples 314

7.8 Summary 327

7.9 Review Questions 328

7.10 Numerical Problems 329

7.11 Computer Simulation-Based Problems 330

References 334

8 Passive Power Filters 337

8.1 Introduction 337

8.2 State of the Art on Passive Power Filters 338

8.3 Classification of Passive Filters 338

8.4 Principle of Operation of Passive Power Filters 344

8.5 Analysis and Design of Passive Power Filters 349

8.6 Modeling, Simulation, and Performance of Passive Power Filters 350

8.7 Limitations of Passive Filters 353

8.8 Parallel Resonance of Passive Filters with the Supply System and Its Mitigation 355

8.9 Numerical Examples 360

8.10 Summary 387

8.11 Review Questions 387

8.12 Numerical Problems 388

8.13 Computer Simulation-Based Problems 391

References 395

9 Shunt Active Power Filters 397

9.1 Introduction 397

9.2 State of the Art on Shunt Active Power Filters 398

9.3 Classification of Shunt Active Power Filters 398

9.4 Principle of Operation and Control of Shunt Active Power Filters 405

9.5 Analysis and Design of Shunt Active Power Filters 413

9.6 Modeling, Simulation, and Performance of Shunt Active Power Filters 417

9.7 Numerical Examples 421

9.8 Summary 438

9.9 Review Questions 438

9.10 Numerical Problems 439

9.11 Computer Simulation-Based Problems 442

References 447

10 Series Active Power Filters 452

10.1 Introduction 452

10.2 State of the Art on Series Active Power Filters 453

10.3 Classification of Series Active Power Filters 453

10.4 Principle of Operation and Control of Series Active Power Filters 456

10.5 Analysis and Design of Series Active Power Filters 462

10.6 Modeling, Simulation, and Performance of Series Active Power Filters 465

10.7 Numerical Examples 467

10.8 Summary 492

10.9 Review Questions 492

10.10 Numerical Problems 493

10.11 Computer Simulation-Based Problems 496

References 501

11 Hybrid Power Filters 504

11.1 Introduction 504

11.2 State of the Art on Hybrid Power Filters 505

11.3 Classification of Hybrid Power Filters 506

11.4 Principle of Operation and Control of Hybrid Power Filters 519

11.5 Analysis and Design of Hybrid Power Filters 527

11.6 Modeling, Simulation, and Performance of Hybrid Power Filters 528

11.7 Numerical Examples 534

11.8 Summary 559

11.9 Review Questions 559

11.10 Numerical Problems 561

11.11 Computer Simulation-Based Problems 563

References 569

Index 579

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Power Quality Problems and Mitigation Techniques

Power Quality Problems and Mitigation Techniques

1118922050

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