Discover the technology for producing and delivering electricity in this easily accessible introduction to power systems
Electric Power Systems underlie virtually every aspect of modern life. In the face of an unprecedented transition from fossil fuels to clean energy, it has never been more essential for engineers and other professionals from diverse disciplines to understand the electric grid and help chart its future. Since its original publication, Electric Power Systems has served as a uniquely accessible and qualitative introduction to the subject, offering a foundational overview with an emphasis on key concepts and building physical intuition. Now revised and updated to bring even greater rigor and incorporate the latest technologies, it remains an indispensable introduction to this vital subject.
Readers of the revised and expanded second edition of Electric Power Systems will also find:
- End-of-chapter problems to facilitate and reinforce learning
- New discussions of subjects including load frequency control, protection, voltage stability, and many others
- More quantitative treatment of topics such as voltage regulation, power flow analysis, generator and transformer modeling with numerical examples
- Entirely new chapters on generation and storage resources, power electronics, and the analysis of transmission lines
Electric Power Systems is an ideal textbook for graduate and advanced undergraduate students in engineering, as well as for a broad range of professionals, such as computer and data scientists, solar and wind energy manufacturers and installers, energy storage providers, economists, policy makers, legal and regulatory staff, and advocacy organizations.
Table of Contents
List of Figures xvii
Preface xxv
Acknowledgments xxix
About the Companion Website xxxi
1 Physics of Electricity 1
1.1 Basic Quantities 1
1.2 Ohm’s Law 7
1.3 Circuit Fundamentals 10
1.4 Resistive Heating 13
1.5 Electric and Magnetic Fields 17
2 DC Circuit Analysis 29
2.1 Modeling Circuits 29
2.2 Series and Parallel Circuits 30
2.3 Kirchhoff’s Laws 35
2.4 The Superposition Principle 39
2.5 Thévenin and Norton Equivalent Circuits 41
2.6 Magnetic Circuits 48
3 AC Power55
3.1 Alternating Current and Voltage 55
3.2 Power for the Resistive Case 60
3.3 Impedance 63
3.4 Complex Power 77
3.5 Phasors 86
4 Three-Phase Power 101
4.1 Three-Phase Basics 101
4.2 Symmetrical Components 111
4.3 Direct and Quadrature Components 117
5 Power Quality 121
5.1 Voltage 121
5.2 Frequency 125
5.3 Waveform and Harmonics 126
6 Loads135
6.1 Types of Loads 135
6.2 Single- and Multiphase Connections 144
6.3 Voltage Response of Loads 146
6.4 Load in Aggregate 150
7 Transmission and Distribution Systems 159
7.1 System Structure 159
7.2 Qualitative Characteristics of Power Lines 174
7.3 Loading 182
7.4 Voltage Control 185
7.5 Protection 190
8 Transformers 203
8.1 General Properties 203
8.2 Transformer Heating 205
8.3 Delta andWye Transformers 206
8.4 Autotransformers 208
8.5 Transformer Modeling 210
8.6 Voltage Regulation 216
8.7 Per-unit System 218
9 Analyzing Transmission Lines 225
9.1 Transmission Line Inductance 225
9.2 Transmission Line Capacitance 234
9.3 ABCD Parameters 238
10 Machines 257
10.1 The Simple Generator 258
10.2 D.C. Machine 261
10.3 The Synchronous Generator 264
10.4 Operational Control 270
10.5 Operating Limits 283
10.6 The Induction Machine 285
10.7 Modeling Generators 291
11 Matching Generation and Load 299
11.1 Load Frequency Control 299
11.2 Economic Dispatch 312
12 Power Flow 321
12.1 Introduction 321
12.2 The Power Flow Problem 322
12.3 Example with Interpretation of Results 331
12.4 Power Flow Equations and Solution Methods 339
12.5 Applications 360
12.6 LinDistFlow 363
13 Limits 369
13.1 Adequacy 369
13.2 Reliability 370
13.3 Security 374
13.4 Stability 376
13.5 Power Transfer Limits 394
Problems and Questions 403
14 Power Electronics 405
14.1 Power Conversion: Introduction 405
14.2 Legacy Power Conversion Technologies 406
14.3 Solid-State Technology 408
14.4 Inverters 415
14.5 FACTS 423
15 Resources 425
15.1 Generation Resources 425
15.2 Distributed Generation 437
15.3 Storage 443
15.4 Microgrids 449
16 Making the System Work 453
16.1 Time Scales for Operation and Control 454
16.2 Measurement and Data 460
16.3 Human Factors 469
16.4 Strategic Perspectives 479
Appendix A Symbols, Units, Abbreviations, and Acronyms 487
Index 493
