Electric Power Principles
Sources, Conversion, Distribution and Use
(Sprache: Englisch)
This innovative approach to the fundamentals of electric power provides the most rigorous, comprehensive and modern treatment available. To impart a thorough grounding in electric power systems, it begins with an informative discussion on per-unit...
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Klappentext zu „Electric Power Principles “
This innovative approach to the fundamentals of electric power provides the most rigorous, comprehensive and modern treatment available. To impart a thorough grounding in electric power systems, it begins with an informative discussion on per-unit normalizations, symmetrical components and iterative load flow calculations.Covering important topics within the power system, such as protection and DC transmission, this book looks at both traditional power plants and those used for extracting sustainable energy from wind and sunlight.
With classroom-tested material, this book also presents: the principles of electromechanical energy conversion and magnetic circuits;
synchronous machines - the most important generators of electric power;
power electronics;
induction and direct current electric motors.
Homework problems with varying levels of difficulty are included at the end of each chapter, and an online solutions manual for tutors is available. A useful Appendix contains a review of elementary network theory.
For senior undergraduate and postgraduate students studying advanced electric power systems as well as engineers re-training in this area, this textbook will be an indispensable resource. It will also benefit engineers in electronic power systems, power electronic systems, electric motors and generators, robotics and mechatronics.
www.wiley.com/go/kirtley_electric
Inhaltsverzeichnis zu „Electric Power Principles “
Preface xi1 Electric Power Systems 1
1.1 Electric Utility Systems 2
1.2 Energy and Power 3
1.2.1 Basics and Units 3
1.3 Sources of Electric Power 3
1.3.1 Heat Engines 4
1.3.2 Power Plants 5
1.3.3 Nuclear Power Plants 8
1.3.4 Hydroelectric Power 9
1.3.5 Wind Turbines 10
1.3.6 Solar Power Generation 12
1.4 Electric Power Plants and Generation 15
1.5 Problems 15
2 AC Voltage, Current and Power 17
2.1 Sources and Power 17
2.1.1 Voltage and Current Sources 17
2.1.2 Power 18
2.1.3 Sinusoidal Steady State 18
2.1.4 Phasor Notation 19
2.1.5 Real and Reactive Power 19
2.2 Resistors, Inductors and Capacitors 21
2.2.1 Reactive Power and Voltage 22
2.2.2 Reactive Power Voltage Support 23
2.3 Problems 26
3 Transmission Lines 31
3.1 Modeling: Telegrapher's Equations 32
3.1.1 Traveling Waves 33
3.1.2 Characteristic Impedance 33
3.1.3 Power 35
3.1.4 Line Terminations and Reflections 35
3.1.5 Sinusoidal Steady State 40
3.2 Problems 42
4 Polyphase Systems 45
4.0.1 Two-Phase Systems 45
4.1 Three-Phase Systems 47
4.2 Line-Line Voltages 49
4.2.1 Example: Wye and Delta Connected Loads 50
4.2.2 Example: Use of Wye-Delta for Unbalanced Loads 52
4.3 Problems 54
5 Electrical and Magnetic Circuits 57
5.1 Electric Circuits 57
5.1.1 Kirchoff 's Current Law (KCL) 57
5.1.2 Kirchoff 's Voltage Law (KVL) 58
5.1.3 Constitutive Relationship: Ohm's Law 58
5.2 Magnetic Circuit Analogies 60
5.2.1 Analogy to KCL 60
5.2.2 Analogy to KVL: Magnetomotive Force 61
5.2.3 Analogy to Ohm's Law: Reluctance 61
5.2.4 Simple Case 62
5.2.5 Flux Confinement 63
5.2.6 Example: C-Core 63
5.2.7 Example: Core with Different Gaps 64
5.3 Problems 66
6 Transformers 71
6.1 Single-phase Transformers 71
6.1.1 Ideal Transformer 72
6.1.2 Deviations from Ideal Transformer 73
6.2 Three-Phase Transformers 75
6.2.1 Example 77
6.3 Problems 80
7 Polyphase
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Lines and Single-Phase Equivalents 85
7.1 Polyphase Transmission and Distribution Lines 85
7.1.1 Example 87
7.2 Introduction To Per-Unit Systems 88
7.2.1 Normalization Of Voltage and Current 88
7.2.2 Three-Phase Systems 90
7.2.3 Networks with Transformers 90
7.2.4 Transforming from one base to another 91
7.2.5 Example: Fault Study 92
7.3 Appendix: Inductances of Transmission Lines 94
7.3.1 Single Wire 94
7.3.2 Mutual Inductance 96
7.3.3 Bundles of Conductors 96
7.3.4 Transposed Lines 97
7.4 Problems 98
8 Electromagnetic Forces and Loss Mechanisms 103
8.1 Energy Conversion Process 103
8.1.1 Principle of Virtual Work 104
8.1.2 Coenergy 108
8.2 Continuum Energy Flow 110
8.2.1 Material Motion 111
8.2.2 Additional Issues in Energy Methods 112
8.2.3 Electric Machine Description 116
8.2.4 Field Description of Electromagnetic Force: The Maxwell Stress Tensor 118
8.2.5 Tying the MST and Poynting Approaches together 120
8.3 Surface Impedance of Uniform Conductors 124
8.3.1 Linear Case 124
8.3.2 Iron 128
8.3.3 Magnetization 128
8.3.4 Saturation and Hysteresis 129
8.3.5 Conduction, Eddy Currents and Laminations 131
8.3.6 Eddy Currents in Saturating Iron 133
8.4 Semi-Empirical Method of Handling Iron Loss 136
8.5 Problems 139
9 Synchronous Machines 145
9.1 Round Rotor Machines: Basics 146
9.1.1 Operation with a Balanced Current Source 147
9.1.2 Operation with a Voltage Source 147
9.2 Reconciliation of Models 150
9.2.1 Torque Angles 150
9.3 Per-Unit Systems 151
9.4 Normal Operation 152
9.4.1 Capability Diagram 153
9.4.2 Vee Curve 153
9.5 Salient Pole Machines: Two-Reaction Theory 154
9.6 Synchronous Machine Dynamics 157
9.7 Synchronous Machine Dynamic Model 159
9.7.1 Electromagnetic Model 159
9.7.2 Park's Equations 160
9.7.3 Power and Torque 164
9.7.4 Per-Unit Normalization 164
9.7.5 Equivalent Circuits 167
9.7.6 Transient Reac
7.1 Polyphase Transmission and Distribution Lines 85
7.1.1 Example 87
7.2 Introduction To Per-Unit Systems 88
7.2.1 Normalization Of Voltage and Current 88
7.2.2 Three-Phase Systems 90
7.2.3 Networks with Transformers 90
7.2.4 Transforming from one base to another 91
7.2.5 Example: Fault Study 92
7.3 Appendix: Inductances of Transmission Lines 94
7.3.1 Single Wire 94
7.3.2 Mutual Inductance 96
7.3.3 Bundles of Conductors 96
7.3.4 Transposed Lines 97
7.4 Problems 98
8 Electromagnetic Forces and Loss Mechanisms 103
8.1 Energy Conversion Process 103
8.1.1 Principle of Virtual Work 104
8.1.2 Coenergy 108
8.2 Continuum Energy Flow 110
8.2.1 Material Motion 111
8.2.2 Additional Issues in Energy Methods 112
8.2.3 Electric Machine Description 116
8.2.4 Field Description of Electromagnetic Force: The Maxwell Stress Tensor 118
8.2.5 Tying the MST and Poynting Approaches together 120
8.3 Surface Impedance of Uniform Conductors 124
8.3.1 Linear Case 124
8.3.2 Iron 128
8.3.3 Magnetization 128
8.3.4 Saturation and Hysteresis 129
8.3.5 Conduction, Eddy Currents and Laminations 131
8.3.6 Eddy Currents in Saturating Iron 133
8.4 Semi-Empirical Method of Handling Iron Loss 136
8.5 Problems 139
9 Synchronous Machines 145
9.1 Round Rotor Machines: Basics 146
9.1.1 Operation with a Balanced Current Source 147
9.1.2 Operation with a Voltage Source 147
9.2 Reconciliation of Models 150
9.2.1 Torque Angles 150
9.3 Per-Unit Systems 151
9.4 Normal Operation 152
9.4.1 Capability Diagram 153
9.4.2 Vee Curve 153
9.5 Salient Pole Machines: Two-Reaction Theory 154
9.6 Synchronous Machine Dynamics 157
9.7 Synchronous Machine Dynamic Model 159
9.7.1 Electromagnetic Model 159
9.7.2 Park's Equations 160
9.7.3 Power and Torque 164
9.7.4 Per-Unit Normalization 164
9.7.5 Equivalent Circuits 167
9.7.6 Transient Reac
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Autoren-Porträt von James L. Kirtley
Professor James Kirtley is currently teaching a course on electric power systems to both undergaraduate and graduate students at MIT (Massachusetts Institue of Technology). He has been a fellow of IEEE since 1990, was awarded the IEEE Third Millenium Medal in 2000 and the Nikola Tesla Award in 2002. Since 2007 Professor Kirtley has been associate editor of IEEE Power Engineering Society's Transactions on Energy Conversion. He lectures outside the university, writes exensively for journals and holds 23 patents. Amongst other areas, his research interests include electric ships, superconducting generator, intelligent monitoring of equipment and systems, and advanced motor/generator machines for kinetic energy storage systems.
Bibliographische Angaben
- Autor: James L. Kirtley
- 2010, 1. Auflage, 400 Seiten, Maße: 17,6 x 25 cm, Gebunden, Englisch
- Verlag: Wiley & Sons
- ISBN-10: 0470686367
- ISBN-13: 9780470686362
- Erscheinungsdatum: 29.09.2010
Sprache:
Englisch
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