Power System Dynamics with Computer-Based Modeling and Analysis

A unique combination of theoretical knowledge and practical analysis experience

Derived from Yoshihide Hase s Handbook of Power Systems Engineering, 2nd Edition, this book provides readers with everything they need to know about power system dynamics. Presented in three parts, it covers power system theories, computation theories, and how prevailed engineering platforms can be utilized for various engineering works. It features many illustrations based on ETAP to help explain the knowledge within as much as possible.

Recompiling all the chapters from the previous book, Power System Dynamics with Computer Based Modeling and Analysis offers nineteen new and improved content with updated information and all new topics, including two new chapters on circuit analysis which help engineers with non-electrical engineering backgrounds. Topics covered include: Essentials of Electromagnetism; Complex Number Notation (Symbolic Method) and Laplace-transform; Fault Analysis Based on Symmetrical Components; Synchronous Generators; Induction-motor; Transformer; Breaker; Arrester; Overhead-line; Power cable; Steady-State/Transient/Dynamic Stability; Control governor; AVR; Directional Distance Relay and R-X Diagram; Lightning and Switching Surge Phenomena; Insulation Coordination; Harmonics; Power Electronics Applications (Devices, PE-circuit and Control) and more.

• Combines computer modeling of power systems, including analysis techniques, from an engineering consultant s perspective

• Uses practical analytical software to help teach how to obtain the relevant data, formulate what-if cases, and convert data analysis into meaningful information

• Includes mathematical details of power system analysis and power system dynamics

Power System Dynamics with Computer-Based Modeling and Analysis will appeal to all power system engineers as well as engineering and electrical engineering students.

Autorentext

Yoshihide Hase is a power systems engineering consultant in Japan. Tanuj Khandelwal is CTO and Senior Principal Electrical Engineer at ETAP - Operation Technology, Inc. in the USA. Kazuyuki Kameda provides engineering and consulting services for Electrical and Control Systems at Eltechs Engineering & Consulting Co., Ltd, in Japan.

Inhalt
About the Authors xxix

Preface xxxi

Acknowledgments xxxiii

Part A Power Systems Theories and Practices 1

1 Essentials of Electromagnetism 3

1.1 Overview 3

1.2 Voltage, Current, Electric Power, and Resistance 3

1.3 Electromagnetic Induction (Faraday's Law) 4

1.4 Self Inductance and Mutual Inductance 6

1.5 Mutual Capacitance 7

2 Complex Number Notation (Symbolic Method) and the Laplace Transform 11

2.1 Euler's Formula 11

2.2 Complex Number Notation of Electricity Based on Euler's Formula 12

2.3 LR Circuit Transient Calculation Using Complex Number Notation and the Laplace Transform 14

2.4 LCR Circuit Transient Calculation 16

2.5 Resistive, Inductive, and Capacitive Load, and Phasor Expressions 21

3 Transmission Line Matrices and Symmetrical Components 25

3.1 Overhead Transmission Lines with Inductive LR Constants 25

3.2 Overhead Transmission Lines with Capacitive C Constants 30

3.3 Symmetrical Coordinate Method (Symmetrical Components) 32

3.4 Conversion of a Three-Phase Circuit into a Symmetrical Coordinated Circuit 39

3.5 Transmission Lines by Symmetrical Components 39

3.6 Generator by Symmetrical Components (Simplified Description) 47

3.7 Description of a Three-Phase Load Circuit by Symmetrical Components 49

4 Physics of Transmission Lines and Line Constants 51

4.1 Inductance 51

4.2 Capacitance and Leakage Current 59

4.3 Actual Configuration of Overhead Transmission Lines 66

4.4 Special Properties of Working Inductance and Working Capacitance 68

4.5 MKS Rational Unit System 71

5 The Per-Unit Method 77

5.1 Fundamental Concepts of the PU Method 77

5.2 PU Method for a Single-Phase Circuit 77

5.3 PU Method for Three-Phase Circuits 79

5.4 Base Quantity Modification of Unitized Impedance 80

5.5 Unitized Symmetrical Circuit: Numerical Example 81

6 Transformer Modeling 91

6.1 Single-Phase Three-Winding Transformer 91

6.2 -Connected Three-Phase, Three-Winding Transformer 95

6.3 Three-Phase Transformers with Various Winding Connections 101

6.4 Autotransformers 105

6.5 On-Load Tap-Changing Transformer (LTC Transformer) 107

6.6 Phase-Shifting Transformer 109

6.7 Woodbridge Transformers and Scott Transformers 113

6.8 Neutral Grounding Transformer 116

6.9 Transformer Magnetic Characteristics and Inrush Current Phenomena 118

7 Fault Analysis Based on Symmetrical Components 127

7.1 Fundamental Concepts of Fault Analysis Based on the Symmetrical Coordinate Method 127

7.2 Line-to-Ground Fault (Phase-a to Ground Fault: 1**G) 127

7.3 Fault Analysis at Various Fault Modes 132

7.4 Conductor Opening 137

7.5 Visual Vector Diagrams of Voltages and Currents under Fault Conditions 139

7.6 Three-Phase-Order Misconnections 151

8 Fault Analysis with the 0-Method 155

8.1 **0-Method (Clarke-Components) 155

8.2 Fault Analysis with **0-Components 166

8.3 Advantages of the **0-Method 171

8.4 Fault-Transient Analysis with Symmetrical Components and the **0-Method 171

9 Power Cables 175

9.1 Structural Features of Power Cables 175

9.2 Circuit Constants of Power Cables 183

9.3 Metallic Sheaths and Outer Coverings 190

10 Synchronous Generators, Part 1: Circuit Theory 195

10.1 Generator Model in a Phase abc-Domain 195

10.2 dq0 Method (dq0 Components) 203

10.3 Transformation of Generator Equations from the abc-Domain to the dq0-Domain 206 10.4 Physical Meanings of Generator Equations in the ...