Electric systems, dynamics, and stability with artificial intelligence applications

This work seeks to provide a solid foundation to the principles and practices of dynamics and stability assessment of large-scale power systems, focusing on the use of interconnected systems - and aiming to meet the requirements of today's competitive and deregulated environments. It contains easy-to-follow examples of fundamental concepts and algorithmic procedures.

Author Notes

Mohamed E. El-Hawary is a Professor of Electrical and Computer Engineering and Associate Dean of Engineering at Dalhousie University, Halifax, Nova Scotia, Canada.

H. Lee Willis

Series Introduction	p. v
Preface	p. vii
1 Introduction	p. 1
1.1 Historical Background	p. 1
1.2 Structure at a Generic Electric Power System	p. 3
1.3 Power System Security Assessment	p. 7
2 Static Electric Network Models	p. 10
Introduction	p. 10
2.1 Complex Power Concepts	p. 11
2.2 Three-Phase Systems	p. 14
2.3 Synchronous Machine Modeling	p. 21
2.4 Reactive Capability Limits	p. 31
2.5 Static Load Models	p. 32
Conclusions	p. 35
3 Dynamic Electric Network Models	p. 36
Introduction	p. 36
3.1 Excitation System Model	p. 36
3.2 Prime Mover and Governing System Models	p. 40
3.3 Modeling of Loads	p. 43
Conclusions	p. 44
4 Philosophy of Security Assessment	p. 45
Introduction	p. 45
4.1 The Swing Equation	p. 46
4.2 Some Alternative Forms	p. 47
4.3 Transient and Subtransient Reactances	p. 50
4.4 Synchronous Machine Model in Stability Analysis	p. 55
4.5 Subtransient Equations	p. 59
4.6 Machine Models	p. 59
4.7 Groups of Machines and the Infinite Bus	p. 63
4.8 Stability Assessment	p. 63
4.9 Concepts in Transient Stability	p. 68
4.10 A Method for Stability Assessment	p. 71
4.11 Mathematical Models and Solution Methods in Transient Stability Assessment for General Networks	p. 82
4.12 Integration Techniques	p. 89
4.13 The Transient Stability Algorithm	p. 98
Conclusions	p. 108
5 Assessing Angle Stability via Transient Energy Function	p. 109
Introduction	p. 109
5.1 Stability Concepts	p. 110
5.2 System Model Description	p. 117
5.3 Stability of a Single-Machine System	p. 118
5.4 Stability Assessment for n-Generator System by the TEF Method	p. 121
5.5 Application to a Practical Power System	p. 126
5.6 Boundary of the Region of Stability	p. 127
Conclusion	p. 131
6 Voltage Stability Assessment	p. 132
Introduction	p. 132
6.1 Working Definition of Voltage Collapse Study Terms	p. 134
6.2 Typical Scenario of Voltage Collapse	p. 135
6.3 Time-Frame Voltage Stability	p. 136
6.4 Modeling for Voltage Stability Studies	p. 136
6.5 Voltage Collapse Prediction Methods	p. 138
6.6 Classification of Voltage Stability Problems	p. 138
6.7 Voltage Stability Assessment Techniques	p. 140
6.8 Analysis Techniques for Steady-State Voltage Stability Studies	p. 145
6.9 Parameterization	p. 151
6.10 The Technique of Modal Analysis	p. 156
6.11 Analysis Techniques for Dynamic Voltage Stability Studies	p. 157
Conclusion	p. 169
Modeal Analysis: Worked Example	p. 170
7 Technology of Intelligent Systems	p. 175
Introduction	p. 175
7.1 Fuzzy Logic and Decision Trees	p. 177
7.2 Artificial Neural Networks	p. 177
7.3 Robust Artificial Neural Network	p. 184
7.4 Expert Systems	p. 191
7.5 Fuzzy Sets and Systems	p. 206
7.6 Expert Reasoning and Approximate Reasoning	p. 214
Conclusion	p. 220
8 Application of Artificial Intelligence to Angle Stability Studies	p. 221
Introduction	p. 221
8.1 ANN Application in Transient Stability Assessment	p. 222
8.2 A Knowledge-Based System for Direct Stability Analysis	p. 238
Conclusions	p. 257
9 Application of Artificial Intelligence to Voltage Stability Assessment and Enhancement to Electrical Power Systems	p. 259
Introduction	p. 259
9.1 ANN-Based Voltage Stability Assessment	p. 260
9.2 ANN-Based Voltage Stability Enhancement	p. 265
9.3 A Knowledge-Based Support System for Voltage Collapse Detection and Prevention	p. 272
9.4 Implementation for KBVCDP	p. 278
9.5 Utility Environment Application	p. 287
Conclusion	p. 287
10 Epilogue and Conclusions	p. 289
Glossary	p. 298
Appendix Chapter Problems	p. 311
Bibliography	p. 332
Index	p. 351

Available:*

On Order

Summary

Summary

Author Notes

Table of Contents