Emerging Techniques in Power System Analysis

3642042813......Page 1
Title Page......Page 3
Copyright Page......Page 4
Preface......Page 5
Table of Contents......Page 7
1.1 Principles of Deregulation......Page 12
1.2 Overview of Deregulation Worldwide......Page 13
1.2.1 Regulated vs Deregulated......Page 14
1.2.2 Typical Electricity Markets......Page 16
1.3 Uncertainties in a Power System......Page 17
1.3.1 Load Modeling Issues......Page 18
1.4 Situational Awareness......Page 21
1.5 Control Performance......Page 22
1.5.1 Local Protection and Control......Page 23
1.5.2 Centralized Protection and Control......Page 25
1.5.3 Possible Coordination Problem in the Existing Protection and Control System......Page 26
1) Load Shedding or Generator Tripping......Page 27
2) Zone 3 Protection......Page 29
References......Page 30
2.1 Power System Cascading Failure and Analysis Techniques......Page 33
2.2 Data Mining and Its Application in Power System Analysis......Page 37
2.3 Grid Computing......Page 39
2.4 Probabilistic vs Deterministic Approaches......Page 41
2.5 Phasor Measurement Units......Page 44
2.6 Topological Methods......Page 45
2.7 Power System Vulnerability Assessment......Page 46
2.8 Summary......Page 49
3.1 Introduction......Page 55
3.2 Fundamentals of Data Mining......Page 56
3.3 Correlation, Classification and Regression......Page 57
3.4 Available Data Mining Tools......Page 59
3.5.1 Introduction to Electricity Price Forecasting......Page 61
3.5.2 The Price Spikes in an Electricity Market......Page 62
3.5.3 Framework for Price Spike Forecasting......Page 64
3.5.4 Problem Formulation of Interval Price Forecasting......Page 73
3.5.5 The Interval Forecasting Approach......Page 75
3.6 Data Mining based Power System Security Assessment......Page 80
3.6.1 Background......Page 82
3.6.2 Network Pattern Mining and Instability Prediction......Page 84
3.7 Case Studies......Page 89
3.7.2 Case Study on Interval Price Forecasting......Page 93
3.7.3 Case Study on Security Assessment......Page 99
References......Page 102
4.1 Introduction......Page 105
4.2 Fundamentals of Grid Computing......Page 106
4.2.1 Architecture......Page 107
4.2.2 Features and Functionalities......Page 108
4.2.3 Grid Computing vs Parallel and Distributed Computing......Page 110
4.3.1 Available Packages......Page 111
4.3.2 Projects......Page 112
4.3.3 Applications in Power Systems......Page 114
4.4 Grid Computing based Security Assessment......Page 115
4.5 Grid Computing based Reliability Assessment......Page 117
4.6 Grid Computing based Power Market Analysis......Page 118
4.7.1 Probabilistic Load Flow......Page 119
4.7.3 Performance Comparison......Page 121
4.8 Summary......Page 123
5.1 Introduction......Page 126
5.2.1 Power System Stability Analysis......Page 127
5.2.2 Power System Reliability Analysis......Page 128
5.2.3 Power System Planning......Page 129
5.3.1 Power System Stability Analysis......Page 130
5.3.3 Power System Planning......Page 132
5.4.1 Probabilistic Transient Stability Assessment Methodology......Page 134
5.4.2 Probabilistic Small Signal Stability Assessment Methodology......Page 136
5.5.1 Power System Reliability Assessment......Page 137
5.5.2 Probabilistic Reliability Assessment Methodology......Page 140
5.6.1 Candidates Pool Construction......Page 144
5.6.4 Final Adjustment......Page 145
5.7.1 A Probabilistic Small Signal Stability Assessment Example......Page 146
5.7.2 Probabilistic Load Flow......Page 149
5.8 Summary......Page 151
References......Page 152
6.1 Introduction......Page 155
6.2.1 An Overview......Page 159
6.2.2 Weighted Least Squares Method......Page 160
6.2.3 Enhanced State Estimation......Page 162
6.3 Stability Analysis......Page 165
6.3.1 Voltage and Transient Stability......Page 166
6.3.2 Small Signal Stability—Oscillations......Page 168
6.4 Event Identification and Fault Location......Page 170
6.5 Enhance Situation Awareness......Page 172
6.6 Model Validation......Page 175
6.7 Case Study......Page 177
6.7.2 Formulation of Characteristic Ellipsoids......Page 178
6.7.3 Geometry Properties of Characteristic Ellipsoids......Page 180
6.7.4 Interpretation Rules for Characteristic Ellipsoids......Page 181
6.7.5 Simulation Results......Page 183
References......Page 187
7.1 Identified Emerging Techniques......Page 193
7.2 Trends in Emerging Techniques......Page 194
7.3.1 Economic Impact of Emission Trading Schemes and Carbon Production Reduction Schemes......Page 195
7.3.2 Power Generation based on Renewable Resources such as Wind......Page 197
7.3.3 Smart Grid......Page 198
References......Page 199
A.1 Weibull Distribution......Page 202
A1.1 An Illustrative Example......Page 203
A.2 Eigenvalues and Eigenvectors......Page 204
A.3 Eigenvalues and Stability......Page 205
References......Page 207
Index......Page 208