Computer-Aided Power Systems Analysis, Second Edition

by Kusic; George

• ISBN13: 9781420061062
• ISBN10: 1420061062
• eBook ISBN(s): 9781351834964
• Edition: 2nd
• Format: Hardcover
• Copyright: 2008-11-21
• Publisher: CRC Press
• More Book Details

Summary

Computer applications yield more insight into system behavior than is possible by using hand calculations on system elements. Computer-Aided Power Systems Analysis: Second Edition is a state-of-the-art presentation of basic principles and software for power systems in steady-state operation.

Author Biography

Dr. George Kusic, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A.

Table of Contents

Contents	p. vii
Preface	p. xi
Central Operation and Control of Power Systems	p. 1
General	p. 1
Control Center of a Power System	p. 2
Digital Computer Configuration	p. 5
Automatic Generation Control for a Power System	p. 7
Area Control Error	p. 9
CPS1, 1 Minute Average	p. 12
CPS2, 10 Minute Average	p. 12
Disturbance Conditions	p. 14
Operation without Central Computers or AGC	p. 14
Parallel Operation of Generators	p. 19
Network Power Flows	p. 24
Oversimplified Power Flow (dc Power Flow)	p. 25
Area Lumped Dynamic Model	p. 30
Problems	p. 34
References	p. 38
Elements of Transmission Networks	p. 39
Phasor Notation	p. 40
Symmetrical Component Transformation	p. 44
Floating Voltage Base Per-Unit Systems	p. 52
Overhead Transmission Line Representation	p. 56
Inductance of Long Parallel Conductors	p. 59
Balanced Three-Phase Lines	p. 65
Unbalanced Lines	p. 74
Capacitance of Transmission Lines	p. 76
General Method to Determine Aerial Transmission Line Parameters	p. 87
Transformer Representation	p. 97
Wye-Delta and Phase-Shift Transformers	p. 100
Multiple-Winding Transformers	p. 105
Synchronous Machine Representation	p. 108
Steady-State Synchronous Machine Equivalent	p. 114
Short-Circuit Characteristics	p. 120
Transient Time-Frame Synchronous Machine Equivalent	p. 120
Subtransient Time-Frame Synchronous Machine Equivalent	p. 122
Problems	p. 131
References	p. 139
Bus Reference Frame	p. 141
Linear Network Injections and Loads	p. 142
Bus Impedance Matrix for Elements without Mutual Coupling	p. 151
Adding a Tree Branch to Bus p	p. 153
Adding a Tree Branch to the Reference	p. 155
Adding a Cotree Link between Buses p and q	p. 156
Adding a Cotree Link from Bus p to Reference	p. 158
The Bus Admittance Matrix	p. 160
Bus Impedance Matrix for Elements with Mutual Coupling	p. 165
Inversion of the Y[subscript BUS] Matrix for Large Systems	p. 169
Tinney's Optimally Ordered Triangular Factorization [3]	p. 169
Tinney's Schemes for Near-Optimal Ordering	p. 176
Several Iterative Methods for Linear Matrices	p. 180
Gaussian Iteration	p. 181
Gauss-Seidel Iteration	p. 182
Problems	p. 185
References	p. 191
Network Fault and Contingency Calculations	p. 193
Fault Calculations Using Z[subscript BUS]	p. 193
Approximations Common to Short-Circuit Studies	p. 204
Fault Calculations Using the Y[subscript BUS] Table of Factors	p. 209
Contingency Analysis for Power Systems	p. 212
Contingency Analysis for Power Systems	p. 213
Contingencies Using Z[subscript BUS] in a Superposition Method	p. 213
Z[subscript BUS] Line Contingency Method	p. 214
Using the Y[subscript BUS] Table of Factors for Contingencies	p. 215
Double Contingencies Using Y[subscript BUS] Table of Factors (Balanced Case)	p. 219
Problems	p. 223
References	p. 229
Power Flow on Transmission Networks	p. 231
Slack Bus	p. 233
Z[subscript BUS] Formulation for Load-Flow Equations	p. 234
Gauss or Gauss-Seidel Iteration Using Y[subscript BUS]	p. 240
Newton-Raphson Iterative Scheme Using Y[subscript BUS]	p. 243
Approximations to the Jacobian in the Newton-Raphson Method	p. 257
Adjustment of Network Operating Conditions	p. 262
Operational Power Flow Programs	p. 275
Problems	p. 278
References	p. 284
Generator Base Power Setting	p. 285
Economic Dispatch of Generation without Transmission Line Losses	p. 286
Economic Dispatch of Generation with Line Losses	p. 290
On-Line Execution of the Economic Dispatch	p. 295
Day-Ahead Economic Dispatch with a Variable Number of Units On-Line	p. 299
Power Transmission Line Losses for Economic Dispatch	p. 307
Utilizing the Load-Flow Jacobian for Economic Dispatch	p. 314
Economic Exchange of Power between Areas	p. 320
Economy A Program	p. 322
Problems	p. 326
References	p. 333
State Estimation from Real-Time Measurements	p. 335
The Line Power Flow State Estimator	p. 336
State Estimation and Noisy Measurements	p. 344
Monitoring the Power System	p. 354
Determination of Variance [Sigma superscript 2] to Normalize Measurements	p. 357
Problems	p. 364
References	p. 367
Conductor Resistance and Rating	p. 369
Index	p. 377
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