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Kurzbeschreibung This book is the fully revised and updated second edition of Power System Dynamics and Stability published in 1997. The modified Power System Dynamics reflects a shift from solely describing power system dynamics to how to deal with them. The book continues the successful approach of the first edition, first explaining underlying physical principles before proceeding to more complex models and algorithms. An essential resource for graduates of electrical engineering, it is also a clear and comprehensive reference text for undergraduate students, practicing engineers and researchers in electricity companies or power system technologies development.
Aus dem Inhalt About the Authors
Preface
Acknowledgements
List of Symbols
Part I: Introduction to Power Systems.
1 Introduction.
1.1 Stability and control of a dynamic system
1.2 Classification of power system dynamics
1.3 Two pairs of important quantities: reactive power/voltage and real power/frequency
1.4 Stability of power system
1.5 Security of power system
1.6 Brief historical overview
2. Power system components.
2.1 Structure of the electrical power system
2.2 Generating units
2.3 Substations
2.4 Transmission and distribution network
2.5 Protection
2.6 Wide Area Measurement Systems
3. The power system in the steady-state.
3.1. Transmission lines
3.2. Transformers
3.3. Synchronous generators
3.4. Power system loads
3.5. Network equations
3.6. Power flows in transmission networks
Part II: Introduction to Power System Dynamics.
4. Electromagnetic phenomena.
4.1. Fundamentals
4.2. Three-phase short-circuit on a synchronous generator
4.3. Phase-to-phase short-circuit
4.4. Synchronization
4.5. Short circuit in a network and its clearing
5. Electromechanical dynamics - small disturbances.
5.1. Swing equation
5.2. Damping power
5.3. Equilibrium points
5.4. Steady-state stability of unregulated system
5.5. Steady-state stability of the regulated system
6. Electromechanical dynamics - large disturbances.
6.1. Transient stability
6.2. Swings in multi-machine systems
6.3. Direct method for stability assessment
6.4. Synchronization
6.5. Asynchronous operation and resynchronization
6.6 Out-of-step protection systems
6.7. Torsional oscillations in the drive shaft
7. Wind power.
7.1 Wind turbines
7.2 Induction machine equivalent circuit
7.3 Induction generator coupled to the grid
7.4 Induction generators with slightly increased speed range via external rotor resistance
7.5 Induction generators with significantly increased speed range: DFIGs.
7.6 Fully rated converter systems: wide speed control
7.7 Peak power tracking of variable speed wind turbines
7.8 Connections of wind farms
7.9 Fault behaviour of induction generators
7.10 Influence of wind generators on power system stability
8. Voltage stability.
8.1. Network feasibility
8.2. Stability criteria
8.3. Critical load demand and voltage collapse
8.4. Static analysis
8.5. Dynamic analysis
8.6. Prevention of voltage collapse
8.7. Self-excitation of a generator operating on a capacitive load
9. Frequency stability and control.
9.1. Automatic generation control
9.2. Stage I - Rotor swings in the generators
9.3. Stage II - Frequency drop
9.4. Stage III - Primary control
9.5. STAGE IV - Secondary control
9.6. FACTS devices in tie-lines
10. Stability enhancement.
10.1. Power system stabilizers
10.2. Fast valving
10.3. Braking resistors
10.4. Generator tripping
10.5. Shunt FACTS devices
10.6. Series compensators
10.7. Unified power flow controller
PART III: Advanced Topics in Power System Dynamics.
11. Advanced power system modelling.
11.2. Excitation Systems
11.3. Turbines and turbine governors
11.4. FACTS devices
12. Steady-state stability of multi-machine system.
12.1. Mathematical background
12.2. Steady-state stability of unregulated system
12.3. Steady-state stability of the regulated system
