Control and dynamics in power systems and microgrids 1st Edition by Lingling Fan 1351979382 9781351979382

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ISBN 10: 1351979382 

ISBN 13: 9781351979382

Author: Lingling Fan 

In traditional power system dynamics and control books, the focus is on synchronous generators. Within current industry, where renewable energy, power electronics converters, and microgrids arise, the related system-level dynamics and control need coverage. Wind energy system dynamics and microgrid system control are covered. The text also offers insight to using programming examples, state-of-the-art control design tools, and advanced control concepts to explain traditional power system dynamics and control. The reader will gain knowledge of dynamics and control in both synchronous generator-based power system and power electronic converter enabled renewable energy systems, as well as microgrids.

Control and dynamics in power systems and microgrids 1st table of contents: 

1 Introduction
1.1 Why a new textbook?
1.2 Structure of this book
Part I: Control
2 Dynamic Simulation
2.1 Introduction
2.2 Numerical integration methods
2.2.1 Forward–Euler method
2.2.2 Runge–Kutta method
2.2.3 Trapezoidal method
2.3 Dynamic simulation for an RLC circuit
2.3.1 Trapezoidal method-based simulation in Python .
2.3.2 MATLAB® ODE solver-based dynamic simulation
2.4 MATLAB/Simulink-based dynamic simulation
2.4.1 Integrator-based model building
2.4.2 S-function-based model building
2.5 MATLAB commands for linear system simulation
2.5.1 Define the linear models
2.5.2 Time-domain responses
2.5.3 Linear system analysis
2.6 Summary
3 Frequency Control
3.1 Important facts
3.2 Plant model: Swing equations
3.2.1 Newton’s Law for a rotating mass
3.2.2 Swing equation at near nominal speed
3.2.3 Swing equation in per unit
3.2.4 Small-signal swing equation
3.2.5 A stand-alone generator serving a load
3.2.6 Single-machine infinite-bus (SMIB) system
3.3 How to reduce frequency deviation
3.3.1 Primary frequency control and its effect
3.3.2 Power sharing among multiple generators
3.3.3 Reactive power sharing
3.4 How to eliminate frequency deviation
3.4.1 How to track a signal
3.4.2 Secondary frequency control
3.4.3 Bring tie-line power flow schedule back to the original
3.5 Validation of Frequency Control Design
3.5.1 A single generator serving a load
3.5.2 Two generators serving a load
3.5.3 Two areas connected through a tie-line
3.6 More examples of frequency control
3.6.1 Example 1: Step response of reference power ΔPc
3.6.2 Example 2: Power sharing after secondary frequency control
3.6.3 Example 3: What if some areas have no ACE control?
3.6.4 Example 4: Effect of the droop in system stability
3.6.5 Example 5: Why does long distance transmission induce more oscillations?
4 Synchronous Generator Models
4.1 Generator steady-state circuit model
4.1.1 Internal voltage due to the rotor excitation current
4.1.2 Armature reaction of a round rotor generator
4.1.3 Round-rotor generator circuit, phasor diagram, power and torque
4.1.4 Lentz’s Law example
4.2 Space vector concept
4.2.1 Example
4.2.2 Advantages of space vector technique
4.2.3 Relationship of space vector, complex vector, αβ and Park’s transformation
4.3 Synchronous generators with salient rotors
4.3.1 Armature reaction of a salient rotor generator
4.3.2 Salient generator phasor diagram, power and torque
4.4 Generator model based on space vector
4.4.1 Application 1: Voltage Buildup
4.4.2 Application 2: Short-Circuit
4.5 Simplified dynamic model: flux decay model
5 Voltage Control
5.1 Introduction
5.2 Plant model: No dynamics included
5.2.1 Scenario 1: Stator open-circuit
5.2.2 Scenario 2: A SMIB system
5.3 Plant model: Rotor flux dynamics only
5.3.1 Stator open-circuit
5.3.2 SMIB case
5.4 Voltage control design: Part I
5.4.1 Feedback control and the gain limit
5.4.2 How to improve stability: Rate feedback
5.5 Voltage control design: Part II
5.5.1 Block diagram approach
5.5.2 State-space modeling approach
5.5.3 Power system stabilizer
5.5.4 Linear model simulation results
5.6 Summary
6 Frequency and Voltage Control in Microgrids
6.1 Control of a voltage source converter (VSC)
6.1.1 Design of inner current controller
6.1.2 Phase-Locked Loop (PLL)
6.1.3 Validation of current control and PLL
6.1.4 Design of outer PQ or PV control
6.1.5 Design of VF control
6.2 Power sharing methods
6.2.1 P–f and Q–E droops
6.2.2 V–I droop
Part II: Dynamics
7 Large-Signal Stability
7.1 Introduction
7.2 Lyapunov stability criterion
7.2.1 Stability or instability
7.3 Equal-area method
7.3.1 Time-domain simulation results
8 Small-Signal Stability
8.1 SMIB system stability
8.1.1 Computing initial state variables
8.1.2 Computation of the linearized model parameters
8.1.3 Linearized model without PSS
8.1.4 Linearized model with PSS
8.2 Inter-area oscillations
8.2.1 Consensus control
8.2.2 Power system viewed as a networked control problem
8.2.3 Case study
8.3 Subsynchronous resonances
8.3.1 Small-signal model for the mechanical system
8.3.2 Small-signal model for complex power for an RLC circuit
8.3.3 Stability analysis

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