Description
Book SynopsisThis book presents a general framework for modelling power system devices to develop complete electromechanical models for synchronous machines, induction machines, and power electronic devices. It also presents linear system analysis tools that are specific to power systems and which are not generally taught in undergraduate linear system courses. Lastly, the book covers the application of the models, analysis and tools to the design of automatic voltage controllers and power system stabilisers, both for single-machine-infinite-bus systems and multi-machine interconnected systems.
In most textbooks modelling, dynamic analysis, and control are closely linked to the computation methods used for analysis and design. In contrast, this book separates the essential principles and the computational methods used for power system dynamics and control. The clear distinction between principles and methods makes the potentially daunting task of designing controllers for power systems much easier to approach.
A rich set of exercises is also included, and represents an integral part of the book. Students can immediately apply—using any computational tool or software—the essential principles discussed here to practical problems, helping them master the essentials.
Table of Contents1 Introduction The dq0 Transformation
Device Models
Network Modelling
2 Synchronous Machines
The Model
Equations in Per Unit System
Steady-state Conditions
Single Machine Infinite Bus (SMIB)
Exercises
Direct-axis Transient Inductance
Quadrature-axis Transient Inductance
Steady-state Output Power
Voltage behind Transient Inductance
Equivalence of two models
Power Transfer Curves
Simulation I
Steady-state
Simulation II
Simulation III
Three-phase Short-circuit Simulation
Equal-Area Criterion
Step Change in field voltage
V-curves
Phasor to dq-Frame - Part I
Phasor to dq-Frame - Part II
Transmission line inductance
Terminal Voltage
Operational Impedance
Operational Impedance & Sub-transient Model
3 Induction Machines The Model
Steady-state conditions
Exercise
Steady-State Equivalent Circuit
Steady-State Output Power
Steady-State Torque vs Speed
Doubly-
fed Induction Machine - Steady-state
Voltage Behind Transient Inductance
Simulation
Doubly-fed Induction Machine
Vector Control
Dynamic Equations with delta
Phasor to dq-Frame - Part I
Phasor to dq-Frame - Part II
4 Network Equations Power Systems
Machines as Active Loads
Submatrices in the Model Equations
Forming Z-matrices
Forming D-matrices
Network Equations Referred to Machine Internal Variables
5 Simulations
SMIB Simulation Plots
Induction Machine Simulation
Four-bus System
Mat
lab Scr
ipts Saturation
6 Linear Control: Analysis
Introduction
Linear Differential Equations
First Order Differential Equations
Second Order Differential Equations
Simultaneous First Order Differential Equations
Second Order System Response
Modal Analysis
Eigenvalue Sensitivity
Participation Matrix
Frequency Response
Root-Locus
Residues
Dominant Residue Method
Feedback and Residues
Linearisation
Linearisation by Perturbation
Synchronous Machine Linearisation
Single Machine Infinite Bus Equations (without AVR)
Single Machine Infinite Bus Equations (with AVR)
Exercises
Synchronous Machine Damping Torque
&nbs
p; Synch
ronising and Damping Torques
Multi-machine Systems
7 AVR Tuning
AVR Performance Requirements
AVR Models
Practical Exciters
Control for Governors
Ziegler-Nichols Tuning Method for PID Control
PID Control of Governor
8 Power System Stabilisers
PSS Design
Other PSS Design Methods
Two Lead Blocks
Multi-machine System PSS Design
Gpvr(s) for multi-machine systems
Eigenvalue Sensitivity and Participation Matrix
Dynamic Simulation - Local Mode
Dynamic Simulation - Inter-area Mode
Eigenvectors and Participation Factors
