Tuesday, June 19, 2012


E-Book Details:

Title:
Power System Analysis
Publisher:
BS Publications
Author:
P.S.R. Murthy
Edition:
2nd, illustrated 2009
Format:
PDF
ISBN:
0124705057
EAN:
978-81-7800-161-6
No.ofPages:
338
Book Description:
Power System analysis is a pre-requisite course for electrical power engineering students.
In Chapter I. introductory concepts about a Power system, network models, faults and
analysis;the primitive network and stability are presented.
Chapter 2 deals with the graph theory that is relevant to various incidence matrices required
for network modelling are explained.
Chapter 3 explains the various incidence matrices and network matrices.
Chapter 4 discusses, step-by-step method of building of network matrices.
Chapter 5 deals with power flow studies. Both Gauss-Seidel method and Newton-Raphson
methods are explained. In Newton-Raphson method both the Cartesion coordinates method
and polar coordinates methods are discussed.
In chapter 6 short circuit analysis is explained Per unit quantity and percentage values are
defined. Analysis for symmetrical faults is discussed. The utility of reactors for bus bar and
generator protection is also explained.
Unbalanced fault analysis is presented in chapter 7. Use of symmetrical components and
network connections are explained.
Chapter 8 deals with the power system stability problem. Steady state stability. transient
stability and dynamic stability are discussed.
It is earnestly hoped that this book will meet the requirements of students in the subject
power system analysis.
Table of Contents:
UNIT -I Power System Network Matrices-1

Graph Theory: Definitions, Bus Incidence Matrix, Ybus formation by Direct and Singular Transformation Methods, Numerical Problems.
UNIT -II Power System Network Matrices-2
Formation of ZBus: Partial network, Algorithm for the Modification of ZBus Matrix for addition element for the following cases: Addition of element from a new bus to reference, Addition of element from a new bus toan old bus, Addition of element between an old bus to reference and Addition of element between two old busses (Derivations and Numerical Problems).- Modification of ZBus for the changes in network ( Problems)
UNIT –III Power flow Studies-1
Necessity of Power Flow Studies – Data for Power Flow Studies – Derivation of Static load flow equations– Load flow solutions using Gauss Seidel Method: Acceleration Factor, Load flow solution with and without P-V buses, Algorithm and Flowchart. Numerical Load flow Solution for Simple Power Systems (Max. 3-Buses): Determination of Bus Voltages, Injected Active and Reactive Powers (Sample One Iteration only) and finding Line Flows/Losses for the given Bus Voltages.
UNIT – IV Power flow Studies-2
Newton Raphson Method in Rectangular and Polar Co-Ordinates Form: Load Flow Solution with or
without PV Busses- Derivation of Jacobian Elements, Algorithm and Flowchart.
Decoupled and Fast Decoupled Methods.- Comparison of Different Methods – DC load Flow
UNIT – V Short Circuit Analysis-1
Per-Unit System of Representation. Per-Unit equivalent reactance network of a three phase Power
System, Numerical Problems. Symmetrical fault Analysis: Short Circuit Current and MVA Calculations, Fault levels, Application of Series Reactors, Numerical Problems.
UNIT –VI Short Circuit Analysis-2
Symmetrical Component Theory: Symmetrical Component Transformation, Positive, Negative and Zero sequence components: Voltages, Currents and Impedances. Sequence Networks: Positive, Negative and Zero sequence Networks, Numerical Problems.Unsymmetrical Fault Analysis: LG, LL, LLG faults with and without fault impedance, Numerical Problems.
UNIT –VII Power System Steady State Stability Analysis
Elementary concepts of Steady State, Dynamic and Transient Stabilities. Description of: Steady State Stability Power Limit, Transfer Reactance, Synchronizing Power Coefficient, Power Angle Curve and Determination of Steady State Stability and Methods to improve steady state stability.
UNIT –VIII Power System Transient State Stability Analysis
Derivation of Swing Equation. Determination of Transient Stability by Equal Area Criterion, Application of Equal Area Criterion, Critical Clearing Angle Calculation.- Solution of Swing Equation: Point-by-Point Method. Methods to improve Stability - Application of Auto Reclosing and Fast Operating Circuit
Breakers.

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