# Power System Analysis (Per Unit Representation & Topology, Z-Bus formulation)

Published by uLektz

Course Code:ULZ0271

Author:uLektz

University:

Regulation:2017

Categories:Electrical & Electronics

Format : ePUB3 (DRM Protected)

Type :eBook

Rs.160 Rs.25 Rs.85% off

Description :Power System Analysis (Per Unit Representation & Topology, Z-Bus formulation) of ULZ0271 covers the latest syllabus prescribed by General for All University for regulation 2017. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### UNIT –I: Per Unit Representation & Topology

1.1 Per Unit Quantities

1.2 Single line diagram – Impedance diagram of a power system

1.3 Graph theory definition – Formation of element node incidence and bus incidence matrices

1.4 Primitive network representation

1.5 Formation of Y–bus matrix by singular transformation and direct inspection methods

###### UNIT –II: Power Flow Studies

2.1 Necessity of power flow studies – Derivation of static power flow equations

2.2 Power flow solution using Gauss-Seidel Method

2.3 Newton Raphson Method (Rectangular and polar coordinates form)

2.4 Decoupled and Fast Decoupled methods (Algorithmic approach) – Problems on 3–bus system only

###### UNIT –III: Z–Bus formulation

3.1 Formation of Z–Bus: 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 to an old bus– Addition of element between an old bus to reference and Addition of element between two old buses (Derivations and Numerical Problems)

3.2 Modification of Z–Bus for the changes in network (Problems)

###### UNIT – IV: Symmetrical Fault Analysis

4.1 3–Phase short circuit currents and reactances of synchronous machine

4.2 Short circuit MVA calculations.

###### UNIT –V: Symmetrical Components & Fault analysis

5.1 Synthesis of unsymmetrical phasor from their symmetrical components–Symmetrical components of unsymmetrical phasor

5.2 Phase - shift of symmetrical components in Y–Δ–Power in terms of symmetrical components

5.3 Sequence networks – Positive, negative and zero sequence networks–

5.4 Various types of faults LG– LL– LLG and LLL on unloaded alternator–unsymmetrical faults on power system

###### UNIT – VI: Power System Stability Analysis

6.1 Elementary concepts of Steady state– Dynamic and Transient Stabilities

6.2 Description of Steady State Stability Power Limit–Transfer Reactance–Synchronizing Power Coefficient

6.3 Power Angle Curve and Determination of Steady State Stability

6.4 Derivation of Swing Equation

6.5 Determination of Transient Stability by Equal Area Criterion–Application of Equal Area Criterion–Methods to improve steady state and transient stability