1. DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING
COURSE PLAN
Name of the Staff : P.Nagarjuna
Subject with Code : Power System Analysis (9A02602)
Course : B.Tech
Semester/Branch : III-II / EEE
Prerequisites:
• Electric circuit analysis, Mathematical model equations
• Transmission line parameters, graph theory, elementary matrix and computer
programming
Objectives:
1. Building of network impedance and admittance matrices of the power system network.
2. Representation of one line diagram of power system network including generators,
transformers, transmission lines and portection elements.
3. Solving power flow problems by application of Gauss and Newton Raphson method.
4. Students could understand the main uncertainty characterizes of power system.
5. Students could master the application of probabilistic method in power flow calculation,
short-circuit calculation and stability analysis of power system
6. Understand the formulation of the power flow problem, and have the ability to cast any
given system in this framework.
Motivation:
This course treats models and computation methods for power systems. The models and the
methods are general and can be applied to industrial power system and local distribution
networks as well as transmission networks. In the course assignments these models and methods
are applied to solve realistic problems with computer programs written in MATLAB.
The following areas are treated in this course
Balanced system: three-phase systems, single-line equivalent, the per-unit system, circuit
theorems, admittance matrixes, impedance matrixes, models of components in power systems
such as lines, generators, cables, transformers, loads etc.

2. Load flow analysis: problem formulation, models, solution methods.
Unbalanced system: symmetrical components, calculation methods, models of transmission
lines, transformers, generators etc.
Fault analysis: system models, and calculation of fault currents where there is an unbalanced
fault.
Learning Outcomes:
Upon completion of Course the student would be able to
1. Apply the load flow application to various power system problems like minimization of
transmission line losses, minimization of fuel cost etc.,
2. Create computational models for analysis of both symmetrical and unsymmetrical
conditions in power systems
3. Design a power system solution based on the problem requirements and realistic
constrain
PO Mapping with Course Outcomes :
PO Descruiption CO1 CO2 CO3
PO:a an ability to apply knowledge of mathematics, science and engineering yes yes yes
PO:b an ability to design and conduct experiments, as well as to analyze and interpret
data
yes yes
PO:c an ability to design a system, component or process to meet desired needs yes yes
PO:d an ability to function on multidisciplinary teams yes yes
PO:e an ability to identify, formulate, and solve engineering problems yes yes yes
PO:f an understanding of professional and ethical responsibility
PO:g an ability to communicate effectively
PO:h the broad education necessary to understand the impact of engineering solutions
in a global and societal context
PO:i a recognition of the need for, and an ability to engage in life‐long learning
PO:j a knowledge of contemporary issues
PO:k an ability to use the techniques, skills, and modern engineering tools necessary
for engineering practice
yes yes yes

3. TEXT BOOKS:
T1: Computer Methods in Power Systems, Stagg Ei–Abiad & Stags, Mc Graw–Hill Edition.
T2: Modern Power System Analysis – by I.J.Nagarath & D.P.Kothari: Tata Mc Graw Hill Publishing
Company, 2nd
Edition.
T3: Power System Analysis by Nagsarkar and Sukhijia, Oxford University Press.
REFERENCE BOOKS:
R1 Electrical Power System Analysis by Dr.S.Siva Nagaraju and B. Rami Reddy, published by
University Science Press.
R2 Power System Analysis by Grainger and Stevenson, Tata Mc Graw Hill.
R3 Computer Techniques in Power System Analysis by M.A.Pai, Second Edition, TMH.
R4 Power System Analysis and Design by B.R.Gupta, S.Chand & Co, 6th
Revised Edition, 2010.
R5 computer modeling of electrical power systems by J.Arrillaga and N.R.Watson, john Wiley Student
Edition, 2/e.
R6 Computer Techniques and Models in Power System by K.Uma Rao, I.K.International.
R7 Electrical Power Systems by S.A.Nasar, Schaum's Outline Series, Revised 1st
Edition, TMH.
R8 Power System Analysis by Glovar and Sarma, Thomson Publishers.
Web Resources:
W1 http://elearning.vtu.ac.in/P6/enotes/EE61
W1 http://www.elect.mrt.ac.lk/EE423_%20Fault_Analysis
W1 http://www.egr.unlv.edu/~eebag/Power%20System%20Representations
W1 http://home.iitk.ac.in/~saikatc/EE632_files/VS_SC
Lesson Plan:
S.No Topic Name Reference Book No.of Periods Cumulative No.
of Periods
Delivery
Method
UNIT – I
1. Representation of power system
elements
1 1 Chalk & Talk
2 Essential characteristics of good
algorithm
1 2 Chalk & Talk
3 Steps involved in solving a
problem using a digital computer
1 3 Chalk & Talk
4 Graph theory R1(1–3 ) S1 1 4 Seminar
5 Steps involved in solving a
problem using a digital
computer(T)
1 5 Chalk & Talk
6 Bus incidence matrix, Ybus
formation by direct and singular
transformation methods
R1(3–15 ) 2 7 Chalk & Talk

4. 7 Numerical problems R1(21-30) 2 9 Chalk & Talk
8 Formation of singular
transformation method (T)
R1(9-12) 1 10 Chalk & Talk
UNIT – II
9 Formation of Z bus
Partial network and algorithm
R1(193 –195) 1 11 Chalk & Talk
10 Addition of element from new bus
to reference bus and from a new
bus to an old bus
R1(195– 197) 1 12 Chalk & Talk
11 Addition of element between an
old bus to reference bus and
R1(197 – 199) 1 13 Chalk & Talk
12 Addition of element between an
old bus to reference bus and
between two old buses
R1(199 – 200) 1 14 Chalk & Talk
13 Formation of Z bus
Partial network and algorithm(T)
R1(193 – 195) 1 15 Chalk & Talk
14 Mutually coupled branchs and
links of Zbus
R1(201 – 206) 2 17 Chalk & Talk
15 Numerical problems R1(208 – 224) 2 19 Chalk & Talk
Assignments
UNIT – III
16 Data for power flow studies R1(66 – 71) 1 19 PPT
17 Derivation of static load flow
equations and acceleration
factor
R1(72 –76 ) 1 20 Chalk & Talk
18 Load flow solution using Gauss
Seidel Method
With and with out PV buses
algorithm and flow chart
R1(77–83 ) 3 23 Chalk & Talk
19 Gauss seidel method with PV
buses(T)
R1(80– 83) 1 24 Chalk & Talk
20 Determination of bus voltages
Injected active and reactive
power line flows and losses
R1(100– 104) 2 26 Chalk & Talk
21 Numerical problems R1(104–128 ) 3 29 Chalk & Talk
Assignments
UNIT – IV
22 Newton Raphson Method
With and with out PV buses
R1(88 – 93) 2 31 Chalk & Talk
23 Derivation of jacobian elements,
algorithm and flowchart
R1( 93–98) 2 33 Chalk & Talk
24 NR method with PV buses(T) R1(91-93) 1 34 Chalk & Talk

5. 25 Decoupled and fast decoupled
methods, comparison of different
methods
R1(98– 102) S1 1 36 Seminar
26 Numerical problems R1(102 – 128) 2 38 Chalk & Talk
UNIT – V
Mid examination key discussion
27 Per unit equivalent reactance
network of a three phase power
system
R1(138-141) 2 40 Chalk & Talk
28 Numerical problems R1(141-159) 2 42 Chalk & Talk
29 Short circuit current and MVA
calculations, fault levels
R1(253 – 261) 1 43 PPT
30 Application of series reactors R1(262 – 266) S1 1 44 Seminar
31 Numerical problems R1(270– 287) 2 46 Chalk & Talk
UNIT-VI
32 Symmetrical component
transformation, positive, negative
and zero sequence componenets of
V, I and Z
R1(164-169) 2 48 Chalk & Talk
33 Positive, negative and zero
Sequence networks
R1(169-177) 1 49 Chalk & Talk
34 Sequence networks(T) R1(164-177) 1 50 Chalk & Talk
35 Numerical problems R1(178-190) 2 52 Chalk & Talk
36 Unsymmetrical fault analysis
LG, LL, LLG with fault and with
out fault impedance
R1(295-310) 2 54 Chalk & Talk
37 Numerical problems R1(311-340) 2 56 Chalk & Talk
UNIT-VII
38 Elementary concepts of steady
state, dynamic and transient
stabilities
R1(348-351 ) 2 58 Chalk & Talk
39 Description of steady state stability
power limit, transfer reactance
R1(355-358) 1 59 Chalk & Talk
40 Steady state stability (T) R1(348-351 ) 1 60 PPT
41 Synchronizing power coefficient,
Power angle curve and methods to
improve steady state stability
R1(354-358) 2 62 Chalk & Talk
UNIT-VIII
42 Derivation of swing equation R1(352-354 ) 1 63 Chalk & Talk
43 Determination of transient stability R1( 362-368 ) 2 65 Chalk & Talk

6. by equal area criterion and
application
44 Critical clear angle calculation
solution and numerical problems
R1(368-390) 3 68 Chalk & Talk
Portions for monthly test I, II and III:
Test No Topic No
I 1-26
II 27-44
Topics beyond the syllabus:
Methods are applied to solve realistic problems with computer programs written in MATLAB.
Seminar Topics:
1. Graph theory
2. Series Reactors
3. Decoupled and Fast decoupled methods
Missing topics:
1. Convergence of load flow methods
2. Introduction to vector and matrix algebra
Attendance policy:
1. A student shall be eligible to appear for university examinations if he acquires a minimum of
75% of attendance in aggregate of all the subjects in a semester.
2. Shortage of attendance below 65% in aggregate shall in No case be condoned.
3. Condonation of shortage of attendance in aggregate up to 10% (65% and above and below 75%)
in each semester may be granted by the College Academic Committee.
Evaluation:
1. The performance of a student in each semester shall be evaluated subject wise with a
maximum of 100 marks for theory.
2. For theory subjects the distribution shall be 30 marks for internal evaluation and 70
marksfor the end examination.
3. For theory subjects, during the semester there shall be two midterm examinations. Each
mid term examination consists of objective paper for 10 marks and subjective paper for
20 marks with duration of 1 hour 50 minutes (20 minutes for objective and 90 minutes for
subjective paper).
4. Objective paper is set for 20 bits for 10 marks. Subjective paper shall contain 5 a question
of which student has to answer 3 questions evaluated for 20 marks.

7. Assignments:
1. Building of Zbus matrices and numerical problems
2. Gauss siedel method derivations and numerical problems
Guest talks:
Prepared By Verified By
P.NAGARJUNA HOD/EEE