__EE3501__

__POWER SYSTEM ANALYSIS__

**COURSE OBJECTIVES:**

•
Impact knowledge on need for operational studies, andTo model the power system
under steady state operating condition.

•
To understand and apply iterative techniques for power flow analysis.

•
To model of carry out short circuit studies for power system during symmetrical
fault.

•
To model of carry out short circuit - studies during

•
To study about the various methods for analyzing power system stability

**UNIT I**

**POWER SYSTEM**

Need
for system planning and operational studies - Power scenario in India - Power
system components, Representation - Single line diagram - per unit quantities -
p.u. impedance diagram - p.u. reactance diagram, Network graph Theory - Bus
incidence matrices, Primitive parameters, Formation of bus admittance matrix -
Direct inspection method - Singular Transformation method.

**UNIT II**

**POWER FLOW ANALYSIS**

Bus
classification - Formulation of Power Flow problem in polar coordinates - Power
flow solution using Gauss Seidel method Handling of Voltage controlled buses -
Power Flow Solution by Newton Raphson method - Flow charts - Comparison of
methods.

**UNIT III**

**SYMMETRICAL FAULT ANALYSIS**

Assumptions
in short circuit analysis - Symmetrical short circuit analysis using Thevenin's
theorem - Bus Impedance matrix building algorithm (without mutual coupling) -
Symmetrical fault analysis through bus impedance matrix - Post fault bus
voltages - Fault level - Current limiting reactors.

**UNIT IV**

**UNSYMMETRICAL FAULT ANALYSIS**

Symmetrical
components - Sequence impedances - Sequence networks - Analysis of
unsymmetrical faults at generator terminals: LG, LL and LLG - unsymmetrical
fault occurring at any point in a power system.

**UNIT V**

**STABILITY ANALYSIS**

Classification
of power system stability - Rotor angle stability - Power-Angle equation -
Steady state stability - Swing equation - Solution of swing equation by step by
step method - Swing curve, Equal area criterion - Critical clearing angle and
time, Multi-machine stability analysis - modified Euler method.

**TOTAL:
45 PERIODS**

**COURSE OUTCOMES:**

Upon
the successful completion of the course, students should have the:

**CO1:**
Ability to model the power system under steady state operating condition.

**CO2:**
Ability to carry out power flow analysis using.

**CO3:**
Ability to infer the significance of short circuit studies in designing circuit
breakers.

**CO4:**
Ability to analyze the state of the power system for various unsymmetrical
faults.

**CO5:**
Ability to analyze the stability of power system using different methods.

**TEXT BOOKS:**

1.
John J. Grainger, William D. Stevenson, Jr, 'Power System Analysis', Mc Graw
Hill Education (India) Private Limited, New Delhi, 2017.

2.
Kothari D.P. and Nagrath I.J., 'Power System Engineering', Tata McGraw-Hill
Education, 3rd edition 2019.

3.
Hadi Saadat, 'Power System Analysis', Tata McGraw Hill Education Pvt. Ltd., New
Delhi, 21st reprint, 2010.

**REFERENCES**

1.
Pai M A, 'Computer Techniques in Power System Analysis', Tata Mc Graw-Hill
Publishing Company Ltd., New Delhi, Second Edition, 2007.

2.
J. Duncan Glover, Mulukutla S.Sarma, Thomas J. Overbye, 'Power System Analysis
& Design', Cengage Learning, Fifth Edition, 2012.

3.
P. Venkatesh, B. V. Manikandan, A. Srinivasan, S. Charles Raja,
"Electrical Power Systems: Analysis, Security and Deregulation"
Prentice Hall India (PHI), second edition - 2017

4.
Gupta B.R., 'Power System - Analysis and Design', S. Chand Publishing, Reissue
edition 2005.

5.
Kundur P. Power System Stability and Control', Tata McGraw Hill Education Pvt.
Ltd., New Delhi, 2013