1) The document discusses simulation and transient stability analysis of the Kotri Gas Turbine Power Station. It aims to develop a simulation model of the power station in MATLAB and analyze the effects of faults at different locations. 2) The research methodology involves collecting data on equipment ratings, reviewing literature on transient stability, and using MATLAB tools like SimPowerSystems and Power System Blockset to model the power station and simulate faults. 3) The analysis will identify stability problems, determine critical clearing times, and suggest remedies to minimize issues and improve stability of power supplied from the important 174MW power plant.

2. SIMULATION ,MODELING AND TRANSIENT STABILITY ANALYSIS OF GAS
TURBINE POWER STATION KOTRI
M.E in (Electrical Power Engineering)
Initial Seminar
BY
SADDAM HUSSAIN ANSARI
Supervised by
Prof.Dr.Ashfaque Ahmed Hashmani
Co-Supervised by
Prof.Dr. Zubair Ahmed Memon

3. TABLE OF CONTENTS
 Introduction
 Literature review
 Problem Statement
 Objectives
 Research Methodology
 References

4. INTRODUCTION:
POWER SYSTEM STABILITY
Power System Stability: is a tendency of power system to develop restoring forces equal to or greater
then disturbing forces in order to maintain overall equilibrium.
OR
Electric power system ability, for known an original operating condition, to recover equilibrium state
after going through physical disruption, by keeping mostly system preserved or intact .
Steady state stability: ability of power system to remain in synchronism after small and slow
disturbances. This stability is concerned with the determination of upper limit of machine’s loading
before losing synchronism.
Dynamic stability: ability of power system to maintain synchronism under continuous small
disturbances i.e random fluctuations in loads and generation but this can be achieved by inclusion of
automatic control devices such as AVR and different frequency control devices .

5. LITERATURE REVIEW:
TRANSIENT STABILITY
Ability of power system to survive the transitions following a large disturbances and to reach
an acceptable operating condition.
It is the study which helps to find the behavior of synchronous generator during fault
condition or disturbances.
The disturbance in power system can be defined as variation in system parameters or
quantities from their default/intial values .
Transient stability analysis plays an important role for planning, designing, and upgrading
electrical power system network.
Due to increase in interconnection and expansion of grid ,power system is being pushed to
operate nearer to the maximum limits ,so this thing put the system under very stressful
situation and vulnerable to be subjected to the fault so for effective planning, operation and
maximum control there is need of detailed transient stability analysis studies
Prime objective of this study is to ascertain the system to normal value after clearing
transient disturbance .

6. PROBLEM STATEMENT:
WHAT HAPPENS TO SYSTEM IF SEVERE FAULT OCCUR??
In transient state machine is affected by severe impacts mostly in short time following is the
detailed example which states behavior of system
When any sort of severe disturbance occurs such as short circuit occurs on major equipment
then protective relays will come into the action and will isolate that particular element
resulting in series of following cascading problems will occur
• variation of power transfers
• changes in synchronous machine rotor speeds
• variation in voltage at the buses

7. PROBLEM STATEMENT CONTINUE
It is observed system which is subjected to heavy load tends to be accelerate more in
case of faults then the lightly loaded system, where as three phase line to line fault is
most highly unstable fault

8. OBJECTIVES
To develop a simulation model of Gas Turbine Power Station Kotri
A three phase fault will be located to, two different locations to analyze
the effect of fault location and
Critical clearing time(maximum time duration that fault may occur in
power system without loss of stability) of system will be measured.
Providing possible remedies/methods to reduce all those problems
occurring on the plant with the help of obtained MATLAB simulation
results.

9. RESEARCH METHODOLOGY
 Literature survey.
 Data collection (i.e. ratings of different equipment's such as synchronous
generators, transformers and transmission lines installed at the plant) and
gathering all the statistics related to transient stability problems currently or
previously happened at the power plant.
 Working on following MATLAB/SIMULINK toolboxes [14]
 Simpower system.
 Power System Analysis Toolbox.
 Power system block set.

10. IMPACT OF RESEARCH ON COUNTRY DEVELOPMENT
Pakistan is currently going through worst energy crisis i.e. severe load shading and very high unit
rates of electricity. This is both slowing the pace of economic activity and causing public unrest
with prolonged outages of electricity.
Black out of electricity cause huge economic loss and the main contributor of this thing is
unstable power which is being feed by inter-connected grid system. Since gas turbine power
station Kotri is currently producing 174 MW of power, and that is quite huge amount so this
power plant should operate at very high stability.
Therefore during our detailed research work on it, we will try to dig out/analyses all the problems
related to the transient stability and will suggest the possible remedies to minimize these at
maximum level.

11. REFERENCES
[1]. Prabha kundar,John paserba and Sylvain Viter. “Definition and classification of
power system stability,” IEEE/ClGRE Joint Task Force on Stahilia Terms and
Definitions
[2]. KR.Padiyar. “Power system dynamics stability and control,” BS publications-
2008.
[3]. MA. Salam , Hj Morshidi and Nadia Ottman, “Transient stability analysis of
Gadong power station” published in Institute technology brunei 2013.
[4]. P.k Lyambo, and R. Tzonea ,Member IEEE “Transient Stability analysis of IEEE
14-BUS electrical power system” March 9,2007.
[5]. Manoj Kumar Maharana and K.Shanti Swarup. “Identification of operating
states of power system using transient stability analysis” IEEE-2008.
[6]. P.Kundar. “Power system stability and control,” McGraw-Hill-1994.

12. REFERENCE CONTINUE
[7]. Jignesh S patel, Manesh Sinha, “Power system transient stability using ETAP
software, May 2011.
[8]. Lu jinling, Yu lie,Zhu yongli, “Transient stability analysis of electrical power
system by Pc-cluster system technique” ,IEEE-Paper 2006
[9]. MA Slam et.al , “Identifying faults that would impact transient stability of multi-
machine power system by using swing equations of synchronous machines”
[10]. L. S Moulin et. al , “Pattern recognition technique to study the transient
stability of large scale power system”.
[11]. PR Sharma,Narendar Hooda, “Transient stability analysis of power system
using MATLAB”, International Journal of Engineering Sciences & Research
Technology Sciences & Research Technology,September 2012.
[12]. Devender Kumar & Balwinder Singh Surjan, “Transient stability analysis using
MATLAB and neural network” IJACTE Volume-2, Issue-2, 2013

13. REFERENCES CONTINUE
• [13]. Nima Amjady ,Seyed Farough Majedi ,”Transient stability prediction by hybrid intelligent
system” IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 22, NO. 3, AUGUST 2007
• [14]. Santosh B.Kulkarni.”MATLAB/SIMULINK Simulation Tool for Power Systems,”
International journal of power system operation and energy management, 2011.