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1. Department of Electrical Engineering,
University of Engineering and Technology, Lahore
Voltage Stability through FACTS Devices
using PSS/E in QESCO Network
Group No: 37
Project Advisor: Dr. Suhail Aftab Qureshi
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

2. Team Introduction
Aimen Ayyub(Team Leader)
2014-EE-152
Specialization: Power
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018
Amna Irshad
2014-EE-154
Specialization: Power
Uneeza Irfan
2014-EE-153
Specialization: Power
Mohsin Mir
2014-EE-044
Specialization: Power

3. Problem Statement
• Unstable QESCO Network
• High Loads
• Transmission Line Losses
• Large distance between generators and loads
• Low Reactive Power Compensation
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

4. Proposed Solution
• Usage of SVCs (Static VAR Compensators)
• Load Flow Analysis
• Transient State Analysis
• Performing various analysis under outage consitions
• Simulations through PSS/E
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

5. Flow Diagram
Steady State
modelling of
selected grid system
Load flow simulation
and PV/QV analysis
Proposing fixed
shunts for better
voltage profile
PV/QV analysis to
assess the benefit of
fixed shunts

6. Flow Diagram
PV/QV analysis to
assess the benefit of
fixed shunts
Dynamic Modelling
of SVCs
Transient Stability
Simulations
Proposing additional
shunts or SVCs for
improved voltage
profile

7. Flow Diagram
Proposing additional
shunts or SVCs for
improved voltage
profile
Transient stability
simulations with
proposed devices
Assessment of reduction
in transmission losses with
the proposed reactive
power solution through
load flow simulations

8. QESCO Network

9. Single Line Diagram of Selected System

10. What are FACTS?
• Devices to increase
1. Controllability of system
2. Power transfer capability
• Static VAR Compensators (SVCs) – an electronic device
whose output is adjusted to exchange capacitive or inductive
current to maintain or control bus voltage
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

11. FACTS Devices

12. FACTS Devices

13. PSS/E
• Power System Simulator for Engineering (PSS®E—often
written as PSS/E) is a software tool used by power system
engineers to simulate electrical transmission networks in
steady-state conditions as well as over timescales of a few
seconds to tens of seconds.

14. PSS/E

15. Applications
• Learning and Mentoring of PSS/E
• Understanding the factors effecting the voltage stability
in power systems
• Achieving better voltage profile in any power system
through similar techniques
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

16. Audience
• Power Planners
• Consultancy Services
• Power Engineers
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

17. What we have done so far?
• Understanding of PSS/E Software
• Selection of System
• Load Flow Analysis without SVCs
• Transient State Analysis without SVCs
• Installation of FACTs
• In-process tuning of SVCs
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

18. Future Deliverables
• Seeking PSS/E related projects
• Power Planning
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

19. Gantt Chart
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018

20. References
• K.R.Padiyar, “FACTS Controllers In Power Transmission
and Distribution”, New Delhi: New Age International
Pvt Ltd Publishers, 2007.
• Mgunda, M.C. “Optimization of Power Transformer
Design: Losses, Voltage Regulation and Tests”, Journal
of Power and Energy Engineering, 5, 45-75. 2017.
[Online]
Available:https://doi.org/10.4236/jpee.2017.52004
Undergraduate Final Year Project Presentation
Dated: 1st April, 2018