. Power contain in the wind is the form of kinetic energy. It is given as following equation as: P=0.5ρAV^3 Where, ρ= Air density, (kg/m3), A= Area which is normal to the wind speed (m2), V = Wind speed (m/s), P = power of wind Contigency analysis: Contingency analysis is a well-known function in modern Energy Management Systems. Contingency Analysis of a power system is a major activity in power system planning and operation. In general, an outage of one transmission line or transformer may lead to overloads in other branches and/or sudden system voltage rise or drop. Contingency analysis is used to calculate violations. Eigen value analysis: Increasingly, the investigation of the small-signal stability of power systems is considered an important task, complementary to the usual transient stability investigations. To study the small-signal stability of a power system, eigenvalue analysis is used. In the power systems area, studying eigenvalues does not have a history as long as that of transient stability analysis and the results are difficult to verify experimentally. It is therefore important to study the capabilities of a power system dynamics simulation software package used for small-signal stability analysis carefully, before applying it to practical problems. In this paper, the eigenvalue analysis capabilities of two power system dynamics simulation software packages are analysed and the results are compared.

1. A Presentation
On
“IMPACT OF WIND FARM ON POWER SYSTEM DYNAMICS AND
STABILITY USING PSAT SIMULATION”
SUBMITTED BY:
BIKASH GYAWALI 2072/BEL/05
CHET RAJ KANDEL 2072/BEL/09
DESH BANDHU SEDAI 2072/BEL/11
MANISH RAUT 2072/BEL/22
SUBMITTED TO:
DEPARTMENT OF ELECTRICAL ENGINEERING

2. History:
 People used wind energy to propel boats along the Nile River
as early as 5,000 BC.
 In the late 1800s and early 1900s, small wind-electric
generators (turbines) were also widely used.

3. INTRODUCTION:
 The whole project is done in MATLAB using PSAT
 The wind turbine used is of doubly fed induction generator.
 The 14 BUS system is used to analyze the impact of wind farm on power system dynamics and stability.
 The voltage level generated is of 11kv.
 The connection of wind model and wind turbine model is done in BUS1.

4. WIND POWER:
𝑃 = 0.5𝜌𝐴𝑉3
Where, 𝜌= Air density, (kg/𝑚3
),
A= Area which is normal to the wind speed (𝑚2),
V = Wind speed (m/s),
P = power of wind
And
𝑃 = 0.5𝜌𝜋𝑅2
𝑉3
Cp(ℷ,β)
Cp(ℷ,β) depend on manufacturer and it is a factor which represent how much wind energy is converted to the mechanical
power by wind turbine.
Where, ℷ=Tip speed ratio
β=Blade pitch angle.

5. WHY WIND POWER?
 It decreases the burden for national power plant.
 It is available for local people in cheaper price.
 It is eco-friendly.

6. Start
Check the report
Matlab circuit Simulation
simulation
Parameter Update
simulation
Is load
flow
success
ful?
Analyze and interpret
End
WORK
FLOWCHART

7. 14 BUS SYSTEM WITHOUT WIND TURBINE:

8. CONVERGENCE OF THE SYSTEM WITHOUT WIND TURBINE:

9. 14 BUS SYSTEM WITH WIND TURBINE:

10. Why double fed induction generator?
 Due to advantages of high energy efficiency and controllability.
 The power could be supplied to the grid through the stator in all the
three modes of operation, namely, sub synchronous, synchronous
and super- synchronous modes.
 This provides DFIG a unique feature beyond the conventional
induction generator

11. CONVERGENCE OF THE SYSTEM WITH WIND TURBINE:

12. EIGEN VALUE ANALYSIS
 More the coordinates are shifted towards the left of axis , more is the system stable.
 When the wind turbine is connected to the BUS1 the coordinates should shift more towards left.
 The system becomes more stable if the plot of coordinates shifts more towards left.

14. 4. GANTT CHART
Date
works
Within
Baisak
h 26th
Withi
n
Jestha
1st
Withi
n
Jestha
3rd
Withi
n
Jestha
10th
Withi
n
jestha
20th
Withi
n
ashar
1st
Withi
n
ashar
15th
Withi
n
ashar
31st
Title selection
Prepare
proposal
Research and
report
Collection of
circuit
parameters
Matlab circuit
construction
Load flow
analysis
Study of
Eigen value
analysis
Study of
contingency
analysis

15. Matlab circuit
upgrading and
modification
Stable
synchronization
of wind turbine
Output for
Eigen value
Output for
contingency
analysis
Final matlab
simulation
using PSAT
Modeling of
doubly fed
induction
generator
power system
dynamics
analysis

16. Work in progress
 Study of Eigen value analysis.
 Study of contingency analysis.
 Mat lab circuit upgrading and modification.
 Stable synchronization of wind turbine

17. Work Remaining
 Output for Eigen value.
 Output for contingency analysis.
 Final mat lab simulation using PSAT.
 Modeling of doubly fed induction generator.
 Voltage profile and power system dynamics analysis.

18. Challenges
 use of power electronics such as compensator, converter,etc. in wind
generation systems introduces voltages and current harmonics into
the power system.
 As wind energy is a non-controllable energy source, it always have
serious issue regarding voltage stability and transient stability.
 Future expansion of the loads cannot be predicted accurately,
generator outputs and loads fluctuate strongly in different time
frames.

19. Thank you!!!