WIND TURBINE GENERATORS POWER SYSTEM MODEL HAVE BEEN DONE WITH THE HELP OF MATLAB SIMULINK SOFTWARE.

1. Simulation of
Wind Turbine
Generator
Using MATLAB
Simulink

2. Group Members
Shiv Prakash (1859026)
Rahul Chaudhuri(1859030)
Rahul Bhattacharyya(1859022)
Souradeep Halder(1859082)
Shreyansh Kashera(1859067)

3. Presentation Outline
• Abstract
• Background
• Wind Turbine Generators (WTGs)
• Types of WTGs
• DFIG Model
• Simulink Design
• Results and Discussion
• Conclusion

4. Abstract
 Wind energy utilization for power generation purpose is becoming high
interest in electrical power production as a result of easy access to the wind
and not be affected by any environment that is clean and sustainable
source of energy.
 In this project a mathematical model and its parameters has been studied
that affect the electrical output power generated by the wind turbine.
 The modeling and simulation technique will play great role in the design
and analysis of these wind turbines.
 Matlab-Simulink is one of the most common software, which is important
for modeling, and simulation of dynamic systems. It provides a graphical
interface, easy to access, design, build and verify mathematical models.

5. Background
INTRODUCTION
 Wind turbines convert wind energy to electricity for distribution.
 Aerodynamic modeling is used to determine the optimum tower
height, control systems, number of blades and blade shape.

6. Renewable & Wind Electricity Share %
Top Countries % share of electricity
production from renewable sources
Top Countries percentage share of
electricity production from Wind sources

7. Types of Wind Turbine
Horizontal Axis Wind Turbine Vertical Axis Wind Turbine

8. Wind Turbine Characteristics
Turbine Components
Aerodynamics
Wind Speed
Pitch Angle

9. Wind Turbine Components
3 Categories of Components
Mechanical Components
Electrical Components
Control Components

10. Wind Turbine Aerodynamics
 The angle at which the wind strikes the turbine
blade is called the angle of attack.
 Lift is a component of an aerodynamic force
exerted on a body that is perpendicular to a
fluid (such as air) flowing past it.
 The smaller the drag, the more efficient the
turbine is in harvesting wind energy.
 High tip speed is defined as speeds between 65
and 85 m/s, which is about 145 to 190 mph.

11. Wind Speed

12. Wind Speed Power Curve
 The power to wind speed is carried
out by each turbine’s performance
curve called Power Curve.
 Wind turbine peak performance
occurs when the output of the wind
turbine generator is at or above its
rated output.
 The wind power curve indicates how
much power a wind turbine should
produce at any given wind speed.
 Peak power is the amount of electrical
power the wind turbine can produce
at the highest rated wind speed.

13. Wind Turbine Pitch Angle
 Wind turbine blade pitch angle can have a
significant impact on the power curve and production
of the turbine.
 A pitch angle measurement can be
calculated during the operational phase of your
wind assets.
 Pitch angles (measured from the theoretical
0° position) can have a significant impact on the
power curve and the production of the turbine.

14. Wind
model
Wind turbine
or
aerodynamic
system
Mechanical
system
Electric
machine (DFIG)
Network
model
Converters
Governorcontrol
or pitch control
system Converter control
Wind turbine
control strategy
Vω
Bita
Bitaref
Vgrid
Qref
Vdc
ref
Ωt
ωm
ref
Vcon
ref
Icon
ref
Vg
Vgrid
ωm
Tem
Tt
Wind Turbine Model

15. Wind Turbine Generators (WTGs)
The Generator is the component that converts the mechanical
energy from the rotor to electrical energy.

16. Types of WTGs
The most common electrical generators used in
Wind Turbines are
 Induction generators (IGs)
 Doubly fed induction generators (DFIGs)
 permanent magnet synchronous generators (PMSGs).

17. Doubly Fed Induction Generator (DFIG)
 The doubly-fed induction generator (DFIG) with the back-to-back converter is
a system frequently used in wind turbines.
 Traditional wind turbines have fixed turning speeds, while DFIG enables wind
turbines to operate with various range of speeds.
 Majority of wind farms are using variable speed wind turbines equipped with
doubly fed induction generators (DFIG) due to their advantages over other
wind turbine generators (WTGs)

18. DFIG Model
 Power equations
 Torque expression
 Converter equation GSC
RSC
+
-
-
Vg
Ig
Ir
+
Vr
network
IM
Gear box
DFIG
Controls
DFIG model

19. Simulink Design Wind Turbine
1.5(MW)
Wind Turbine
Power Plant

20. Simulation of wind turbine properties

21. Results and Discussion
The relation between wind speed and Cp.
The relation between wind speed and power.

22. Turbine speed vs. o/p power for pitch angle 10 degree Turbine speed vs. o/p power for pitch angle 0 degree
Results and Discussion

23. Scope Display of Matlab Simulink

24. Conclusion
 Studies of wind energy for power generation purposes have a great interest in the
electricity market.
 wind energy may enhance the renewable power generation capabilities, increase
its capacity factor, and participate in generating electricity at good costs.
 Many parameters taken into consideration during manufacturing or installation of
wind turbines, such as air density, wind speed, and power coefficient as a function
of pitchangle and blade tip speed.
 In this research modeling and simulating of a wind turbine generator by using
Matlab/Simulink have been done.
 After building the model, it has been used in order to verify its usefulness, Many
wind speed levels taken into consideration i.e. from low with 8 m/s as the mean
value, medium with 10-12 m/s as the mean value and high with 14 m/s as the mean
value. These allowed predicting and supervising the active and reactive power
produced by the system

25. References
 M. Vyas, M. Singh, and S. Santoso,, "Handbook Of Wind Power System",
Springer, 2011.
 Thomas Ackerman, "Wind Power In Power Systems", Royal Institute of
Technology Stockholm, Sweden, Edition: John Wiley and sons, Ltd, 2005.
 T. Burton, D. Shape, N. Jenkins, E. Bossany, "Wind Energy Handbook", J.
Wiley & Sons, Ltd. 2001.
 Herbert, G. M. Iniyan, S., Sreevalsan, E, and Rajapandian,. "Review of Wind
Energy Technologies", Renewable and Sustainable Energy Reviews, S.A.
2007.
 T. Petru and T. Thirnger, "Modelling Of Wind Turbines For Power System
Studies", IEEE Trans. Energy Convers. Vol. 17, No. 4, pp. 1132-1139, Nov.
2002.

26. References
 C. M. Ong, "Dynamic Simulation Of Electric Machinery using Matlab/Simulink",
Prentice-Hall PTR, 1998.
 Fingersh, L., Hand, M., and Laxson, A. 2006. "Wind Turbine Design Cost And Scaling
Model", Technical Report NREL/TP-500-40566: Cole Boulevard, Golden, Colorado,
2009.
 "Simulink-Simulation and Model-Based Design/Mathworks",
Mathworks.com/simulink, 2012.
 L. Hansen, P. Madsen, F. Blaabjerg, H. Christensen, U. Lindhard, and K. Eskildsen,
"Generators And Power Electronics Technology For Wind Turbines", in the 27th
Annual Conference of the IEEE Industrial Electronics Society (IECON), vol. 3, pp.
2000 –2005, 2001.
 M. G. Gracia, M. P. Comech, J. Salla and A. Llombart, "Modeling Wind Farms for
Grid Disturbance Studies", Renewable Energy, 33 (2008) 2109–2121.

27. Thank
You