A SlideShare about How wind turbines generate electricity

1. Mechanical to Electrical
systems

2. HOW WIND TURBINES
GENERATE ELECTRICITY

4. there all composed of the same 3 basic
parts.

5. A. Rotor Blades
B. Shaft
C. Generator
Basic Parts

6. A. Rotor Blades
When wind passes, it forces these rotor
blades to turn.
Basic Parts
The shaft is a rod that connects the
rotor blades to the generator.

7. B. Shaft
Its main purpose is to transfer the
rotational mechanical energy of the
rotor blades to the generator.
Basic Parts

8. C. Generator
3 Basic Parts
Finally, the generator is a device
designed to convert mechanical energy
into electrical energy.
It uses the principle of electromagnetic
induction.

9. Basic Processes
B. Converting to Electricity
A. Capturing Wind Energy

10. Basic Processes
A. Capturing Wind Energy
Wind energy is captured using the wind
turbine’s rotor blades.

11. Basic Processes
A. Capturing Wind Energy
When wind passes through the blades, two
aerodynamic forces are at work.

12. Basic Processes
A. Capturing Wind Energy

13. Basic Processes
A. Capturing Wind Energy
These two forces cause the rotor blades to
turn, depending on how much force the
wind exerts on them.
The process converts the wind’s kinetic
energy to mechanical energy
(turning of rotor blades)

14. Basic Processes
B. Converting to Electricity
Which makes the
generator
produce
electricity!
the shaft also
turns.
When the rotor
blades turn,

15. Basic Processes
B. Converting to Electricity
In this process, the rotational mechanical
energy of the shaft is converted to electricity
by the generator.

16. Credits
Slide # Source
1 http://www.flickr.com/photos/hddod/141018304/
9
http://www.flickr.com/photos/stuartwildlife/3451992116/
http://www.flickr.com/photos/question_everything/4320484939/
http://www.flickr.com/photos/krisgriffon/23263069/
29
http://www.flickr.com/photos/ali_pk/2349831732/30
31
All other illustrations are properties of: WINDTURBINES.NET

17. END