Complete description is present...........

2. Name Muhammad Umer
Roll number 15103122-017
Topic Wind turbine drive train

3.  A wind turbine is a device
that converts the wind's kinetic
energy Into electrical power.
 The smallest turbines are used for
applications such as battery charging.
 Slightly larger turbines can be used for
making contributions to a domestic power
supply.

4. Components
 Rotor and Fan
 Gear box
 Break unit
 Generator
 Step up transformer
 Velocity sensor

5. Rotor…
 This is the main part of a modern wind
turbine design that collects the winds
energy and transforms it into mechanical
power in the form of rotation. The rotor
consists of two or more laminated-wood,
fiberglass or metal “rotor blades” and a
protective hub which rotates around a
central axis.

6. Fan blades
 Curved blades are very similar to a
long aero plane wing which has a
curved surface on top. The curved
blade has air flowing around it with
the air moving over the curved of
the blade and therefore, as a result
create movement.

7. Fan blades:

8. Gear box…
 A gearbox is typically used in a wind turbine to increase
rotational speed from a low-speed rotor to a higher speed
electrical generator. A common ratio is about 90:1, with a
rate 16.7 rpm input from the rotor to 1,500 rpm output for
the generator. The design of a wind turbine gearbox is
challenging due to the loading and environmental
conditions in which the gearbox must operate.

9. Gear box….

10. Cont…..
 Torque from the rotor generates power, but the
turbine rotor also applies large moments and
forces to the wind-turbine drivetrain. It is important
to ensure that the drivetrain effectively isolates the
gearbox, or to ensure that the gearbox is
designed to support these loads, otherwise
internal gearbox components can become
severely misaligned. This can lead to stress
concentrations and failures.

11. Cont…

12. Brake unit…..

13. Step up tranformer…
 Typically, each wind turbine is connected to a
step-up transformer which boosts the
generating output of the turbine
generator. Grounding transformers are
located at critical points throughout the wind
farm to provide a neutral point for grounding
purposes. From there, all the power is then
interconnected to a collector step-up
transformer located in a substation where it is
transported to the electricity grid.

14. Velocity Sensor….