Last year, wind turbine generation accounted for around 9% of power in the United States. Wind turbines continue to provide a more significant portion of domestic energy as companies and customers seek new renewable energy sources.
Have you ever wondered what parts a wind turbine technician must work on? Then, read on to learn what components make up a wind turbine.
Generator (Nacelle)
Generators use electromagnetic induction to create electrical voltage (electrical pressure) that is transferred to the power grid.
You can have a simple generator with a coiled wire known as a conductor and a series of magnets that wrap around the conductor. Voltage is produced when the conductor and magnets begin rotating near one another. The wind is the force that turns the rotary blades.
Voltage drives electrical current through what is known as an alternating current. This step powers lines for the distribution of power. The wind turbine slip ring transfers electrical power from the rotating unit through a stationary part of the turbine.
The “nacelle” is the part considered to be the head of the turbine. The blade assembly attaches to the front of the unit, known as the nacelle. A standard nacelle weighs around 72 tons.
A nacelle typically houses a gearbox assembly, braking system, turbine generator, and electrical power transmission system.
Rotor blades
Rotor blades act as barriers to the wind. When gusts hit the blade, which is typically turned toward the direction of the wind, the wind forces the blades to turn. This activates the generator and transfers the wind into electricity.
Some turbines have built-in systems that automatically adjust the blades’ angle to control the energy output. This can be particularly important for accounting for high wind speeds.
Tower
The height of a tower is a critical component of wind tower design. Wind generally increases with height. Near the ground, the surface of the ground creates friction that slows low-level winds.
This is why wind towers are typically designed to reach heights up to 150 meters tall. Up there, the wind gusts are more powerful even as turbulence rises.
Foundation
The foundation structure bears the dynamic and static loads that are created by the wind turbine. Typically, the foundation is created from a mesh of steel and concrete that roots the generator to the ground for greater stability.
Wind Turbine Parts
Wind turbine technology is both fascinating and essential to our economy. Although the units appear straightforward, many intricate moving parts must be maintained and repaired as needed.
If you operate wind turbines, Kor-Pak manufactures and supplies OEM and aftermarket parts that can meet your needs. To request a quote from one of our team members, leave us a message, and someone will reply promptly.