Energy Encyclopedia

Wind

Wind Turbine

A machine that converts wind into electricity, usually a three-bladed horizontal-axis turbine.

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Labelled system

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Original ENERGY ATLAS diagram of Wind Turbine

Original ENERGY ATLAS schematic. Interactive 3D is opt-in on this page.

Blades and hub.

Overview

Utility turbines place a large rotor on a tubular tower. Pitch control regulates power. Yaw keeps the rotor into the wind. Direct-drive and geared drivetrains both exist.

How it works

Lift on aerofoil blades produces torque. A generator, often with power electronics, feeds the collector system of a farm.

Components

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