Wind Power Generation

A wind turbine is a power-generating device that converts wind energy into mechanical energy, which drives the rotor to rotate and ultimately outputs alternating current (AC) electricity. A typical wind turbine consists of a wind rotor, generator (including auxiliary devices), yaw system (tail vane), tower, overspeed and safety devices, and energy storage system.

A wind farm is a cluster of multiple large grid-connected wind turbines installed in areas with abundant wind resources. The turbines are arranged in arrays according to terrain and prevailing wind directions to supply power to the grid. Adequate spacing between turbines is essential to prevent excessive turbulence and the “wake effect,” which can significantly reduce the power output of downstream turbines. Roads must be constructed to transport large components, especially blades, to the installation site. Transmission lines are also required to connect the wind farm output to the grid connection point.

Components of a Wind Farm include:

• Wind turbine cluster

• Collection system

• Step-up substation (onshore may require multiple stages of step-up; offshore may have a central control center)

• Step-up transformers and reactive power compensation devices (capacitors, reactors, static VAR compensators, filters)

Site Requirements for Wind Farms:

• Rich wind resources: Annual average wind speed above 5 m/s, effective wind hours at 30m height above 6,000 hours/year, and effective wind power density above 240 W/m² are suitable for large-scale wind farm construction. Factors affecting wind energy quality include average wind speed, average wind power density, wind frequency distribution, effective wind hours, and wind direction stability.

• Low risk of natural disasters: Strong winds, hail, thunderstorms, earthquakes, and other hazards can impact turbine operation and safety.

About Juyi Electric
Juyi Electric is committed to being a comprehensive solution provider in the renewable energy sector. The team includes over 50 professional engineers who have been responsible for the operation and maintenance of more than 200 wind turbines. The company provides solutions covering the entire lifecycle of wind farm construction and operation.