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2. Liberty Wind Turbine - Wikipedia

   en.wikipedia.org/wiki/Liberty_Wind_Turbine

   The rotor diameter varies amongst particular versions of turbines. The diameter for version C89 is 89 meters, 93 meters for version C93, 96 meters for version C96, and 99 meters for C99. Blade lengths are 43.2 m for C89, 45.2 m for C93, 46.7 m for C96 and 48.2 m for C100. Liberty Wind Turbines use 4 generators that have permanent magnets.

3. Wind turbine - Wikipedia

   en.wikipedia.org/wiki/Wind_turbine

   The generator, which is approximately 34% of the wind turbine cost, includes the electrical generator, [63] [64] the control electronics, and most likely a gearbox (e.g., planetary gear box), [65] adjustable-speed drive, or continuously variable transmission [66] component for converting the low-speed incoming rotation to high-speed rotation ...

4. Siemens Gamesa - Wikipedia

   en.wikipedia.org/wiki/Siemens_Gamesa

   Its first wind turbines were machines with rotor diameters of around 10 m (33 ft) with generator powers of 20 to 30 kW (27 to 40 hp). [14] [15] [16] In 1981, the wind activities were separated into newly established company Danregn Vindkraft A/S, established by Peter Stubkjær Sørensen and Egon Kristensen in Brande, Denmark, with a capital of ...

5. List of most powerful wind turbines - Wikipedia

   en.wikipedia.org/wiki/List_of_most_powerful_wind...

   This list also includes the most powerful onshore wind turbines, although they are relatively small compared to the largest offshore ones. As of June 2024, the most powerful wind turbine in operation is the world's first 18MW semi-direct drive offshore wind turbine, developed by Dongfang Electric Corporation. [1] In October 2024, Dongfang ...

6. Doubly fed electric machine - Wikipedia

   en.wikipedia.org/wiki/Doubly_fed_electric_machine

   This is useful for large variable speed wind turbines, because wind speed can change suddenly. When a gust of wind hits a wind turbine, the blades try to speed up, but a synchronous generator is locked to the speed of the power grid and cannot speed up. So large forces are developed in the hub, gearbox, and generator as the power grid pushes back.

7. Wind power in the United States - Wikipedia

   en.wikipedia.org/wiki/Wind_power_in_the_United...

   In 1980, the world's first wind farm, consisting of twenty 30 kW wind turbines was installed at Crotched Mountain, in New Hampshire. [17] Wind power resource at 100-meters above surface level. From 1974 to the mid-1980s, the United States government worked with industry to advance the technology and enable large commercial wind turbines.