2017222 · Direct drive wind turbines are becoming more attractive for off- and onshore applications, since maintenance and downtime costs resulting from gearbox
20181022 · the industry with direct-drive turbines becoming increasingly popular. In this work we develop an onshore direct-drive version of the geared 5MW reference wind
By building on our direct drive technology, which uses fewer moving parts than geared machines, the robust SG 8.0-167 DD enables superior performance for added benefit. Utilizing existing elements of our production model creates key advantages. We standardize processes by leveraging our fully developed supply chain while re-using both current
A direct drive wind turbine converts rotor rotation to electrical power directly, without the use of a gear box. Traditional wind turbines use gearboxes to step up the rotational speed (about 100x) from the rotor to the generator,
The powerful 11 MW offshore turbine offers both a high energy yield and unmatched reliability. By increasing the rotor diameter to 200 meters with 97 meter-long blades, the SG 11.0-200 DD delivers up to 40% more AEP than its predecessor, the SG 8.0-167 DD. With every new generation of our offshore direct drive turbine technology – which uses
2023715 · Direct-drive wind turbines have been implemented in offshore wind developments contributing to a wide range of advantages, such as overall mass
2024113 · Direct drive refers to a type of wind turbine design that eliminates the gears in a conventional wind turbine. In a conventional, gear-driven turbine, the rotor blades spin a shaft which drives gears that drive
2021624 · addition to supporting the turbine rotor, some direct-drive congurations require the main bearing to also support the generator rotor while maintaining an
202047 · Direct-drive technology is the basis for direct-drive wind turbines; as Shown in the image below, the synchronous generator is directly powered by the rotor. A direct
By eliminating a failure-prone gearbox, permanent magnet direct-drive (PMDD) technology requires fewer components with only one moving part in the drivetrain, further reducing the lifetime maintenance costs of the turbine. The end result is less downtime, meaning an overall increase in turbine availability and increased energy production.
The S2 used a direct-drive steam turbine provided by the Westinghouse Electric & Manufacturing Company, geared to the center pair of axles with the outer two axles connected by side rods; the fixed gear ratio was 18.5:1. Such design was to prevent energy loss and S2 achieved a mechanical efficiency of 97% which means only 3% of steam
2022221 · This paper presents the state-of-the-art technologies and development trends of wind turbine drivetrains – the system that converts kinetic energy of the wind to
2020218 · This paper studies the battle between two types of wind turbines, the gearbox wind turbine and the direct drive wind turbine.
2009123 · The most important functional aspect of this "Proof of concept" test trial was exchanging the gearbox and generator of a conventionally geared 3.6-MW SWT-3.6-107 with a direct-drive generator. The concept turbine drive system also includes a rotating main shaft supported by two bearings, whereby the upwind rotor is located in front and
2020519 · Siemens Gamesa''s new SG 14-222 DD offshore Direct Drive wind turbine now sees the light of day as a part of the solution. With an unprecedented 14-megawatt (MW) capacity - reaching up to 15 MW using the company''s Power Boost function, a 222-meter diameter rotor, 108-meter long blades, and an astounding 39,000 m2 swept area,
20181022 · the industry with direct-drive turbines becoming increasingly popular. In this work we develop an onshore direct-drive version of the geared 5MW reference wind turbine by NREL. The presented direct-drive model is a fully consistent conversion of the geared design, intended to analyse the differences in structural loads between the two
201973 · Having all of those moving parts makes the gearbox one of the highest-maintenance parts of a wind turbine. One alternative is to use a "direct drive" generator
3 · A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades, which work like an airplane wing or helicopter rotor blade. When wind flows across the blade, the air
2016928 · Siemens'' low-wind-speed turbine (SWT-3.15-142) is the first Siemens direct-drive wind turbine dedicated to IEC Class III operation. Its B69 rotor blades are based on hybrid-carbon technology