DeWind was an internationally active producer of wind power plants, originating in Germany. The company was founded in 1995 as Private Limited Company (GmbH) in Luebeck, Germany by seven shareholders. Five of them actively worked in the company. In 2002 the founders sold 100% of the shares to FKI Plc, Loughborough, UK. Nowadays it is based in

Irving, Texas Irving is a city in the U.S. state of Texas. Located in Dallas County, it is also an inner ring suburb of Dallas. The city of Irving is part of the Dallas–Fort Worth metroplex. According to a 2019 estimate from the United States Census Bureau, ...

, and

Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

. DeWind has the legal form of a

corporation A corporation is an organization—usually a group of people or a company—authorized by the state to act as a single entity (a legal entity recognized by private and public law "born out of statute"; a legal person in legal context) and r ...

, and, since September 2009, it has been a subsidiary company of Daewoo Shipbuilding and Marine Engineering (DSME), a large shipbuilder based in Korea. Manufacturing takes place in Lübeck and Round Rock, Texas. More than 900 DeWind turbines have been erected worldwide, with a total capacity of over 1600 MW. The company was since 2015 in

liquidation Liquidation is the process in accounting by which a company is brought to an end in Canada, United Kingdom, United States, Ireland, Australia, New Zealand, Italy, and many other countries. The assets and property of the company are redistrib ...

and was deleted in the German Trade Register in December 2017.

Turbine types

The first produced wind turbine was the D4 1996, with a capacity of 500 kW (later 600 kW). In 1999, this turbine was followed by the D6 with 1 MW capacity. In 2000, the capacity of this plant was increased to 1.25 MW. After a development period of two years, in 2002 the D8 went into production with a capacity of 2 MW. Already in the mid-1990s, the D4 was produced with active pitch regulation as well as a

doubly fed induction generator Doubly-fed electric machines also slip-ring generators are electric motors or electric generators, where both the field magnet windings and armature windings are separately connected to equipment outside the machine. By feeding adjustable freq ...

. This technology proved itself and, therefore, was implemented in the following models D6 and D8. Especially advantageous are the decoupling of the rotational speed of the turbine rotor and the grid frequency. By using the inertia of the turbine rotor, it reduces mechanical loads on turbine components and prevents peaks in electricity feed-in. The D8.2 has been developed based on the D8 and has been in production since 2006. The plant has been equipped with a hydrodynamic windrive Gearbox. This allows the variation of the rotor speed independent of generator speed. A decoupling of generator rotation speed and grid frequency becomes redundant by this means. The

synchronous generator In an alternating current electric power system, synchronization is the process of matching the frequency of a generator or other source to a running network. An AC generator cannot deliver power to an electrical grid unless it is running at the sam ...

of this turbine is coupled directly with the grid. The system is unique on the wind energy market. According to DeWind, it is advantageous regarding the quality of fed-in electricity as well as regarding behaviour in case of grid failure. Also, patents of the wind turbine producer GE Energy are not violated with this technology. The turbine is offered with 50 Hz as well as 60 Hz design.

Record-holding turbines

The world's highest wind turbine of company DeWind is located in the Andes/Argentina to above sea level. Turbine type D8.2 - 2000 kW / 50 Hz was used for that site. This turbine has a new drive train concept with a special torque converter (WinDrive) of the company Voith and a

. The wind turbine was put into operation in December 2007 and has supplied the Veladero gold mine of

Barrick Gold Barrick Gold Corporation is a mining company that produces gold and copper with 16 operating sites in 13 countries. It is headquartered in Toronto, Ontario, Canada. It has mining operations in Argentina, Canada, Chile, Côte d'Ivoire, Democrati ...

with electricity since then.

References

External links

www.dewindco.com
- DeWind Inc. * showing construction of a DeWind turbine for Texas State Technical College in

Sweetwater, Texas Sweetwater is a municipality in and the seat of Nolan County, Texas, United States. It is 123 miles southeast of Lubbock and 40 miles west of Abilene, Texas. Its population was 10,906 at the 2010 census. History The town's name "Sweetwater" is t ...

{{DEFAULTSORT:Dewind Engineering companies of Germany Defunct wind turbine manufacturers Manufacturing companies based in Hamburg Manufacturing companies based in Texas German companies established in 1995 Manufacturing companies established in 1995 German companies disestablished in 2006

Turbine types

Record-holding turbines

See also

References

External links