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 Dallas County, Texas, United States. It is part of the Mid-Cities region of the Dallas–Fort Worth metroplex and is an Inner suburb, inner city suburb of Dallas. Irving is noted for its #Demographics, racial and ethnic diver ...

, and

Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germany by population, second-largest city in Germany after Berlin and List of cities in the European Union by population within city limits, 7th-lar ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

. DeWind has the legal form of a

corporation A corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the State (polity), state to act as a single entity (a legal entity recognized by private and public law as ...

, 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 Round Rock is a city in Williamson and Travis County, Texas, United States, part of the Greater Austin metropolitan area. Its population is 119,468 according to the 2020 census. The city straddles the Balcones Escarpment, Texas State Histor ...

. 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 (law), company is brought to an end. The assets and property of the business are redistributed. When a firm has been liquidated, it is sometimes referred to as :wikt:wind up#Noun, w ...

and was deleted in the

German Trade Register A German Commercial Register (, ) is a public company register that contains details of all tradespeople and legal entities in the district of the registrar, which is generally the Amtsgericht (local district court) of the place where the '' Landge ...

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, Doubly fed induction generator (DFIG), or 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 ...

. 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 An alternator (or synchronous generator) is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with ...

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

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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 The Voith Group is a global technology company. With its broad portfolio of systems, products, services and digital applications, Voith trades in the markets of energy, paper, raw materials and transport. Founded in 1867, Voith today has aroun ...

and a

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

Barrick Gold Barrick Mining Corporation is a mining company that produces gold and copper. It has mining operations and projects in Argentina, Canada, Chile, Côte d'Ivoire, Democratic Republic of the Congo, Dominican Republic, Ecuador, Egypt, Mali, Pakista ...

with electricity since then.

References

External links

www.dewindco.com
- DeWind Inc. * showing construction of a DeWind turbine for

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{{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