Engineering

How to test biggest wind turbine (Photo Gallery)

It is the largest wind turbine in the world, the generator, which is used by most storms on a test stand in Bremerhaven. So far, Siemens holds the world record with a 7-MW plant. Now, the French Spanish company Adwen with 8 MW power builds an even greater investment. 

Siemens reacted immediately: an 8-MW plant is now also at Siemens in the development.

The world’s largest, with output of 8 MW wind generator is built in Bremerhaven by Adwen. The powerful generator is powered by the largest wind turbine in the world in the future. It will do a rotor diameter of 180 meters. Each of the three petals is 88.4 meters long.

LM Wind Power
LM Wind Power

Thus, Adwen overhauled the Siemens group, whose largest wind generator comes on 7 MW and a rotor diameter of 154 m. Also the Siemens facility is still in the development stage. It is being tested in Denmark and is to go into series production in 2017. The energy company Dong Energy wants to use the Siemens rotors in a large wind farm in the North Sea.

Foto: LM Wind Power
Foto: LM Wind Power

The world’s largest, with output of 8 MW wind generator is built in Bremerhaven by Adwen. The powerful generator is powered by the largest wind turbine in the world in the future. It will achieve a rotor diameter of 180 meters.

Each of the three petals is 88.4 meters long

Thus, Adwen overhauled the Siemens group, whose largest wind generator comes on 7 MW and a rotor diameter of 154 m. Also the Siemens facility is still in the development stage. It is currently being tested in Denmark and is to go into series production in 2017. The energy company Dong Energy wants to use the Siemens rotors in a large wind farm in the North Sea.

Foto: LM Wind Power
Foto: LM Wind Power

Until then, the road is still long. “If to build the largest wind power plant of the world, almost everything that one does, an unprecedented challenge is”, says Luis Álvarez, General Adwen Manager. To avoid surprises, all components be tested ashore. The tests run on the dynamic nacelle testing laboratory (Dynalab) in Bremerhaven, which operates the Fraunhofer Institute for wind energy and energy system technology (FhG-IWES) headquartered in Kassel.

The focus of the test series, the transmission is

In particular the transmission will be carefully examined. It is exposed huge change forces that occur especially in gusty winds. The most extreme weather conditions are simulated on the test stand, and at full performance.

Foto: LM Wind Power
Foto: LM Wind Power

350 sensors give information about the well-being of the gearbox, excessive burdens and deficiencies in the lubrication of the moving parts. So, fine adjustment is possible. Subsequent testing on the finished mill in everyday use can be reduced so drastically. The Fraunhofer test stand, which cost 35 million euros, went into the October 2015 in operation.

RePower was Adwen

Adwen is a joint venture of the French energy Group AREVA which builds mainly nuclear power plants, and the Spanish wind generator manufacturer Gamesa. Both companies each hold 50 percent in Adwen. At Gamesa, Siemens has participated with 59 percent. Together, Gamesa and the Siemens wind Division are the largest wind energy equipment manufacturer in the world.

Foto: LM Wind Power
Foto: LM Wind Power

Adwen is specialized to develop wind farms on the high seas and to build. What happens now with Adwen, is still open. AREVA could sell his Adwen shares to Siemens and Gamesa. But a sale to other interested parties is possible. General Electric should have declared interest.