Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Six-Megawatt Wind Turbine without Gearbox

01.07.2011
A powerful new wind turbine from Siemens should soon be forcing down the cost of this renewable form of energy even further.

The turbine has an output of six megawatts (MW) and low maintenance requirements. Altogether, the nacelle and the rotor blades (with a rotor diameter of 120 meters) weigh less than 350 metric tons.


Moreover, the turbine is fitted with an innovative direct drive and therefore does not require a gearbox. Trials to assess its performance and availability are now being conducted on a prototype installed off the Danish coast. If everything proceeds according to schedule, the SWT-6.0-120 wind turbine should enter series production in 2014.

To date, high-output wind turbines have tended to be disproportionately heavy compared to systems of a lower rating. The SWT-6.0-120, by contrast, weighs only as much as a conventional wind turbine in the 2–3 MW category. What’s more, the use of extremely strong construction techniques has reduced the cost of the turbine itself as well as of the tower and the foundations. This in turn will further lower the cost of power generated by offshore wind turbines.

Experts from Siemens Wind Power in Denmark have developed a wind turbine that is capable of meeting the challenging conditions offshore. For a start, an ingenious but simple design has substantially reduced the number of rotating parts. In addition, the turbine features key technologies that have already proven their worth in the 3.6 MW variant of the turbine. For example, the initial production series of the turbine is to be fitted with B58-type rotor blades. These are manufactured by Siemens using the patented IntegralBlade process, which means they are poured in one cast and do not have any seams or bonded joints. The SWT-6.0-120 is also designed for easy servicing and low maintenance. This includes safer and simple access via a service platform mounted at the rear of the nacelle, to which technicians can be lowered from a helicopter. At the same time, enhanced diagnostic methods reduce the risk of downtime and increase the system’s reliability and therefore its availability. Siemens is to erect further prototypes of the 6 MW turbine in 2011 and carry out comprehensive trials. Moreover, in the course of the pilot production phase, additional turbines are to be installed over the next two years in order to enhance performance and reliability.

To date, Siemens has installed over 600 wind turbines in European waters, with a combined output of 1,800 MW. Wind turbine technology forms part of the Siemens environmental portfolio, which generated around €28 billion in sales for the company in fiscal 2010.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

Further reports about: Gearbox Six-Megawatt Turbine rotor blade wind turbine

More articles from Power and Electrical Engineering:

nachricht Solar-to-fuel system recycles CO2 to make ethanol and ethylene
19.09.2017 | DOE/Lawrence Berkeley National Laboratory

nachricht A simple additive to improve film quality
19.09.2017 | King Abdullah University of Science & Technology (KAUST)

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

Im Focus: Fast, convenient & standardized: New lab innovation for automated tissue engineering & drug

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...

Im Focus: Silencing bacteria

HZI researchers pave the way for new agents that render hospital pathogens mute

Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...

Im Focus: Artificial Enzymes for Hydrogen Conversion

Scientists from the MPI for Chemical Energy Conversion report in the first issue of the new journal JOULE.

Cell Press has just released the first issue of Joule, a new journal dedicated to sustainable energy research. In this issue James Birrell, Olaf Rüdiger,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

New quantum phenomena in graphene superlattices

19.09.2017 | Physics and Astronomy

A simple additive to improve film quality

19.09.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>