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 Nano-scale process may speed arrival of cheaper hi-tech products
09.11.2018 | University of Edinburgh

nachricht Nuclear fusion: wrestling with burning questions on the control of 'burning plasmas'
25.10.2018 | Lehigh University

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: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Epoxy compound gets a graphene bump

14.11.2018 | Materials Sciences

Microgel powder fights infection and helps wounds heal

14.11.2018 | Health and Medicine

How algae and carbon fibers could sustainably reduce the athmospheric carbon dioxide concentration

14.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>