Wind Turbine yields high energy at low-wind sites.
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Press Release Summary:
Delivering 3.3 MW, SWT-3.3-130 has 130 m dia rotor and optimizes energy extraction in low- to moderate-wind velocities. Direct-drive PMG generator operates with permanent magnets to enhance output, servo motors ensure precise rotation of nacelle, and hydraulic cylinders in rotor hub enable exact adjustment of rotor blade angle. Under turbulent wind conditions, ends of B63 aeroelastically tailored blades cushion and absorb wind pressure to limit static loading of nacelle and tower.
Original Press Release:
New Siemens D3 Wind Turbine for High Energy Yields at Low Wind Sites
•Â Â Â Trade fair premiere for Siemens' new Model SWT-3.3-130 wind turbine
•Â Â Â New generation of proven direct-drive D3 product platform
•Â Â Â Generator, rotor hub, nacelle, yaw drive and cooling system reworked
A growing number of onshore wind farms in Germany and throughout Europe are being sited in regions with moderate to low wind speeds. Siemens Energy is responding to this trend with its new Model SWT-3.3-130 wind turbine. Delivering 3.3 megawatts of electric power, this wind power unit extracts the maximum energy yield from low to moderate wind velocities, thereby rounding off Siemens wind power portfolio as an innovative and extremely efficient wind turbine for sites with low wind speeds. With its rotor measuring 130 meters in diameter, this giant unit will be available in early 2017.
Siemens Wind Power has injected over five years of pertinent experience gained from its D3 platform into the new SWT-3.3-130. This has enabled engineers to fundamentally rework the core components: In the new unit, the direct-drive PMG generator operates with even stronger permanent magnets to further enhance output. The designs of the nacelle bedplate, yaw drive and other components important to unit statics have been strengthened to accommodate the new 130-meter-long rotor.
While new servo-motors ensure precise rotation of the nacelle even at high wind pressures, particularly strong hydraulic cylinders in the newly designed rotor hub enable exact adjustment of rotor blade angle. The SWT-3.3-130 uses B63 blades measuring 63 meters in length. These aeroelastically tailored blades limit the static loading of the nacelle and tower, particularly under turbulent wind conditions, as the blade ends act to cushion and absorb high wind pressure. Further innovations featured in the SWT-3.3-130 include a newly designed cooling system that has now been integrated into the nacelle and ensures optimum cooling of the generator and other electrical components. Thanks to its reworked technology and 130-meter rotor, this new unit exceeds the annual energy yield of the previous D3-series wind turbine (SWT-3.0-113 / SWT-3.2-113) by approximately 17 to 20 percent.
“In our new Model SWT-3.3-130 wind turbine we have once again maximized the performance reserves which Siemens’ D3 platform offers with its direct-drive PMG generator,” explains Morten Pilgaard Rasmussen, Head of Research & Development at Siemens Wind Power. “We are proud to be able to offer a highly attractive solution for sites with low wind speeds which will set whole new standards for economic efficiency, energy yield and reliability."
Wind power and the associated service activities are part of Siemens’ Environmental Portfolio. Around 43 percent of the company's revenues are generated by green products and solutions. That makes Siemens one of the world’s leading providers of eco-friendly technology.
This press release and a press picture can be found at: http://www.siemens.com/press/pi/EWP201409073e
For further information on WindEnergy 2014 in Hamburg, please see:
http://www.siemens.com/press/WindEnergy2014
Contact for journalists:
Bernd Eilitz, phone: +49 40 2889-8842
E-Mail: bernd.eilitz@siemens.com
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The Siemens Energy Sector is the world’s leading supplier of a broad spectrum of products, services and solutions for power generation in thermal power plants and using renewables, power transmission in grids and for the extraction, processing and transport of oil and gas. In fiscal 2013 (ended September 30), the Energy Sector had revenues of EUR26.6 billion and received new orders totaling approximately EUR28.8 billion and posted a profit of approximately EUR2 billion. On September 30, 2013, the Energy Sector had a work force of approximately 83,500. Further information is available at: www.siemens.com/energy.
Siemens AG
Wittelsbacherplatz 2, 80333 Munich, Germany
Communications and Government Affairs
Head: Stephan HeimbachÂ
Energy Sector
Wind Power Division
Lindenplatz 2, 20099 Hamburg, Germany
