Siemens has introduced its new SWT-3.3-130 wind turbine, the company's latest addition to its D3 platform. The 3.3 MW machine features a 130-meter rotor diameter and is designed for onshore sites with moderate to low wind speeds.
Siemens says it has injected over five years of pertinent experience gained from its D3 platform into the new SWT-3.3-130. In the new unit, the company says the direct-drive generator includes stronger permanent magnets to further enhance output. Siemens adds that designs of the nacelle bedplate, yaw drive and other components important to unit statics have also been strengthened to accommodate the new 130-meter-long rotor.
The SWT-3.3-130 uses B63 blades measuring 63 meters in length. Siemens says 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. Thanks to its reworked technology and 130-meter rotor, the company says 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%.
The SWT-3.3-130 will be available in early 2017.
