In the paper the current design status of the 5 MW DeepWind concept is presented. The intended siting for the turbine is off the Norwegian west coast at about 250 m of sea depth. Focus is set on the integrated design highlighting structural benefits of the light rotor, the hydrodynamic aspects of the floating hull, and new generator design embracing magnetic bearings.
Two important design tools were developed which allow the industry to analyze various VAWT(vertical Axis Wind Turbine) variants for offshore applications: a main design tool “HAWC2” for aeroelastic design of VAWTs, and a generator design tool “NESSI”. HAWC2 has been adopted for VAWT rotors by DTU Wind Energy in the project and is explained on its technical capability to embrace integrated modeling of the different physical aspects. NESSI, developed at AAU (Aalborg University) is presented with focus on key elements in generator design.
The paper presents new developments in the current design of a novel rotor shape with overspeed control. Rotor performance, design structural key figures and upscaling potential are reported. New results implemented on permanent magnets generator and - bearing technology show, that it is possible to achieve a competitive design ready for further industrial optimization. A preliminary analysis is provided on the emergency philosophy for this concept.
|Title of host publication||Proceedings - EWEA 2014|
|Number of pages||11|
|Publisher||European Wind Energy Association (EWEA)|
|Publication status||Published - 2014|
|Event||European Wind Energy Conference & Exhibition 2014 - Fira de Barcelona Gran Via, Barcelona, Spain|
Duration: 10 Mar 2014 → 13 Mar 2014
|Conference||European Wind Energy Conference & Exhibition 2014|
|Location||Fira de Barcelona Gran Via|
|Period||10/03/2014 → 13/03/2014|
- Vertical–axis wind turbine
- Offshore floating platform
- Structural Optimization
- Permanent magnet generator
- Magnetic bearings