Offshore-floating Airborne Wind Energy converters are introduced.
Coupled dynamics of floating structures and airborne systems can be modelled.
The effect of wave induced motions on the performance can be relevant.
A small portion of wave energy can be harvested by airborne wind energy systems.
Airborne Wind Energy Converters (AWECs) are promising devices that, thanks to tethered airborne systems, are able to harvest energy of winds blowing at an altitude which is not reachable by traditional wind turbines. This paper is meant to provide an analysis and a preliminary evaluation of an AWEC installed on a floating offshore platform. A minimum complexity dynamic model is developed including a moored heaving platform coupled with the dynamics of an AWEC in steady crosswind flight. A numerical case study is presented through the analysis of different geometrical sizes for the platform and for the airborne components. The results show that offshore AWECs are theoretically viable and they may also be more efficient than grounded devices by taking advantage of a small amount of additionally harvested power from ocean waves.
- Wave energy;
- High altitude wind;
- Offshore renewable;
- Offshore platform
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