A pilot scheme has been built [95] which includes a permanent magnet linear generator. Performance data of both the AWS and the linear generator may hence be used to evaluate the characteristics of either of the electrical machine topologies proposed in this thesis. The pilot device has a rated stroke length of 7 m and a maximum of 9 m for the 9 m diameter floater. Figure 8.1 shows the prototype device as it is prepared for deployment.

Figure 8.1: AWS during a (failed) attempt at launching

The large forces a vessel of this size can exert, in combination with the generally low shear stress of electric machines, have led the designers to place water dampers in parallel with the linear generator. These are intended to provide additional thrust during periods of high force, allowing both overload protection for the generator and also decoupling the relationship between device size and required power take off.

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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