Abstract

Modeling and system optimization of a bottom-hinged flap-type wave energy converter were carried out in the present paper. Hydrodynamic analysis was conducted by taking the nonlinear viscous damping into account and moreover, the effect of water ballast and external power take-off damping variables on the power capture and conversion efficiency was investigated. It is noted that the added moment of inertial is much larger than the intrinsic inertia for a bottom-hinged flap-type wave energy converter, and the influence of the ballast control on the flap is less important, while the effect of power take-off damping is satisfactory.

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