Wave energy converter dimensioning constrained by location, power take-off and control strategy

The paper analyses the performance of a wave energy converter (WEC) employing a direct-drive linear switched-reluctance machine, providing a detailed method for optimal dimensioning of a WEC. The method derives the dimensions of a particular point absorber to reach objectives such as the maximization of energy extracted, or the minimization of volume. The characteristics of a particular location, the chosen power take-off (PTO) and the control strategy chosen define the restrictions of an optimization problem whose solutions are the dimensions of the most suitable WEC. The given generator parameters (maximum stroke, velocity and force) determine an optimal WEC design. Laboratory testing of the generator will validate the force and calculate efficiency, to be used as inputs for the optimization process. Aside from the preliminary WEC dimensions design, this method can be used for an energetic analysis of a particular PTO on various locations.