ABSTRACT

Bockmann (2015). Also, it has been demonstrated that significant energy can be extracted by the system (see also De Silva & Yamaguchi 2012). In the above cases the hydrofoil is controlled in order to develop positive thrust operating as a wave energy device. An important aspect of the present work is to examine the possibility of energy extraction by oscillating hydrofoils in waves and currents, also by using active pitch control. In this case, the pitching of the foil is appropriately tuned in order to develop heaving forces due to alternating lift and to drive the hydraulic generator. The whole arrangement could be further enhanced by coupling with floaters operating as wave energy converters, supporting also possible hybridisation of the studied arrangement with other renewable energy sources, as e.g. solar panels, and improving the total performance of the combined system.