The parametric design of a resonant point absorber, equipped with a fully submerged toroidal shape and connected to a permanent magnet linear generator lying on the seabed, is performed to investigate the effectiveness of the new WEC device in terms of power production and cost of energy. After developing a non-linear time-domain model for the heave, surge and pitch motions of the floating buoy and the vertical motion of the Power Take-Off translator mass, a comparative analysis is performed among a reference WEC device and the new layout. The Annualised Energy Production of the WEC devices is assessed with reference to a candidate deployment site located in the western Mediterranean Sea. The scantling of the tensioned line, connecting the floating buoy to the Power Take-Off unit, is carried out based on both Ultimate and Fatigue Limit State design conditions. Subsequently, the Levelised Cost of Energy is determined and a sensitivity analysis is performed to detect a possible pathway to further reduce the power production costs. Based on current results, the new WEC device seems to be a promising layout to gain the EU target for the marine renewable energy sector that should be reached by 2025.

进行谐振点吸收器的参数化设计，该吸收器具有完全浸没的环形形状并连接到位于海床上的永磁线性发电机，以研究这种新型WEC设备在发电量和能源成本方面的有效性。在为浮标的升沉，喘振和俯仰运动以及取力器平移质量的垂直运动建立了非线性时域模型后，在参考WEC设备和新布局之间进行了比较分析。参考位于地中海西部的候选部署站点评估WEC设备的年度能源生产。张紧线的尺寸，将浮标连接到动力输出装置，根据极限和疲劳极限状态设计条件进行。随后，确定能源的平准化成本，并进行敏感性分析以检测可能的途径，以进一步降低电力生产成本。根据目前的结果，新的WEC设备似乎是实现2025年应达到的欧盟海洋可再生能源领域目标的有希望的布局。