Performance Analysis of Different Layouts of 3-Dof Wecs Around an Offshore Platform

Over the past few decades, the exploitation and utilization of wave energy have attracted increasing interest, and scholars from various countries have gradually focused on analyzing the composition of multiple wave energy converts arrays to utilize wave energy in an efficient, stable and sustainable manner. This paper proposes a new layout method of 3-DoF WECs (3-Degree-of-Freedom Wave Energy Converts) with an offshore platform, and establishes the frequency domain model of 3-DoF WECs, and then expresses the interaction effect between two WECs with distance in polar coordinates, based on which the performance of 3-DoF WEC arrays with different center platform shapes, platform diameters, WEC distances, and incident wave directions is analyzed, revealing the influence law of WEC distances and center platform parameters on the performance of 3-DoF WEC arrays. The results show that the central platform will greatly improve the performance of the WEC array, and that the WEC distance and platform diameter are important factors affecting the performance of the WEC array, and that the performance of the WEC array with the optimal layout is 31% higher than that of an isolated WEC