Investigation of coupled motion and power generation characteristics in a star-CCM-based floating wind-wave-current power generation platform

This study introduces a Floating Wind Wave Current-Power Generation Platform (FWWC-PGP) designed to integrate wind, wave, and tidal energies for electricity production. Through simulations using Star-CCM software, the research examines the platform's coupled motion responses and power generation characteristics under varying wind, wave, and current conditions, specifically analyzing the interactions between the wind turbine, wave energy floaters, and water turbines. The findings indicate that wave periods and the loading on the water turbines significantly influence the platform's motion, whereas the thrust generated by the wind turbines has a comparatively minor effect. Across all operating conditions, wind turbines are the primary source of power generation, with water turbines and moonpool-type floaters contributing comparatively less. At lower wind speeds, the wave energy devices of the moonpool-type floaters deliver substantial power supplementation, while the water turbines ensure stable electricity generation, thereby enhancing the system's adaptability to environmental variations. This study offers innovative approaches to enhancing the utilization efficiency of marine natural resources and holds significant practical implications for the development and exploitation of marine renewable energy.