| Large-scale offshore Floating Photovoltaic (FPV) power station consisting of multiple modules exhibit six-degree-of-freedom motions under the combined action of wind, waves, and currents, posing a risk of inter-module collisions. Consequently, investigating the hydrodynamic responses of such FPV systems under wind, wave, and current loads holds considerable significance for engineering practice. This study centers on an offshore FPV system comprising six modules linked by anchor chains. A multi-module coupled hydrodynamic analysis model is developed, and based on the consideration of various wave directions, the amplitude-frequency responses and timedomain motion responses of the system are calculated and analyzed. Consequently, the hydrodynamic motion characteristics of each module and the mooring line tensions under different wave directions are derived. Two distinct mooring configurations are analyzed numerically, and their hydrodynamic responses are compared to further optimize the mooring scheme, thereby effectively reducing the construction cost of the FPV system. The results indicate that the tensions of internal mooring lines within the system are significantly lower than those of the outer-edge mooring lines, and the latter serve as the dominant factor in constraining the motion of the multi-module system. This work offers valuable guidance for the research, development, and design of FPV power station. |
