Abstract:
Objective With the intensification of global climate change and the depletion of oil and gas resources, large offshore converter stations have gradually been widely applied. To achieve a technically feasible, economically affordable, and operationally sustainable DC transmission solution in deep-sea wind power development, this paper designs a novel offshore floating converter station.
Method A hydrodynamic model was established based on HydroD software, and combined with SIMA software for time-domain numerical simulation of the converter station's offshore platform, the study systematically analyzed the motion and load characteristics of the converter station under different wave conditions.
Result The results indicate that there are certain response peaks in the low-frequency range, while the responses rapidly decay in the high-frequency range, demonstrating good low-pass filtering characteristics. Under irregular waves ranging from operational conditions to once-in-a-century extreme survival conditions, the floating converter platform exhibits excellent overall wave-resistance performance. At the same time, the existing three-segment catenary mooring design can effectively restrict platform displacement and withstand environmental loads.
Conclusion The study verifies the excellent wave-resistance performance and mooring safety of the floating offshore converter platform under design sea conditions, providing detailed and reliable data support and technical basis for subsequent engineering design optimization, offshore installation, and operational strategy development.
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