An Integrated Tuned Hydro-PTO Semi-Submersible Platform for Deep-Sea Wind-Wave Cogeneration: Design, Hydrodynamic Analysis

Guohua Wang (), Haolin Yang, Fangyuan Zhou, Yuhang Shen, Zhirui Zhang, Hailong Jiang, Runnan Liu, Jiaxin Liu and Yi Zhang
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Guohua Wang: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Haolin Yang: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Fangyuan Zhou: Daqing Drilling Engineering Co., Ltd., CNPC, Daqing 163458, China
Yuhang Shen: Bohai Drilling Third Drilling Company of China Petroleum Group, CNPC, Tianjin 300280, China
Zhirui Zhang: Daqing Drilling Engineering Co., Ltd., CNPC, Daqing 163458, China
Hailong Jiang: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Runnan Liu: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Jiaxin Liu: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Yi Zhang: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China

Energies, 2025, vol. 18, issue 21, 1-24

Abstract: The ocean offers abundant wind and wave energy resources. This paper proposes an integrated concept that co-locates a semi-submersible floating wind platform with wave energy converters (WECs) to exploit the geographical consistency of these resources. By sharing the platform foundation and power transmission infrastructure, this integrated system enhances the utilization efficiency of marine space and renewable energy. Inspired by the principles of the Tuned Mass Damper (TMD) and leveraging mature hydraulic technologies from wave energy conversion and offshore drilling heave compensation systems, this study introduces a novel scheme. This scheme integrates a heave plate with a hydraulic Power Take-Off (PTO) system, functionally acting as a wave energy converter, to the floating platform. The primary objective is to mitigate the platform’s motion response while simultaneously generating electricity. The research investigates the motion performance improvement of this integrated platform under South China Sea conditions. The results demonstrate that the proposed WEC–PTO system not only improves the platform’s wave resistance and adaptability to deep-sea environments but also increases the overall efficiency of marine energy equipment deployment.

Keywords: semi-submersible platform; heave plate; PTO system; Tuned Mass Damper (TMD); wind-wave cogeneration; hydrodynamic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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