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Hydrodynamic characteristics of a wave energy converter array-offshore aquaculture cage group hybrid system

文献类型： 外文期刊

作者： Cheng, Yong 1 ; Hu, Yinong 2 ; Yu, Deshuang 1 ; Dai, Saishuai 3 ; Yuan, Zhiming 3 ; Incecik, Atilla 3 ; Wang, Gang 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Fishery Engn Res Inst, Beijing 100141, Peoples R China

2.Jiangsu Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Zhenjiang 212003, Peoples R China

3.Univ Strathclyde, Naval Architecture Ocean & Marine Engn Dept, Glasgow City, Scotland

关键词： Wave energy converters; Offshore aquaculture cage group; Hybrid system; Wave energy conversion; Mooring tension; Marine ranching

期刊名称：ENERGY （ 影响因子：9.4； 五年影响因子：8.8 ）

ISSN： 0360-5442

年卷期： 2025 年 328 卷

页码：

收录情况： SCI

摘要： Integrating an array of wave energy converters (WECs) with offshore aquaculture cages offers a sustainable solution for meeting daily energy demands while enabling the sharing of mooring systems. This paper investigates this unanswered question by numerically simulating a hybrid system composed of an array pointabsorber WECs and a moored aquaculture cage group. The multi-body and multi-coupling interaction among WECs, mooring chains, cage nets, floating collars and cage sinkers are investigated. The results reveal that, across all simulated wave periods, rear-positioned WECs exhibit higher wave energy conversion efficiency than frontfacing units, primarily due to the reduced constraints imposed by the mooring chains. Compared with taut mooring, the catenary mooring configuration increases wave energy conversion by 50 % in long-period waves and reduces facing-wave mooring tension by 13 %. Under identical physical parameters, square and in-line cage configurations demonstrate superior wave energy conversion performance, whereas front-back arrays induce greater mooring tension. PTO units partially offset the mooring tension, so the optimal PTO damping for WECs in the hybrid system is higher than for isolated WECs and increases along with wave propagation. These findings offer valuable insights for the engineering implementation of renewable energy-offshore aquaculture hybrid techniques in the development of marine ranching.

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