IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v346y2026ics0360544226003129.html

Experimental study of a segmented-buoy wave energy converter integrated with a monopile-based offshore wind turbine

Author

Listed:
  • Li, Yanni
  • Cao, Feifei
  • Yan, Shiqiang
  • Li, Demin
  • Shi, Hongda

Abstract

A novel monopile segmented-buoy combination system (MSCS) integrating a segmented-buoy WEC with a monopile-supported offshore wind turbine (OWT) is experimentally tested in still water (free decay), under regular and irregular waves. This study proposes a viscous correction method that integrates experimental results with theoretical analysis. The hydrodynamic characteristics of the hybrid system under different wave heights are experimentally analyzed to evaluate the fluid viscous effect; free decay tests are further carried out, and the viscous damping coefficient of the MSCS system is quantified by a theoretical analytical model. In addition, a multi-parameter experimental analysis is implemented to reveal the effects of uniform and non-uniform draft configurations, wave parameters, and PTO force. The comparison of draft distribution on system performance improvement is highlighted, and the optimal parameter configuration scheme is preliminarily obtained. The results show that the MSCS exhibits a highly linear characteristic, simplifying the study of the hydrodynamic performance of the MSCS system in sea areas with different wave heights. Compared with the uniform-draft configuration, the non-uniform-draft configuration significantly improves the buoy's motion response but has a limited effect on enhancing energy capture. This study can provide reliable guidance for the sea area layout and system optimization configuration of the MSCS system.

Suggested Citation

  • Li, Yanni & Cao, Feifei & Yan, Shiqiang & Li, Demin & Shi, Hongda, 2026. "Experimental study of a segmented-buoy wave energy converter integrated with a monopile-based offshore wind turbine," Energy, Elsevier, vol. 346(C).
    • Handle: RePEc:eee:energy:v:346:y:2026:i:c:s0360544226003129
    DOI: 10.1016/j.energy.2026.140210
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544226003129
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2026.140210?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Gaspar, José F. & Calvário, Miguel & Kamarlouei, Mojtaba & Guedes Soares, C., 2016. "Power take-off concept for wave energy converters based on oil-hydraulic transformer units," Renewable Energy, Elsevier, vol. 86(C), pages 1232-1246.
    2. Yang, Lisheng & Huang, Jianuo & Mi, Jia & Hajj, Muhammad & Bacelli, Giorgio & Zuo, Lei, 2024. "Control-inspired design and power optimization of an active mechanical motion rectifier based power takeoff for wave energy converters," Renewable Energy, Elsevier, vol. 228(C).
    3. Yi, Yang & Sun, Ke & Liu, Yongqian & Zhang, Jianhua & Zhang, Hui & Zhu, Ronghua & Yao, Hua-Dong, 2026. "Coupled numerical framework for wind-wave-to-wire energy conversion in floating hybrid wind-wave systems," Applied Energy, Elsevier, vol. 403(PB).
    4. Li, Yanni & Yan, Shiqiang & Shi, Hongda & Ma, Qingwei & Li, Demin & Cao, Feifei, 2023. "Hydrodynamic analysis of a novel multi-buoy wind-wave energy system," Renewable Energy, Elsevier, vol. 219(P1).
    5. Li, Xiaofan & Martin, Dillon & Liang, Changwei & Chen, ChienAn & Parker, Robert G. & Zuo, Lei, 2021. "Characterization and verification of a two-body wave energy converter with a novel power take-off," Renewable Energy, Elsevier, vol. 163(C), pages 910-920.
    6. Cao, Feifei & Yu, Mingqi & Han, Meng & Liu, Bing & Wei, Zhiwen & Jiang, Juan & Tian, Huiyuan & Shi, Hongda & Li, Yanni, 2023. "WECs microarray effect on the coupled dynamic response and power performance of a floating combined wind and wave energy system," Renewable Energy, Elsevier, vol. 219(P2).
    7. Jin, Peng & Zheng, Zhi & Zhou, Zhaomin & Zhou, Binzhen & Wang, Lei & Yang, Yang & Liu, Yingyi, 2023. "Optimization and evaluation of a semi-submersible wind turbine and oscillating body wave energy converters hybrid system," Energy, Elsevier, vol. 282(C).
    8. Wan, Ling & Gao, Zhen & Moan, Torgeir & Lugni, Claudio, 2016. "Experimental and numerical comparisons of hydrodynamic responses for a combined wind and wave energy converter concept under operational conditions," Renewable Energy, Elsevier, vol. 93(C), pages 87-100.
    9. Li, Xiaofan & Chen, ChienAn & Li, Qiaofeng & Xu, Lin & Liang, Changwei & Ngo, Khai & Parker, Robert G. & Zuo, Lei, 2020. "A compact mechanical power take-off for wave energy converters: Design, analysis, and test verification," Applied Energy, Elsevier, vol. 278(C).
    10. Son, Daewoong & Belissen, Valentin & Yeung, Ronald W., 2016. "Performance validation and optimization of a dual coaxial-cylinder ocean-wave energy extractor," Renewable Energy, Elsevier, vol. 92(C), pages 192-201.
    11. Xu, Shuaijun & Ji, Baifeng & Xu, Fan & Chen, Changkun, 2024. "Dynamic response and power performance of a combined semi-submersible floating wind turbine and point absorber wave energy converter array," Renewable Energy, Elsevier, vol. 237(PD).
    12. Jin, Siya & Greaves, Deborah, 2021. "Wave energy in the UK: Status review and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    13. Kamarlouei, M. & Gaspar, J.F. & Calvario, M. & Hallak, T.S. & Mendes, M.J.G.C. & Thiebaut, F. & Guedes Soares, C., 2022. "Experimental study of wave energy converter arrays adapted to a semi-submersible wind platform," Renewable Energy, Elsevier, vol. 188(C), pages 145-163.
    14. Xiao, Yi & Ye, Bingxu & Zhang, Hengming & Yuan, Yuming & Zhou, Binzhen & Jin, Peng & Kang, Jichuan, 2025. "Optimization of motion and power performance of a wind-wave hybrid system with built-in wave energy converters," Energy, Elsevier, vol. 339(C).
    15. Jin, Yeqing & Chen, Zichuan & Ren, Guangyan & Zhang, Tianhao & Zhang, Jianbo & Zou, Guoqiang, 2025. "Hydrodynamic performance of a multi-float pendulum wave energy converter coupled with a monopile wind turbine," Energy, Elsevier, vol. 341(C).
    16. Yang, Shaohui & Chen, Xiaokun & Tu, Yongqiang & Du, Zhichang & Li, Haijian & Li, Dexuan & Dong, Weixun & Lin, Jianyu & Zheng, Songgen, 2025. "Experimental study on the wave energy capture performance of a dual-chamber oscillating water column wave energy converter," Energy, Elsevier, vol. 332(C).
    17. Asiikkis, Andreas T. & Grigoriadis, Dimokratis G.E. & Vakis, Antonis I., 2024. "Wave-to-wire modelling and hydraulic PTO optimization of a dense point absorber WEC array," Renewable Energy, Elsevier, vol. 237(PA).
    18. Amini, Erfan & Mehdipour, Hossein & Faraggiana, Emilio & Golbaz, Danial & Mozaffari, Sevda & Bracco, Giovanni & Neshat, Mehdi, 2022. "Optimization of hydraulic power take-off system settings for point absorber wave energy converter," Renewable Energy, Elsevier, vol. 194(C), pages 938-954.
    19. Penalba, Markel & Giorgi, Giussepe & Ringwood, John V., 2017. "Mathematical modelling of wave energy converters: A review of nonlinear approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 1188-1207.
    20. Wei, Zhiwen & Cao, Feifei & Cao, Chunnuan & Han, Zhi & Shi, Hongda & Ji, Tao, 2025. "Experimental study on the effects of an array of concentric wave energy converters on the dynamic of semi-submersible floating wind turbine," Renewable Energy, Elsevier, vol. 242(C).
    21. Neshat, Mehdi & Mirjalili, Seyedali & Sergiienko, Nataliia Y. & Esmaeilzadeh, Soheil & Amini, Erfan & Heydari, Azim & Garcia, Davide Astiaso, 2022. "Layout optimisation of offshore wave energy converters using a novel multi-swarm cooperative algorithm with backtracking strategy: A case study from coasts of Australia," Energy, Elsevier, vol. 239(PE).
    22. Zhou, Binzhen & Hu, Jianjian & Wang, Yu & Jin, Peng & Jing, Fengmei & Ning, Dezhi, 2023. "Coupled dynamic and power generation characteristics of a hybrid system consisting of a semi-submersible wind turbine and an array of heaving wave energy converters," Renewable Energy, Elsevier, vol. 214(C), pages 23-38.
    23. Hu, Jianjian & Zhou, Binzhen & Vogel, Christopher & Liu, Pin & Willden, Richard & Sun, Ke & Zang, Jun & Geng, Jing & Jin, Peng & Cui, Lin & Jiang, Bo & Collu, Maurizio, 2020. "Optimal design and performance analysis of a hybrid system combing a floating wind platform and wave energy converters," Applied Energy, Elsevier, vol. 269(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Yi, Yang & Sun, Ke & Liu, Yongqian & Zhang, Jianhua & Zhang, Hui & Zhu, Ronghua & Yao, Hua-Dong, 2026. "Coupled numerical framework for wind-wave-to-wire energy conversion in floating hybrid wind-wave systems," Applied Energy, Elsevier, vol. 403(PB).
    2. Sergiienko, Nataliia Y. & Xue, Lei & da Silva, Leandro S.P. & Ding, Boyin & Cazzolato, Benjamin S., 2025. "Statistical analysis of floating hybrid wind–wave energy systems," Applied Energy, Elsevier, vol. 401(PB).
    3. Han, Zhi & Wei, Zhiwen & Tao, Ji & Cao, Feifei & Shi, Hongda, 2025. "Experimental study on power matrix and energy capture spectrum of a wind-wave hybrid system under random wave conditions," Energy, Elsevier, vol. 336(C).
    4. Zhang, Chongwei & Li, Donghai & Ding, Zhenyu & Liu, Yingyi & Cao, Feifei & Ning, Dezhi, 2024. "Wave energy converter with multiple degrees of freedom for sustainable repurposing of decommissioned offshore platforms: An experimental study," Applied Energy, Elsevier, vol. 376(PA).
    5. Yi, Yang & Sun, Ke & Liu, Yongqian & Zhang, Jianhua & Jiang, Jin & Liu, Mingyao & Ji, Renwei, 2024. "Experimental investigation into the dynamics and power coupling effects of floating semi-submersible wind turbine combined with point-absorber array and aquaculture cage," Energy, Elsevier, vol. 296(C).
    6. Azam, Ali & Ahmed, Ammar & Yi, Minyi & Zhang, Zutao & Zhang, Zeqiang & Aslam, Touqeer & Mugheri, Shoukat Ali & Abdelrahman, Mansour & Ali, Asif & Qi, Lingfei, 2024. "Wave energy evolution: Knowledge structure, advancements, challenges and future opportunities," Renewable and Sustainable Energy Reviews, Elsevier, vol. 205(C).
    7. Zhu, Kai & Cao, Feifei & Wang, Tianyuan & Tao, Ji & Wei, Zhiwen & Shi, Hongda, 2024. "A comparative investigation into the dynamic performance of multiple wind-wave hybrid systems utilizing a full-process analytical model," Applied Energy, Elsevier, vol. 360(C).
    8. Li, Hai & Shi, Xiaodan & Kong, Weihua & Kong, Lingji & Hu, Yongli & Wu, Xiaoping & Pan, Hongye & Zhang, Zutao & Pan, Yajia & Yan, Jinyue, 2025. "Advanced wave energy conversion technologies for sustainable and smart sea: A comprehensive review," Renewable Energy, Elsevier, vol. 238(C).
    9. Zhu, Kai & Shi, Hongda & Michele, Simone & Han, Meng & Cao, Feifei, 2024. "Analytical study on dynamic performance of a hybrid system in real sea states," Energy, Elsevier, vol. 290(C).
    10. He, Guanghua & Zhao, Chuankai & Liu, Chaogang & He, Runhua & Luan, Zhengxiao, 2024. "Power absorption and dynamic response analysis of a hybrid system with a semi-submersible wind turbine and a Salter's duck wave energy converter array," Energy, Elsevier, vol. 305(C).
    11. Yi Yang & Chenyu Liang & Shi Liu & Jiale Jiang & Zheng Huang & Chonggan Liang & Wenjun Ou & Tao Tao & Mingsheng Chen, 2025. "Frequency and Time Domain Simulations of a 15 MW Floating Wind Turbine Integrating with Multiple Flap-Type WECs," Sustainability, MDPI, vol. 17(6), pages 1-28, March.
    12. Jin, Yeqing & Chen, Zichuan & Ren, Guangyan & Zhang, Tianhao & Zhang, Jianbo & Zou, Guoqiang, 2025. "Hydrodynamic performance of a multi-float pendulum wave energy converter coupled with a monopile wind turbine," Energy, Elsevier, vol. 341(C).
    13. Wang, Tianyuan & Li, Demin & Greaves, Deborah & Hann, Martyn & Zhu, Kai & Li, Yanni & Gong, Haoxiang & Tao, Ji & Cao, Feifei & Shi, Hongda, 2025. "Numerical modelling and PTO damping optimization of an IEA-15-MW-VolturnUS-WEC hybrid system in real sea states," Energy, Elsevier, vol. 330(C).
    14. Gaspar, J.F. & Kamarlouei, M. & Thiebaut, F. & Guedes Soares, C., 2021. "Compensation of a hybrid platform dynamics using wave energy converters in different sea state conditions," Renewable Energy, Elsevier, vol. 177(C), pages 871-883.
    15. Yang, Bo & Li, Miwei & Qin, Risheng & Luo, Enbo & Duan, Jinhang & Liu, Bingqiang & Wang, Yutong & Wang, Jingbo & Jiang, Lin, 2024. "Extracted power optimization of hybrid wind-wave energy converters array layout via enhanced snake optimizer," Energy, Elsevier, vol. 293(C).
    16. Yang, Lisheng & Huang, Jianuo & Spencer, Steven J. & Li, Xiaofan & Mi, Jia & Bacelli, Giorgio & Hajj, Muhammad & Zuo, Lei, 2025. "Electrical power potential of a wave energy converter using an active mechanical motion rectifier based power take-off," Renewable Energy, Elsevier, vol. 252(C).
    17. Xiao, Yi & Ye, Bingxu & Zhang, Hengming & Yuan, Yuming & Zhou, Binzhen & Jin, Peng & Kang, Jichuan, 2025. "Optimization of motion and power performance of a wind-wave hybrid system with built-in wave energy converters," Energy, Elsevier, vol. 339(C).
    18. Li, Yanni & Yan, Shiqiang & Shi, Hongda & Ma, Qingwei & Li, Demin & Cao, Feifei, 2023. "Hydrodynamic analysis of a novel multi-buoy wind-wave energy system," Renewable Energy, Elsevier, vol. 219(P1).
    19. Tao, Ji & Cao, Feifei & Sun, Liang & Zhang, Chongwei & Han, Zhi & Shi, Hongda, 2025. "Design, modeling and optimization of rolling wave energy converter," Energy, Elsevier, vol. 339(C).
    20. Cao, Feifei & Yu, Mingqi & Han, Meng & Liu, Bing & Wei, Zhiwen & Jiang, Juan & Tian, Huiyuan & Shi, Hongda & Li, Yanni, 2023. "WECs microarray effect on the coupled dynamic response and power performance of a floating combined wind and wave energy system," Renewable Energy, Elsevier, vol. 219(P2).

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:346:y:2026:i:c:s0360544226003129. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.