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A parameter study and optimization of two body wave energy converters

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  • Al Shami, Elie
  • Wang, Xu
  • Zhang, Ran
  • Zuo, Lei

Abstract

This paper studies the multidisciplinary nature of two body wave energy converters by a parametric study based on the Taguchi method which helps to understand the effect of different dependent parameters on the wave energy conversion performance. Seven different parameters are analyzed and their effect on the maximum captured power, resonance frequency and bandwidth is studied. An interesting comparison between a cylindrical submerged body and a spherical one was made in terms of the system's viscous damping and hydrodynamics. The best system parameter combinations based on the maximum output power, best resonant frequency and frequency bandwidth were identified from the outcomes of the Taguchi method and optimized to capture the maximum power to operate in the specific (Australian) sea regions where the waves' frequencies are relatively low. This paper should provide a guideline for designers to tune their parameters based on the desired performance and sea state.

Suggested Citation

  • Al Shami, Elie & Wang, Xu & Zhang, Ran & Zuo, Lei, 2019. "A parameter study and optimization of two body wave energy converters," Renewable Energy, Elsevier, vol. 131(C), pages 1-13.
    • Handle: RePEc:eee:renene:v:131:y:2019:i:c:p:1-13
    DOI: 10.1016/j.renene.2018.06.117
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    1. 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.
    2. Silvia Bozzi & Adrià Moreno Miquel & Alessandro Antonini & Giuseppe Passoni & Renata Archetti, 2013. "Modeling of a Point Absorber for Energy Conversion in Italian Seas," Energies, MDPI, vol. 6(6), pages 1-19, June.
    3. Liang, Changwei & Zuo, Lei, 2017. "On the dynamics and design of a two-body wave energy converter," Renewable Energy, Elsevier, vol. 101(C), pages 265-274.
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    Cited by:

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    5. Li, Demin & Sharma, Sanjay & Borthwick, Alistair G.L. & Huang, Heao & Dong, Xiaochen & Li, Yanni & Shi, Hongda, 2023. "Experimental study of a floating two-body wave energy converter," Renewable Energy, Elsevier, vol. 218(C).
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    7. Gao, Yu & Ke, Li & Liu, Kun & Zhang, Ming & Gao, Zhenguo, 2025. "Latching control strategies for improving performance of coupled linear-bistable wave energy converters," Energy, Elsevier, vol. 324(C).
    8. Qi, Lingfei & Song, Juhuang & Wang, Yuan & Yi, Minyi & Zhang, Zutao & Yan, Jinyue, 2024. "Mechanical motion rectification-based electromagnetic vibration energy harvesting technology: A review," Energy, Elsevier, vol. 289(C).
    9. Ju, Kun & Xu, Sheng & Zhang, Huidong & Jin, Siya, 2025. "A study on a novel multi-body floating-point absorber with a nonlinear power take-off system and its hydrodynamic performance," Energy, Elsevier, vol. 324(C).
    10. Han, Meng & Cao, Feifei & Shi, Hongda & Zhu, Kai & Dong, Xiaochen & Li, Demin, 2023. "Layout optimisation of the two-body heaving wave energy converter array," Renewable Energy, Elsevier, vol. 205(C), pages 410-431.
    11. Yadong Wen & Weijun Wang & Hua Liu & Longbo Mao & Hongju Mi & Wenqiang Wang & Guoping Zhang, 2018. "A Shape Optimization Method of a Specified Point Absorber Wave Energy Converter for the South China Sea," Energies, MDPI, vol. 11(10), pages 1-22, October.
    12. Mahmoodi, Kumars & Ghassemi, Hassan & Razminia, Abolhassan, 2020. "Performance assessment of a two-body wave energy converter based on the Persian Gulf wave climate," Renewable Energy, Elsevier, vol. 159(C), pages 519-537.
    13. Trivedi, Kshma & Koley, Santanu, 2023. "Performance of a hybrid wave energy converter device consisting of a piezoelectric plate and oscillating water column device placed over an undulated seabed," Applied Energy, Elsevier, vol. 333(C).
    14. Shadmani, Alireza & Nikoo, Mohammad Reza & Gandomi, Amir H. & Chen, Mingjie & Nazari, Rouzbeh, 2024. "Advancements in optimizing wave energy converter geometry utilizing metaheuristic algorithms," Renewable and Sustainable Energy Reviews, Elsevier, vol. 197(C).
    15. Al Shami, Elie & Wang, Zhun & Wang, Xu, 2021. "Non-linear dynamic simulations of two-body wave energy converters via identification of viscous drag coefficients of different shapes of the submerged body based on numerical wave tank CFD simulation," Renewable Energy, Elsevier, vol. 179(C), pages 983-997.
    16. Li, Xiaofan & Liang, Changwei & Chen, Chien-An & Xiong, Qiuchi & Parker, Robert G. & Zuo, Lei, 2020. "Optimum power analysis of a self-reactive wave energy point absorber with mechanically-driven power take-offs," Energy, Elsevier, vol. 195(C).
    17. Asai, Takehiko & Sugiura, Keita, 2021. "Numerical evaluation of a two-body point absorber wave energy converter with a tuned inerter," Renewable Energy, Elsevier, vol. 171(C), pages 217-226.
    18. Elie Al Shami & Ran Zhang & Xu Wang, 2018. "Point Absorber Wave Energy Harvesters: A Review of Recent Developments," Energies, MDPI, vol. 12(1), pages 1-36, December.
    19. Guo, Bingyong & Ringwood, John V., 2021. "Geometric optimisation of wave energy conversion devices: A survey," Applied Energy, Elsevier, vol. 297(C).
    20. Li, Demin & Dong, Xiaochen & Borthwick, Alistair G.L. & Sharma, Sanjay & Wang, Tianyuan & Huang, Heao & Shi, Hongda, 2024. "Two-buoy and single-buoy floating wave energy converters: A numerical comparison," Energy, Elsevier, vol. 296(C).

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