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On improving wave energy conversion, part II: Development of latching control technologies

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  • Sheng, Wanan
  • Alcorn, Raymond
  • Lewis, Anthony

Abstract

In the first part of the investigation, a new latching control technology is proposed, and it has been shown that the new latching control technique is capable of greatly improving wave energy conversion in regular waves. In this part of the research, a new analysis technique is developed for studying the latching control technology. A ‘time-out’ method is developed and employed for ‘re-packing’ the dynamic system, hence the analysis of the latching control technology can be changed from a complete nonlinear dynamics into a simple linear dynamic system, and it is further proven that the ‘re-packed’ dynamic system can be transformed back to frequency domain for further analysis. In the research, we could prove how the phase optimal condition can be attained. Further on, the new latching control technology will be used in irregular waves. Unlike many other latching control technologies, the new latching control does not need the detailed future information. In the development of the technology, we will show how we can obtain the latching duration for irregular waves for improving wave power extraction. As a result, we could remove one barrier in implementing latching control strategy while the wave energy conversion can still be much improved.

Suggested Citation

  • Sheng, Wanan & Alcorn, Raymond & Lewis, Anthony, 2015. "On improving wave energy conversion, part II: Development of latching control technologies," Renewable Energy, Elsevier, vol. 75(C), pages 935-944.
    • Handle: RePEc:eee:renene:v:75:y:2015:i:c:p:935-944
    DOI: 10.1016/j.renene.2014.09.049
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    References listed on IDEAS

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    1. Kara, Fuat, 2010. "Time domain prediction of power absorption from ocean waves with latching control," Renewable Energy, Elsevier, vol. 35(2), pages 423-434.
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    1. Temiz, Irina & Leijon, Jennifer & Ekergård, Boel & Boström, Cecilia, 2018. "Economic aspects of latching control for a wave energy converter with a direct drive linear generator power take-off," Renewable Energy, Elsevier, vol. 128(PA), pages 57-67.
    2. Henriques, J.C.C. & Gato, L.M.C. & Falcão, A.F.O. & Robles, E. & Faÿ, F.-X., 2016. "Latching control of a floating oscillating-water-column wave energy converter," Renewable Energy, Elsevier, vol. 90(C), pages 229-241.
    3. Haraguchi, Ruriko & Asai, Takehiko, 2020. "Enhanced power absorption of a point absorber wave energy converter using a tuned inertial mass," Energy, Elsevier, vol. 202(C).
    4. Soudan, Bassel, 2019. "Community-scale baseload generation from marine energy," Energy, Elsevier, vol. 189(C).
    5. Jahangir, Mohammad Hossein & Hosseini, Seyed Sina & Mehrpooya, Mehdi, 2018. "A detailed theoretical modeling and parametric investigation of potential power in heaving buoys," Energy, Elsevier, vol. 154(C), pages 201-209.
    6. Tri, Nguyen Minh & Truong, Dinh Quang & Thinh, Do Hoang & Binh, Phan Cong & Dung, Dang Tri & Lee, Seyoung & Park, Hyung Gyu & Ahn, Kyoung Kwan, 2016. "A novel control method to maximize the energy-harvesting capability of an adjustable slope angle wave energy converter," Renewable Energy, Elsevier, vol. 97(C), pages 518-531.
    7. Haeng Sik Ko & Sangho Kim & Yoon Hyeok Bae, 2021. "Study on Optimum Power Take-Off Torque of an Asymmetric Wave Energy Converter in Western Sea of Jeju Island," Energies, MDPI, vol. 14(5), pages 1-12, March.
    8. Li, Wenlong & Chau, K.T. & Lee, Christopher H.T. & Ching, T.W. & Chen, Mu & Jiang, J.Z., 2017. "A new linear magnetic gear with adjustable gear ratios and its application for direct-drive wave energy extraction," Renewable Energy, Elsevier, vol. 105(C), pages 199-208.
    9. Sheng, Wanan, 2019. "Wave energy conversion and hydrodynamics modelling technologies: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 109(C), pages 482-498.
    10. Faÿ, François-Xavier & Henriques, João C. & Kelly, James & Mueller, Markus & Abusara, Moahammad & Sheng, Wanan & Marcos, Marga, 2020. "Comparative assessment of control strategies for the biradial turbine in the Mutriku OWC plant," Renewable Energy, Elsevier, vol. 146(C), pages 2766-2784.
    11. Younesian, Davood & Alam, Mohammad-Reza, 2017. "Multi-stable mechanisms for high-efficiency and broadband ocean wave energy harvesting," Applied Energy, Elsevier, vol. 197(C), pages 292-302.
    12. Ozkop, Emre & Altas, Ismail H., 2017. "Control, power and electrical components in wave energy conversion systems: A review of the technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 67(C), pages 106-115.
    13. Zhang, Xiantao & Tian, Xinliang & Xiao, Longfei & Li, Xin & Chen, Lifen, 2018. "Application of an adaptive bistable power capture mechanism to a point absorber wave energy converter," Applied Energy, Elsevier, vol. 228(C), pages 450-467.
    14. Zhang, Zhenquan & Qin, Jian & Wang, Dengshuai & Wang, Wei & Liu, Yanjun & Xue, Gang, 2023. "Research on wave excitation estimators for arrays of wave energy converters," Energy, Elsevier, vol. 264(C).
    15. Shadman, Milad & Guarniz Avalos, Gustavo Omar & Estefen, Segen F., 2021. "On the power performance of a wave energy converter with a direct mechanical drive power take-off system controlled by latching," Renewable Energy, Elsevier, vol. 169(C), pages 157-177.
    16. Liguo Wang & Jan Isberg, 2015. "Nonlinear Passive Control of a Wave Energy Converter Subject to Constraints in Irregular Waves," Energies, MDPI, vol. 8(7), pages 1-15, June.
    17. Li, L. & Gao, Y. & Ning, D.Z. & Yuan, Z.M., 2021. "Development of a constraint non-causal wave energy control algorithm based on artificial intelligence," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).
    18. Soumya Ghosh & Mrinmoy Majumder & Manish Pal, 2018. "Application of metaheuristic algorithm to identify priority parameters for the selection of feasible location having optimum wave energy potential," Energy & Environment, , vol. 29(1), pages 3-28, February.

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