Journal of Marine Science and Application

, Volume 18, Issue 3, pp 325–333 | Cite as

Array Characteristics of Oscillating-Buoy Two-Floating-Body Wave-Energy Converter

  • Renwei Ji
  • Qihu ShengEmail author
  • Shuqi Wang
  • Yuquan Zhang
  • Xuewei Zhang
  • Liang Zhang
Research Article


As the energy supply problem worsens, the development and utilization of marine renewable energy have become a research hotspot. The development of wave energy is moving from the near shore to the distant sea. The power-generation efficiency of a single two-floating-body wave-energy converter is relatively low. To fully utilize wave energy and improve the wave-energy capture rate of a fixed sea area, arranging a two-floating-body wave-energy converter array is necessary. This paper first introduces the basic theory of multi-floating flow field, time-domain calculation method, and influence factor of the wave-energy converter array. Then, the development of AQWA software in Fortran language considers the effect of power takeoff. A calculation method based on ANSYS–AQWA is proposed to simulate the motion of the oscillating-buoy two-floating-body wave-energy converter. The results are compared with the experimental results from the National Renewable Energy Laboratory. Finally, the ANSYS–AQWA method is used to study the power characteristics of simple and complex arrays of wave-energy converters. The average power generation of simple arrays is largest at 0°, and the average power generation of complex arrays does not change with the wave direction. Optimal layout spacing exists for the simple and complex arrays. These findings can serve as a valuable reference for the large-scale array layout of wave-energy converters in the future.


Oscillating buoy Two-floating body Wave-energy converter AQWA Converter array Power characteristics 



Foundation item: Supported by the National Natural Science Foundation of China under Grant Nos. 5171101175, 11572094, 51809083, and 51579055.


  1. Borgarino B, Babarit A, Ferrant P (2012) Impact of wave interactions effects on energy absorption in large arrays of wave energy converters. Ocean Eng 41:79–88. CrossRefzbMATHGoogle Scholar
  2. Budal K (1977) Theory for absorption of wave power by a system of interacting bodies. J Ship Res 21(4):248–253. Google Scholar
  3. Chen X (2013) Time-domain simulation of the motion response of FPSO in waves. Master thesis, Harbin Institute of Technology, Harbin, 32-50Google Scholar
  4. Child BFM (2011) On the configuration of arrays of floating wave energy converters. PhD thesis, University of Edinburgh, EdinburghGoogle Scholar
  5. Child BFM, Venugopal V (2010) Optimal configurations of wave energy device arrays. Ocean Eng 37(16):1402–1417. CrossRefGoogle Scholar
  6. Dai YM (2015) Research on a floating type double floating wave power generation device. Master thesis, South China University of Technology, Guangzhou, 28–65Google Scholar
  7. Eriksson M, Isberg J, Leijon M (2005) Hydrodynamic modelling of a direct drive wave energy converter. Int J Eng Sci 43:1377–1387. CrossRefGoogle Scholar
  8. Evans DV (1979) Some theoretical aspects of three-dimensional wave-energy absorbers. Proceedings of the First Symposium on Wave Energy Utilization, Chalmers University of Technology, Gothenburg, Sweden, 77–106Google Scholar
  9. Falnes J (1980) Radiation impedance matrix and optimum power absorption for interacting oscillators in surface waves. Appl Ocean Res 2(2):75–80. CrossRefGoogle Scholar
  10. Garnaud X, Mei CC (2009) Wave-power extraction by a compact array of buoys. J Fluid Mech 635:389–413MathSciNetCrossRefzbMATHGoogle Scholar
  11. Guan Y (2011) Feasibility study on the development and utilization of wave energy in China. Master thesis, Ocean University of China, Qingdao, 10–30. DOI:
  12. Gunn K, Stock-Williams C (2012) Quantifying the global wave power resource. Renew Energy 44(4):296–304. CrossRefGoogle Scholar
  13. Guo W, Zhou NF, Wang SQ, Zhao QS (2018) Hydrodynamic and capacitated analysis of wave energy devices with nonlinear PTO. Journal of Huazhong University of Science and Technology (Natural Science Edition) 2018(4):57–62. Google Scholar
  14. Li JY, He HZ (2013) A review of the technical research on wave energy acquisition device. Ocean Development and Management 30(10):67–71. Google Scholar
  15. Nazari M, Ghassemi H, Ghiasi M, Sayehbani M (2013) Design of the point absorber wave energy converter for Assaluyeh port. Iranica Journal of Energy & Environment 4(2):130–135. Google Scholar
  16. Sinha A, Karmakar D, Guedes Soares C (2016) Performance of optimally tuned arrays of heaving point absorbers. Renew Energy 92:517–531. CrossRefGoogle Scholar
  17. Teng B, Zhao MZ, Jiang SC, Gou Y, Lv L (2010) Calculation and analysis of hydrodynamic coefficient of spar platform heave plate. Ocean Eng 28(3):1–8. Google Scholar
  18. Thomas G, Evans DV (1981) Arrays of the three-dimensional wave-energy absorbers. J Fluid Mech 108:67–88. CrossRefzbMATHGoogle Scholar
  19. Wolgamot HA, Taylor PH, Taylor RE (2012) The interaction factor and directionality in wave energy arrays. Ocean Eng 47:65–73. CrossRefGoogle Scholar
  20. Xu G, Wang S, Zhu R, Zhang L (2018) Hydrodynamic analysis of variable-pitch vertical axis turbine under yawing motion. Journal of Harbin Engineering University 39(2):304–309. Google Scholar
  21. Yu YH, Li Y (2013) Reynolds-averaged Navier–Stokes simulation of the heave performance of a two-body floating-point absorber wave energy system. Comput Fluids 73:104–114. CrossRefzbMATHGoogle Scholar
  22. Zhang XT (2015) Hydrodynamic study of oscillating floating wave energy generator. Master thesis, Shanghai Jiao Tong University, Shanghai, pp 26–45Google Scholar
  23. Zhang L, Dai YS (1992) Time-domain solution to the diffraction problem of objects sailing near the surface. Shipbuilding of China 33(4):1–14Google Scholar
  24. Zhao SM, Liu FY, Zhang JH, Zhang ZH, Bai Y, Zhang R (2008) Basic thinking of China’s marine energy development and utilization strategy research. Ocean Technol 27(3):80–83Google Scholar

Copyright information

© Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Renwei Ji
    • 1
    • 2
  • Qihu Sheng
    • 1
    • 2
    Email author
  • Shuqi Wang
    • 3
  • Yuquan Zhang
    • 4
  • Xuewei Zhang
    • 1
    • 2
  • Liang Zhang
    • 1
    • 2
  1. 1.College of Shipbuilding EngineeringHarbin Engineering UniversityHarbinChina
  2. 2.Institute of Ocean Renewable Energy SystemHarbin Engineering UniversityHarbinChina
  3. 3.College of Naval Architecture and Ocean EngineeringJiangsu University of Science and TechnologyZhenjiangChina
  4. 4.College of Energy and Electrical EngineeringHohai UniversityNanjingChina

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