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Mechanical design and numerical simulation of digital-displacement radial piston pump for multi-megawatt wind turbine drivetrain

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  • Tao, Jing
  • Wang, Huaiyu
  • Liao, Haohan
  • Yu, Suiran

Abstract

Digital displacement radial piston pump offers an alternative to existing drivetrain concepts of wind turbines. However, today's hydraulic components have not been scaled up to handle the loads of multi-megawatt turbines. This study aimed to exploit the mechanical design of digital-displacement radial piston pump for large-scale wind turbine drivetrain with the combination of parametric modeling, algorithm-based generative design and simulation-based evaluation methods. It first presents the analysis of working principles, parametrical modeling of major components and mathematical modeling of design constraints of the pump. Then, an exhaustive method–based generative approach is proposed for more innovative and effective pump design and the mechanical-hydraulic coupling model is developed for dynamic characteristic analysis and design evaluation. The proposed models and approaches are then applied to the design of a 5 MW radial piston digital-displacement pump for demonstration and validation. The comparison between the proposed optimal pump design scheme and an existing conceptual pump shows similar efficiency, but much more compact structure, higher power density and potentially better controllability and reliability which are likely preferred for wind turbine application.

Suggested Citation

  • Tao, Jing & Wang, Huaiyu & Liao, Haohan & Yu, Suiran, 2019. "Mechanical design and numerical simulation of digital-displacement radial piston pump for multi-megawatt wind turbine drivetrain," Renewable Energy, Elsevier, vol. 143(C), pages 995-1009.
    • Handle: RePEc:eee:renene:v:143:y:2019:i:c:p:995-1009
    DOI: 10.1016/j.renene.2019.04.159
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    References listed on IDEAS

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    1. Buhagiar, Daniel & Sant, Tonio, 2014. "Steady-state analysis of a conceptual offshore wind turbine driven electricity and thermocline energy extraction plant," Renewable Energy, Elsevier, vol. 68(C), pages 853-867.
    2. Sun, Xiaojing & Huang, Diangui & Wu, Guoqing, 2012. "The current state of offshore wind energy technology development," Energy, Elsevier, vol. 41(1), pages 298-312.
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    1. Roggenburg, Michael & Esquivel-Puentes, Helber A. & Vacca, Andrea & Bocanegra Evans, Humberto & Garcia-Bravo, Jose M. & Warsinger, David M. & Ivantysynova, Monika & Castillo, Luciano, 2020. "Techno-economic analysis of a hydraulic transmission for floating offshore wind turbines," Renewable Energy, Elsevier, vol. 153(C), pages 1194-1204.
    2. Roggenburg, Michael & Warsinger, David M. & Bocanegra Evans, Humberto & Castillo, Luciano, 2021. "Combatting water scarcity and economic distress along the US-Mexico border using renewable powered desalination," Applied Energy, Elsevier, vol. 291(C).
    3. Erdemir, Gökhan & Kuzucuoğlu, Ahmet Emin & Selçuk, Fahri Anil, 2020. "A mobile wind turbine design for emergencies in rural areas," Renewable Energy, Elsevier, vol. 166(C), pages 9-19.

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