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Repowering Steel Tubular Wind Turbine Towers Enhancing them by Internal Stiffening Rings

Author

Listed:
  • Yu Hu

    (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

  • Jian Yang

    (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

  • Charalampos Baniotopoulos

    (School of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK)

Abstract

This paper presents a robust repowering approach to the structural response of tubular steel wind turbine towers enhanced by internal stiffening rings. First, a structural response simulation model was validated by comparison with the existing experimental data. This was then followed with a mesh density sensitivity analysis to obtain the optimum element size. When the outdated wind turbine system needs to be upgraded, the wall thickness, the mid-section width-to-thickness ratio and the spacing of the stiffening rings of wind turbine tower were considered as the critical design variables for repowering. The efficiency repowering range of these design variables of wind turbine towers of various heights between 50 and 250 m can be provided through the numerical analysis. Finally, the results of efficiency repowering range of design variables can be used to propose a new optimum design of the wind turbine system when repowering a wind farm.

Suggested Citation

  • Yu Hu & Jian Yang & Charalampos Baniotopoulos, 2020. "Repowering Steel Tubular Wind Turbine Towers Enhancing them by Internal Stiffening Rings," Energies, MDPI, vol. 13(7), pages 1-23, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1538-:d:336701
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    References listed on IDEAS

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    1. Junling Chen & Yiqing Xu & Jinwei Li, 2020. "Numerical Investigation of the Strengthening Method by Circumferential Prestressing to Improve the Fatigue Life of Embedded-Ring Concrete Foundation for Onshore Wind Turbine Tower," Energies, MDPI, vol. 13(3), pages 1-17, January.
    2. Hongyan Ding & Zuntao Feng & Puyang Zhang & Conghuan Le & Yaohua Guo, 2020. "Floating Performance of a Composite Bucket Foundation with an Offshore Wind Tower during Transportation," Energies, MDPI, vol. 13(4), pages 1-19, February.
    3. Kilic, Gokhan & Unluturk, Mehmet S., 2015. "Testing of wind turbine towers using wireless sensor network and accelerometer," Renewable Energy, Elsevier, vol. 75(C), pages 318-325.
    4. Kim, Dong Hyawn & Lee, Sang Geun & Lee, Il Keun, 2014. "Seismic fragility analysis of 5 MW offshore wind turbine," Renewable Energy, Elsevier, vol. 65(C), pages 250-256.
    5. Fatih Karpat, 2013. "A Virtual Tool for Minimum Cost Design of a Wind Turbine Tower with Ring Stiffeners," Energies, MDPI, vol. 6(8), pages 1-19, July.
    6. Tziavos, Nikolaos I. & Hemida, H. & Dirar, S. & Papaelias, M. & Metje, N. & Baniotopoulos, C., 2020. "Structural health monitoring of grouted connections for offshore wind turbines by means of acoustic emission: An experimental study," Renewable Energy, Elsevier, vol. 147(P1), pages 130-140.
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    Cited by:

    1. Yu Hu & Jian Yang & Charalampos Baniotopoulos, 2020. "Study of the Bearing Capacity of Stiffened Tall Offshore Wind Turbine Towers during the Erection Phase," Energies, MDPI, vol. 13(19), pages 1-19, October.
    2. Michaela Gkantou & Carlos Rebelo & Charalampos Baniotopoulos, 2020. "Life Cycle Assessment of Tall Onshore Hybrid Steel Wind Turbine Towers," Energies, MDPI, vol. 13(15), pages 1-21, August.
    3. Isabel C. Gil-García & Ana Fernández-Guillamón & M. Socorro García-Cascales & Angel Molina-García, 2021. "A Multi-Factorial Review of Repowering Wind Generation Strategies," Energies, MDPI, vol. 14(19), pages 1-25, October.
    4. Georgios Malliotakis & Panagiotis Alevras & Charalampos Baniotopoulos, 2021. "Recent Advances in Vibration Control Methods for Wind Turbine Towers," Energies, MDPI, vol. 14(22), pages 1-37, November.

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