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Iterative approach for optimising coefficient of power, coefficient of lift and drag of wind turbine rotor

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  • Rajakumar, S.
  • Ravindran, D.

Abstract

This paper presents an approach for the determination of aerodynamic performance characteristics of horizontal-axis wind turbines. The optimum twist of a windmill blade is examined on the basis of elementary blade-element theory. For a given wind speed and blade angular velocity, it is shown that the maximum power efficiency is achieved when the blade is twisted according to a program that depends upon the variation of the sectional lift and drag coefficients with angle of attack. Results for a typical airfoil cross-section show that the optimum angle of attack and optimum twist angle of the blade improves the performance of the wind turbine.

Suggested Citation

  • Rajakumar, S. & Ravindran, D., 2012. "Iterative approach for optimising coefficient of power, coefficient of lift and drag of wind turbine rotor," Renewable Energy, Elsevier, vol. 38(1), pages 83-93.
    • Handle: RePEc:eee:renene:v:38:y:2012:i:1:p:83-93
    DOI: 10.1016/j.renene.2011.07.006
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    References listed on IDEAS

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    1. Lanzafame, R. & Messina, M., 2007. "Fluid dynamics wind turbine design: Critical analysis, optimization and application of BEM theory," Renewable Energy, Elsevier, vol. 32(14), pages 2291-2305.
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    Cited by:

    1. Tavares Dias do Rio Vaz, Déborah Aline & Vaz, Jerson Rogério Pinheiro & Mesquita, André Luiz Amarante & Pinho, João Tavares & Pinho Brasil Junior, Antonio Cesar, 2013. "Optimum aerodynamic design for wind turbine blade with a Rankine vortex wake," Renewable Energy, Elsevier, vol. 55(C), pages 296-304.
    2. Miller, Aaron & Chang, Byungik & Issa, Roy & Chen, Gerald, 2013. "Review of computer-aided numerical simulation in wind energy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 25(C), pages 122-134.
    3. Lanzafame, R. & Messina, M., 2013. "Advanced brake state model and aerodynamic post-stall model for horizontal axis wind turbines," Renewable Energy, Elsevier, vol. 50(C), pages 415-420.

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