TY - GEN
T1 - A procedure for choosing optimal materials of wind turbine flexible blades
AU - Cognet, V.
AU - Thiria, B.
AU - Courrech du Pont, S.
N1 - Publisher Copyright:
© 2019 Taylor & Francis Group, London.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The question of the scope and the applicability of a new passive pitch control method using homogeneous soft blades is studied. After reminding the role of pitch control in wind turbines, the model for the deformation of wind turbine flexible blades is presented. The soft blade is modeled as a thin plate with the Kirchhoff-Love plate theory. Centrifugal and aerodynamic forces are considered. First, the model finds the optimal variation of the pitch angle of rigid blades with respect to the operation range. Then using a reduced parameter set of three dimensionless numbers (θ0, CY, CC ), the model also quickly determines the soft materials which passively reproduce the more accurately the optimal variation of the pitch angle on the operation range found previously. Numerical results show that already existing soft materials can passively mimic the ideal pitch angle variation, leading to an efficiency gain of 8%.
AB - The question of the scope and the applicability of a new passive pitch control method using homogeneous soft blades is studied. After reminding the role of pitch control in wind turbines, the model for the deformation of wind turbine flexible blades is presented. The soft blade is modeled as a thin plate with the Kirchhoff-Love plate theory. Centrifugal and aerodynamic forces are considered. First, the model finds the optimal variation of the pitch angle of rigid blades with respect to the operation range. Then using a reduced parameter set of three dimensionless numbers (θ0, CY, CC ), the model also quickly determines the soft materials which passively reproduce the more accurately the optimal variation of the pitch angle on the operation range found previously. Numerical results show that already existing soft materials can passively mimic the ideal pitch angle variation, leading to an efficiency gain of 8%.
UR - https://www.scopus.com/pages/publications/85067180183
M3 - Conference contribution
AN - SCOPUS:85067180183
SN - 9781138585355
T3 - Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018
SP - 895
EP - 902
BT - Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018
A2 - Soares, C. Guedes
PB - CRC Press/Balkema
T2 - 3rd International Conference on Renewable Energies Offshore, RENEW 2018
Y2 - 8 October 2018 through 10 October 2018
ER -