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Comparison of Blade Aeroelastic Responses between Upwind and Downwind of 10 MW Wind Turbines under the Shear Wind Condition

Lookup NU author(s): Dr Bofeng Xu, Dr Xiang Shen, Professor Zhiqiang Hu

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

This paper examines the potential for reducing the cost of energy for super‐scale windturbines through the use of a downwind configuration. Using nonlinear aeroelastic modeling, theresponses of 10 MW upwind and downwind wind turbine blades are simulated and compared undershear wind conditions. The study evaluates the impact of both nonlinear and linear aeroelasticmodels on the dynamic response of different blade sizes, highlighting the need for a nonlinear approach.Results indicate that the linear model overestimates blade deformations (18.14%) and thenonlinear model is more accurate for predicting the aeroelastic response of ultra‐long blades of 86.35m. The study also finds that the downwind turbine blade experiences smaller flapwise moment(17.53%), and blade tip flapwise deformation (33.97%) than the upwind turbine blade, with increasedload and deformation fluctuation as wind shear increases

Publication metadata

Author(s): Kang H, Xu B, Shen X, Li Z, Cai X, Hu Z

Publication type: Article

Publication status: Published

Journal: Energies

Year: 2023

Volume: 16

Issue: 6

Online publication date: 08/03/2023

Acceptance date: 06/03/2023

Date deposited: 13/03/2023

ISSN (electronic): 1996-1073

Publisher: MDPI AG

URL: https://doi.org/10.3390/en16062567

DOI: 10.3390/en16062567

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