Application of Blades Aerodynamic Optimization Design Platform Based on the Performance of Offshore Wind Turbines

Abstract

Optimizing aerodynamic performance with low loads is a core objective in high-power wind turbine blade design. This study develops a blade aerodynamic optimization design platform based on the performance of a wind turbine. By applying automated design principles, the platform rapidly iterates to obtain blade profiles that meet turbine development requirements, significantly improving design efficiency and reliability. Key findings include That Optimizing chord length and relative thickness distributions substantially contribute to enhancing power generation while reducing load levels. Relative thickness and twist angle distributions are critical parameters influencing stall characteristics during blade operation. Superior aerodynamic performance notably increases annual rated power generation hours but simultaneously elevates blade thrust and root loads. Among the evaluated designs meeting turbine specifications, the #436 blade achieves a maximum power coefficient of 0.4679 while maintaining low ultimate and fatigue loads. Furthermore, when paired with the wind turbine, its rated wind speed reaches 10.9 m/s, and its annual rated power generation hours under various inflow wind speed conditions all meet the turbine system’s development requirements. Consequently, the #436 blade demonstrates exceptional system compatibility, making the 8.5 MW turbine equipped with this blade highly competitive in the market.

Keywords

Wind turbine blade / Aerodynamic configuration / Power generation efficiency / Load analysis / Optimization design

Acknowledgments

This work was supported by the development and research project of CRRC Shandong Wind Power Co., Ltd.

Author Contributions

Conceptualization, Y.Z.; Methodology, M.G.; Software, M.G.; Validation, A.S. and H.Y.; Formal Analysis, M.G. and A.S.; Investigation, Y.Z.; Data Curation, A.S. and M.G.; Writing—Original Draft Preparation, Y.Z.; Writing—Review & Editing, Y.Z.; Visualization, M.G.; Supervision, Y.Z.; Project Administration, Y.Z.

Ethics Statement

Not applicable for studies not involving humans or animals.

Informed Consent Statement

Not applicable for studies not involving humans.

Data Availability Statement

The data is publicly available and can be used with the author's approval.

Funding

This research received no external funding.

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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