STUDY OF UNSTEADY AERODYNAMIC CHARACTERISTICS OF FLOATING WIND TURBINE UNDER YAW CONDITION

被引：0

作者：

Yuan L. ^{[1
]}

Meng H. ^{[1
]}

Liu Y. ^{[1
]}

Wu G. ^{[1
]}

Liu X. ^{[2
]}

机构：

[1] School of New Energy, North China Electric Power University, Beijing

[2] Clean Energy Technology Research Institute, China Huaneng Group Co.，Ltd., Beijing

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 11期

关键词：

aerodynamic loads; blades; free vortex wake; offshore wind turbines; yaw;

D O I：

10.19912/j.0254-0096.tynxb.2023-0389

中图分类号：

学科分类号：

摘要：

In this research，the free vortex wake method was used to investigate the change of power and aerodynamic characteristics of floating wind turbine under yaw conditions when influenced by pitching motion. The research results showe that as the yaw angle increased，the output power decreases in a second-order cosine function and the thrust decreases in a first-order cosine function. The minimum value of the dynamic local axial induction factor has a phase shift from 0 to 22 degrees. The decomposition of the normal force coefficient curve reveales that the amplitude of the fundamental frequency and the second harmonic components are positively correlated with the yaw angle，while the third harmonic component is not correlated with the yaw angle. Among them，the coupling of wind turbine rotation and pitching motion resultes in a higher frequency component of the normal force coefficient relative to the motion frequency. © 2023 Science Press. All rights reserved.

引用

页码：387 / 392

页数：5

共 11 条

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