Extreme wind loading prediction of a 2MW horizontal-axis wind turbine
Severe wind turbine failures were reported during several heavy typhoons recently invading Taiwan.The extreme wind condition of these tropical storms is generally characterized by a very high wind speed accompanied by a strong flow turbulence as well as a rapid change of wind course.The significant aerodynamic loading under these unusual wind conditions can bring a partial breakdown, even a full failure, to structures or machinery, whereas a wind turbine can no longer operate with any allowable safety requirement afterwards.In this study, the aerodynamic loadings, such as the pitch moment of blade, the yaw moment of nacelle, the axial moment of rotor and the overturning moment of tower, under typical typhoon conditions in Taiwan are numerically predicted with the help of flow simulation around a target wind turbine.The scope of this paper is to suggest a design criterion of the pitch, axial, overturning and yaw moments for the target wind turbine as well as to recommend basic safety requirements for its operation in Taiwan.
Wind turbine extreme load aerodynamic moment wind rose diagram,CFD
Ke Chu LeeShiu Wu Chau
Department of Engineering Science and Ocean Engineering, National Taiwan University Taipei, China
国际会议
The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)
江苏 无锡
英文
600-605
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）