統計学的手法に基づくガスト形状の評価及び水平軸風車ロータ負荷解析への適用

概要

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The gust events frequently bring about the breakdown and fatigue damage of the wind turbine generator system (WTGS). Therefore load calculation using gust model should be performed during the design process of WTGS. The present paper describes averaged shapes, i.e. temporal and spatial velocity variations of the gust events for several wind conditions, which have been derived from the time-series of the simultaneous wind measurements at multiple points. The extracted temporal mean gust shapes have been compared to those from NewGust model, which is a kind of theoretical model, and the validity of the model is evaluated. In addition, the aerodynamic loads on the rotor blades due to the gust events are analyzed by using mean gust shapes from NewGust model and a numerical calculation method.
ターボ機械協会の論文
2009-02-10