実測に基づく風力発電コンクリートタワーの風応答特性に関する研究

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タイトル別名
  • STUDY ON WIND-INDUCED RESPONSES OF A WIND TURBINE CONCRETE TOWER BASED ON FIELD MEASUREMENTS
  • ジッソク ニ モトヅク フウリョク ハツデン コンクリートタワー ノ カゼ オウトウ トクセイ ニ カンスル ケンキュウ

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抄録

This paper describes the characteristics of wind-induced responses of a prestressed concrete tower for a propeller-type wind turbine with three blades (Hub height: 50m, Rated power: 600kW). The responses were investigated using field measurement data. As a result, the along-wind dynamic response displacements at the tower top were more dominant than the across-wind ones, due to the rotor of the wind turbine. Furthermore, the response increased at wind speed at a hub height of 5m/sec. This is because the first natural frequency of the wind turbine tower corresponds to the blade-passing frequency, i.e. the 3P frequency. However, its response was smaller than that of the steel tower.

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