日本における風特性と風力タービン設計のための風モデル : 第1報,NEDO FTデータの乱流強度解析とその結果を反映した通常乱流モデルの提案(流体工学,流体機械)

概要

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In order to survey the wind characteristics of Japan where mountainous terrain is dominant, a large amount of wind data (NEDO Field Test data) that includes more than 300 measurement sites in Japan were analyzed in detail, particularly on the turbulence characteristics. As a result, profiles of 90% quantiles of turbulence intensity estimated from all NEDO Field Test data are well approximated by the IEC Normal Turbulence Model (NTM). However, the turbulence intensity levels of more than 65% of measurement datasets exceed the most severe turbulence category (category A) in IEC 61400-1 (Ed. 3). Therefore, we conclude that the present IEC turbulence model for wind turbine design do not reflect the severe wind condition of mountainous countries such as Japan. It is considered that this is one of main reason for frequent troubles of wind turbine in Japan. In order to overcome this problem, new criteria for NTM were proposed. The suitability of the new criteria to severe wind characteristics in Japan was discussed.
社団法人日本機械学会の論文
2007-09-25