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Study on Design and Development for High-Speed High-Efficient Off-Shore Wind Farm

高速高效海上风电场设计与开发研究

基本信息

批准号：
14350092
负责人：
KIKUYAMA Koji
金额：
$ 9.22万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350092/
关键词：
Off-Shore Wind Farm Spectrum of Turbulence Wind Turbulence Coherence Complex Terrain Prediction of Acoustic Noise Large Eddy Simulation Pressure Distribution of blade 風力発電風況測定大気乱流翼周り流れ複雑地形回転翼面洋上風車ウィンドファーム風況精査風車翼型

项目摘要

In order to promote off-shore wind farms in Japan, there are many technical problems such as the forecast of the potential and the unsteady nature of the wind near the coast, the shape of the aerofoils appropriate to the high speed wind turbines, the prediction of the noise and so on. This research project was carried out to obtain the fundamental data for the design and development of the off-shore wind farm by three teams of different universities. The results of each team are summarized as follows :Nagoya University Team : The wind measurements were carried out in the field to clarify the turbulence characteristics of the wind flow over a complex terrain and the effects of the slope on the turbulence was evaluated from the power spectrum and spatial coherence of the wind fluctuation. Turbulence intensity becomes larger with the increase in the slope steepness and the fluctuation exhibits higher level in the range of high frequency.Tokyo University Team : Using a large-eddy simulation and direct noise simulation, the flow and acoustic field around a wind turbine blade were calculated, and the aerodynamic performance and acoustic emission are predicted for the actual tip shape.Mie University Team : By wind tunnel study the pressure distribution on a rotor blade was measured for rotational and stationary states. The difference of the pressure distribution between the rotational and stationary conditions becomes large in the root region of the blade.

为了在日本推广海上风电场，存在着近海风势和非定常性质的预报、适合高速风电机组的翼型选择、噪声预报等诸多技术难题。该研究项目是由不同大学的三个团队进行的，目的是为海上风电场的设计和开发提供基础数据。各团队的研究结果总结如下：名古屋大学团队：现场进行了风测量，以阐明复杂地形上的风流的湍流特征，并从风脉动的功率谱和空间相干性来评估坡度对湍流的影响。湍流强度随着坡度的增大而增大，在高频范围内波动程度较大。东京大学团队：利用大涡模拟和直接噪声模拟，计算了风力机叶片周围的流场和声场，预测了实际叶尖形状的气动性能和声发射。Mie大学团队：通过风洞研究，测量了旋转和静止状态下叶片上的压力分布。在叶片根部，旋转和静止状态下的压力分布相差较大。