Performance of downwind turbines in complex terrains

研究成果: ジャーナルへの寄稿記事

27 引用 (Scopus)

抄録

This study verified an advantage in the performance of downwind-turbines in complex terrain, compared with upwind-turbines. The comparison, for otherwise identical machines, was by wind turbine simulations, field tests, and local area wind predictions. A three-dimensional power calculation function was formulated based on momentum theory. It indicates the advantage of downwind-turbines in up-flow wind, as they have smaller misalignment due to their negative tilt angles. Validities of the function and the downwind-turbine advantage were verified through field tests, in both upwind and downwind configurations of a 100 kW turbine. In similar up-flow wind conditions, the downwind configuration produced significantly more power than the upwind configuration. Local area wind pridictions were also conducted for a windfarm in a typical complex terrain; it showed that the utilized wind energy is distributed mainly at positive inclination, and that time and energy average inclinations were respectively +6.0 deg and +7.5 deg. Furthermore, 2 MW downwind-turbines were shown to produce 7.6% more annual energy in complex terrain than upwind-turbines with same dimensions.

元の言語英語
ページ(範囲)487-502
ページ数16
ジャーナルWind Engineering
30
発行部数6
DOI
出版物ステータス出版済み - 12 2006
外部発表Yes

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Turbines
Wind turbines
Wind power
Momentum

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

これを引用

Performance of downwind turbines in complex terrains. / Yoshida, Shigeo.

:: Wind Engineering, 巻 30, 番号 6, 12.2006, p. 487-502.

研究成果: ジャーナルへの寄稿記事

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