Load equivalent tower shadow modeling for downwind turbines

Shigeo Yoshida, Soichiro Kiyoki

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

BEM (Blade Element and Momentum) theory is useful for load calculation of wind turbines, as hundreds of load cases must be calculated for aero-elastic models with controllers considered. Modeling of tower shadow effects is essential for design of downwind turbines, which are promising in complex terrains. Present study proposes a new modeling method for tower shadow effects on the basis of load equivalence. It considers aerodynamic interaction between rotor and tower and transient passing through tower wake. Those phenomena were ignored in former modeling, which are defined on the basis of wind speed profile behind isolated tower. Load equivalent model of SUBARU 80/2.0 2 MW downwind turbine was defined based on load transients calculated by wind turbine CFD in operating condition. The model was verified through field tests. Furthermore, a case study made clear that former models provide 10-30% larger fatigue loads than the present proposed load equivalent model. Present method makes downwind turbines competitive to upwind turbines.

元の言語英語
ページ(範囲)1273-1279
ページ数7
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
73
発行部数6
出版物ステータス出版済み - 6 2007
外部発表Yes

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towers
turbines
Towers
Turbines
wind turbines
Wind turbines
transient loads
momentum theory
field tests
Turbomachine blades
charge flow devices
blades
Aerodynamics
Momentum
Computational fluid dynamics
aerodynamics
wakes
Rotors
rotors
equivalence

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

これを引用

Load equivalent tower shadow modeling for downwind turbines. / Yoshida, Shigeo; Kiyoki, Soichiro.

:: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 巻 73, 番号 6, 06.2007, p. 1273-1279.

研究成果: ジャーナルへの寄稿記事

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