JP4451729B2 - 水平軸風車 - Google Patents
水平軸風車 Download PDFInfo
- Publication number
- JP4451729B2 JP4451729B2 JP2004182382A JP2004182382A JP4451729B2 JP 4451729 B2 JP4451729 B2 JP 4451729B2 JP 2004182382 A JP2004182382 A JP 2004182382A JP 2004182382 A JP2004182382 A JP 2004182382A JP 4451729 B2 JP4451729 B2 JP 4451729B2
- Authority
- JP
- Japan
- Prior art keywords
- tower
- rotor
- horizontal axis
- wind turbine
- frequency noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Wind Motors (AREA)
Description
騒音対策対象地点方向と略直交する前記タワーの外周位置に、前記タワー近傍を経由して前記ロータに向うタワー後流を調整するための渦生成部材を設けたことにより、タワー後流の速度分布が均一化され、低周波騒音の発生要因である、タワー後流とロータの回転面との空力干渉が低減され、低周波騒音の影響範囲が大幅に縮小される。
2 タワー
3 ナセル
4 回転軸
5 ロータ
6 ブレード
7 ハブ
10 渦生成部材
A 低周波騒音影響領域
B 特定領域
Claims (2)
- 複数枚のブレードをハブから放射状に突設されたロータと、回転軸を介して前記ロータを軸支するナセルと、前記ロータよりも風上側で前記ナセルを軸支するモノポール式のタワーとを有する水平軸風車において、前記タワーの外周位置であって、騒音対策対象地点方向と略直交する方向の面上に、前記タワー外周に沿って前記ロータに向う気流に縦渦を発生させることにより、タワー後流とその外部との風速差を低減させるための渦生成部材を備えていることを特徴とする水平軸風車。
- 前記渦生成部材は、前記ロータ回転面の最下端高さ位置から、前記タワー頂部近傍ないし両者の間にわたって設けられていることを特徴とする、請求項1に記載の水平軸風車。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004182382A JP4451729B2 (ja) | 2004-06-21 | 2004-06-21 | 水平軸風車 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004182382A JP4451729B2 (ja) | 2004-06-21 | 2004-06-21 | 水平軸風車 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006002726A JP2006002726A (ja) | 2006-01-05 |
JP4451729B2 true JP4451729B2 (ja) | 2010-04-14 |
Family
ID=35771319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004182382A Expired - Fee Related JP4451729B2 (ja) | 2004-06-21 | 2004-06-21 | 水平軸風車 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4451729B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2466209A (en) * | 2008-12-11 | 2010-06-16 | Vestas Wind Sys As | Wind turbine wake expansion device |
AU2011366415A1 (en) | 2011-04-25 | 2013-11-14 | Hitachi, Ltd. | Wind power generation system, device using wind power generation system, and method for operating same |
-
2004
- 2004-06-21 JP JP2004182382A patent/JP4451729B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2006002726A (ja) | 2006-01-05 |
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