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葉片數(shù)對VAWT-SWS低風(fēng)速自起動(dòng)性能的影響
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國家自然科學(xué)基金資助項(xiàng)目（51175104）


Effects of Blade Number on Self-starting Performance of Vertical Axis Wind Turbine with Self-adapting Wind Speed under Low Wind Speed
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    摘要:

    為探明葉片數(shù)對自適應(yīng)風(fēng)速垂直軸風(fēng)力機(jī)（VAWT-SWS）自起動(dòng)性能的影響，設(shè)計(jì)了可更換葉片個(gè)數(shù)（2，3，4）的風(fēng)力機(jī)模型，通過風(fēng)洞實(shí)驗(yàn)獲得了3m/s風(fēng)速下風(fēng)力機(jī)的靜態(tài)轉(zhuǎn)矩系數(shù)隨方位角變化曲線，并與相同參數(shù)的Darrieus直葉片風(fēng)力機(jī)（D-風(fēng)力機(jī)）進(jìn)行了對比。之后使自適應(yīng)風(fēng)速垂直軸風(fēng)力機(jī)空載，得到了3m/s風(fēng)速下其轉(zhuǎn)速隨時(shí)間變化曲線。實(shí)驗(yàn)結(jié)果表明：自適應(yīng)風(fēng)速垂直軸風(fēng)力機(jī)的自起動(dòng)性能優(yōu)于Darrieus直葉片風(fēng)力機(jī)，增加葉片數(shù)可使自適應(yīng)風(fēng)速垂直軸風(fēng)力機(jī)的靜態(tài)自起動(dòng)性能提高，但使動(dòng)態(tài)自起動(dòng)性能降低。

    Abstract:

    With the aim to investigate the influences of blade number on the self-starting performance of vertical axis wind turbine with self-adapting wind speed (VAWT-SWS), a prototype which could change the number of blades (2,3,4) was designed. Through the wind tunnel experiment the static torque coefficient curve with azimuth angle at a wind speed of 3m/s was obtained, and compared experiments were done on Darrieus straight-bladed wind turbine with the same parameters. Then the load of VAWT-SWS was released, and rotation speed curve of VAWT-SWS changing with time at 3m/s was gotten. The experimental results showed that the self-starting performance of VAWT-SWS was superior to that of Darrieus straight-bladed wind turbine; the increase of blade number could improve the static self-starting performance of VAWT-SWS, but degraded the dynamic self-starting performance.

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曲建俊,許明偉,梅 毅,李 巖.葉片數(shù)對VAWT-SWS低風(fēng)速自起動(dòng)性能的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2014,45(5):173-178. Qu Jianjun, Xu Mingwei, Mei Yi,Li Yan. Effects of Blade Number on Self-starting Performance of Vertical Axis Wind Turbine with Self-adapting Wind Speed under Low Wind Speed[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(5):173-178.

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  • 收稿日期:2013-05-14
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  • 在線發(fā)布日期: 2014-05-10
  • 出版日期: 2014-05-10