Effects of blade number on self-starting performance of vertical axis wind turbine with self-adapting wind speed under low wind speed

被引：0

作者：

机构：

[1] Qu, Jianjun

[2] Xu, Mingwei

[3] Mei, Yi

[4] Li, Yan

来源：

Qu, J. (qujianjun@hit.edu.cn) | 1600年 / Chinese Society of Agricultural Machinery卷 / 45期

关键词：

Azimuth angles - Low wind speed - Rotation speed - Self-starting - Straight-bladed - Vertical axis wind turbines - Wind speed - Wind tunnel experiment;

D O I：

10.6041/j.issn.1000-1298.2014.05.027

中图分类号：

学科分类号：

摘要：

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 3 m/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 3 m/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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