摘要
垂直轴阻力型风力机可用于风力发电及风速测量,在实际应用中较精确计算风力机功率对进行风能利用评价和风力机结构设计都是至关重要的。本研究通过风力机叶片受力情况分析,给出了风力计算公式和平均功率计算公式,运用Matlab工具具体计算了一小型风力机实例,初步分析了功率与风速、叶片阻力系数等关系,得出了相应的阻力型风力机叶尖速比。分析表明垂直轴阻力型风力机的风能利用率不高,但结构简单、适应性较强。
The may use in the wind power generation and the wind speed survey, the precise computation of the turbine power carries on the importance in the practical application of wind energy using and the turbine structural design. With analysis of the blade stress situation, this article presents the formula of force and the average power, then calculates a small drag-type vertical axis wind turbine example specifically using Matlab, and analysis preliminarily the relations of power and wind speed or blade friction coefficient. The analysis indicated that the drag-type vertical axis wind turbine＇s wind energy use factor is not high, but the structure is simple and the compatibility is strong.
出处
《机械》
2008年第11期20-21,24,共3页
Machinery
基金
宁波市自然基金(2007A610009)
关键词
垂直轴
风力机
阻力型
功率
vertical axis
wind turbine
drag-type
power
