Achieving high energy extraction with multiple vertical axis wind turbines

利用多个垂直轴风力涡轮机实现高能量提取

• 批准号: 203454-2012
• 负责人: Paraschivoiu, Marius
• 金额: $ 1.89万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=546347
• 关键词: Achieving; energy; extraction; multiple; vertical

A newly discovered advantage of vertical axis wind turbines (VAWT) is that their rotors can be placed close together without significant loss of efficiency. Experimental results indicate that turbines separated by a distance of 4 rotor diameters perform as well as isolated turbines. The power extraction of a wind farm composed of multiple VAWT should be significantly higher than the existing wind farms exploiting horizontal axis wind turbines (HAWT). To further demonstrate this concept, computational fluid dynamics (CFD) can be utilized but the current state of CFD needs to be improved to achieve the required accuracy and reasonable computing time to simulate multiple VAWT. An initial analysis by the author has also shown an increase of the power coefficient for three turbines facing the wind direction, nevertheless the parameters that affect the increase in power remain to be determined. The research program described in this proposal will develop an accurate and fast CFD simulation tool to study multiple VAWT interaction. This simulation tool is needed to demonstrate and to quantify the benefit of using multiple VAWT in close proximity. The understanding of the phenomena related to closely packed VAWT can lead to a revolution in the wind energy industry because energy extract from wind farms can be significantly increased. This research program will contribute by training two PhD students and three master students in the field of CFD and wind energy.

垂直轴风力涡轮机（VAWT）的一个新发现的优点是，它们的转子可以放置在一起，而没有显着的效率损失。实验结果表明，由4个转子直径的距离分开的涡轮机执行以及孤立的涡轮机。由多个VAWT组成的风电场的功率提取应显著高于利用水平轴风力涡轮机（HAWT）的现有风电场。为了进一步证明这一概念，可以利用计算流体动力学（CFD），但需要改进CFD的当前状态，以达到模拟多个VAWT所需的精度和合理的计算时间。作者的初步分析也表明，三个面向风向的涡轮机的功率系数增加，但影响功率增加的参数仍有待确定。 本建议书中所描述的研究计划将开发一个准确、快速的CFD模拟工具，以研究多个VAWT相互作用。这个模拟工具是需要证明和量化的好处，使用多个VAWT在接近。对与紧密堆积的VAWT相关的现象的理解可以导致风能行业的革命，因为可以显着增加从风电场提取的能量。该研究计划将通过培养两名CFD和风能领域的博士生和三名硕士生做出贡献。