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

基本信息

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

项目摘要

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.

新发现的垂直轴风力涡轮机（VAWT）的优势是，它们的转子可以靠近在一起而不会显着损失效率。实验结果表明，涡轮机的距离为4个转子直径的距离和孤立的涡轮机的性能和孤立的涡轮机一样。由多个VAWT组成的风电场的功率应显着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），但是需要改进CFD的当前状态以达到所需的准确性和合理的计算时间以模拟多个VAWT。作者的初步分析还显示，面向风向的三个涡轮机的功率系数增加，但是影响功率增加的参数仍有待确定。该提案中描述的研究计划将开发出一种准确且快速的CFD模拟工具来研究多个VAWT相互作用。需要此仿真工具来证明和量化在近距离近距离使用多个VAWT的好处。对与密切包装的VAWT有关的现象的理解可能会导致风能行业的革命，因为风电场的能源提取物可以大大增加。该研究计划将通过在CFD和Wind Energy领域培训两名博士生和三名硕士学生来做出贡献。