Studies on Vertical Axis Wind Turbines Technologies

将研究Darrieus型垂直轴风力涡轮机（VAWT）单独和风电场结构中的气动弹性和气动声学行为。Darrieus风力涡轮机在20世纪70年代很常见，但由于过度振动的问题而逐渐淘汰。“智能”控制系统和叶片变桨控制的进步，以抑制振动和复合材料叶片结构的出现，使这种概念设计重新焕发了活力。此外，在更深的水域建造海上风电场以最大限度地减少人口密集地区附近不可避免的视觉和噪音污染的必要性促使该行业考虑浮动风力涡轮机。水平轴风力涡轮机由于其固有的稳定性问题而不适合浮式安装。

The aeroelastic and aero-acoustic behaviour of Darrieus-type vertical axis wind turbines (VAWT) individually and in wind farm formations will be investigated. Darrieus wind turbines were common in the 1970's but they were phase out due to problems with excessive vibrations. Advances in "smart" control systems and blade pitch control to suppress vibrations and the advent of composite blade structures have revitalized this conceptual design nowadays. In addition, the necessity of building offshore wind farms in deeper water to minimize the unavoidable visual and noise pollution near populated areas have pushed the industry to consider floating wind turbines. Horizontal axis wind turbines are not appropriate to floating installations due to its inherent stability problems.