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Method of controlling aerodynamic load of a wind turbine based on local blade flow measurement

机译:基于局部叶片流量测量的风力涡轮机气动负荷控制方法

摘要

The present invention relates to a method of controlling the aerodynamic load of a wind turbine's blades individually in such a way that the dynamic aerodynamic loads on the turbine are reduced and power production is optimised. In general the present invention will improve the overall stability of the turbine leading to reduce fatigue loads, reduced extreme loads during operation and reduced risk of blade-tower interaction. In particular preferred embodiment of the invention, flow properties are measured locally on the different blades or in front of the blades and from these measurements the pitch angle settings are changed, in other ways changing the aerodynamic properties, for the blades through a control unit.
机译:用于控制风力涡轮机叶片的空气动力学负荷的方法技术领域本发明涉及一种单独控制风力涡轮机叶片的空气动力学负荷的方法,以使得减小涡轮机上的空气动力学负荷并优化发电量。总的来说,本发明将改善涡轮机的整体稳定性,从而降低疲劳载荷,降低运行中的极限载荷并降低叶片-塔架相互作用的风险。在本发明的特别优选的实施方式中,在不同的叶片上或在叶片的前面局部地测量流动特性,并且根据这些测量,通过控制单元改变叶片的桨距角设定,以其他方式改变空气动力学特性。

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