风力机尾缘襟翼气动特性及减振性能研究

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摘要通过风洞试验研究风力机尾缘襟翼的气动特性，分析尾缘襟翼对翼型绕流的影响，得到尾缘襟翼对翼型气动参数的调节规律。尾缘襟翼具有对高频荷载敏感，响应速度快的特点，可有效补偿风力机变桨距控制的不足。设计了风力机独立变桨距与尾缘襟翼协同控制策略，独立变桨距控制环主要用于减缓低频荷载及振动，尾缘襟翼控制环主要用于减缓高频荷载及振动，并通过风力机模拟仿真分析控制策略的作用效果。研究结果表明尾缘襟翼与独立变桨距协同控制可同时减缓叶片低频和高频的荷载及振动，降载减振控制效果良好，具有较好的工程应用前景。

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	何科杉
	陈严
	漆良文
	周奇

关键词 ：风力机, 尾缘襟翼, 气动特性, 减振性能, 独立变桨距与尾缘襟翼协同控制

Abstract：The aerodynamic characteristics of trailing edge flaps were studied through wind tunnel test. The effect on airflow around the airfoil and regulation law of aerodynamic parameters by trailing edge flaps was discussed. As trailing edge flaps could fast response to wind loads, it could be used as an effectively supplementary means of individual pitch control of wind turbines. A combined pitch and trailing edge flaps control strategy was designed to mitigate fatigue loads and vibrations of wind turbines. The individual pitch control loop was mainly used to alleviate low frequency fatigue loads and vibrations, and trailing edge flap control loop was mainly used to alleviate high frequency fatigue loads and vibrations. The simulation results showed that this control strategy can effectively mitigate the low frequency and high frequency fatigue loads and vibrations of wind turbines, which has a broad prospect of engineering application.

Key words： wind turbine trailing edge flap aerodynamic characteristics vibration reduction performance coordinated control of independent variable pitch and trailing edge flap

收稿日期: 2019-12-11 出版日期: 2021-08-15

引用本文:

何科杉，陈严，漆良文，周奇. 风力机尾缘襟翼气动特性及减振性能研究[J]. 振动与冲击, 2021, 40(15): 198-206.
HE Keshan, CHEN Yan, QI Liangwen, ZHOU Qi. Aerodynamic characteristics and vibration reduction performance of trailing edge flap of wind turbine. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(15): 198-206.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2021/V40/I15/198

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