风力机尾缘襟翼气动特性及减振性能研究  

Aerodynamic characteristics and vibration reduction performance of trailing edge flap of wind turbine

作　　者：何科杉[1,2,3] 陈严 漆良文[1] 周奇 HE Keshan;CHEN Yan;QI Liangwen;ZHOU Qi(Engineering College,Shantou University,Shantou 515063,China;Key Laboratory of structure and Wind Tunnel of Guangdong Higher Education Institutes,Shantou 515063,China;Department of Mechatronics Engineering,Shantou Polytechnic,Shantou 515078,China)

机构地区：[1]汕头大学工学院,广东汕头515063 [2]广东省高等学校结构与风洞重点实验室,广东汕头515063 [3]汕头职业技术学院机电工程系,广东汕头515078

出　　处：《振动与冲击》2021年第15期198-206,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(51976113);广东省科技创新战略专项(2018-16);广东省应用型科技研发专项(2015B020240003)。

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。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.

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 

分 类 号：TH113.1[机械工程—机械设计及理论] TK83[动力工程及工程热物理—流体机械及工程]