湍流风条件下多台风力机尾流干扰控制特性研究  

Research on Wake Disturbance Control Characteristics of Multiple Wind Turbines under Turbulent Wind Conditions

作　　者：田尧 高超[1,2] 王玉玲 武斌[1,2] 严日华 Yao Tian;Chao Gao;Yu-ling Wang;Bin Wu;Ri-hua Yan(Northwestern Polytechnical University,School of Aeronautics;National Key Laboratory of Aircraft Configuration Design)

机构地区：[1]西北工业大学航空学院 [2]飞行器基础布局全国重点实验室

出　　处：《风机技术》2024年第6期57-69,共13页Chinese Journal of Turbomachinery

摘　　要：风力机的尾流效应是制约风电发展的重要因素,合理的尾流控制策略可以大幅提升风电场的总出力。同时,随着风力机向大型化发展,叶片柔性增强,叶片气弹特性向着高非线性发展,以往的对风力机叶片流固耦合特性的认知已与实际情况不符。以NREL5MW风力机为研究对象,深入研究了湍流风条件下三台共轴分布大尺寸柔性风力机的尾流及流固耦合特性。在湍流风条件下,首台风力机的尾流中定向控制对下游机组性能有显著影响。首台风力机的偏航控制虽能减少其尾流速度亏损,但对第三台风力机风速的提升效果有限。而首台风力机倾斜控制不仅能提升首台风力机的尾流控制效果,减少其结构载荷,还能将此影响传递至第三台风力机。耦合偏航与倾斜控制策略可融合两者的优点。The wake effect of wind turbine is an important factor restricting the development of wind power,and a reasonable wake control strategy can be specified to significantly increase the total output of the wind farm.At the same time,with the large-scale development of wind turbines,the blade flexibility is enhanced,the blade aeroelastic characteristics develop towards high nonlinearity,and the previous knowledge of the wind turbine blade fluid-structure coupling is no longer consistent with the actual situation.Taking the NREL 5MW wind turbine as the research object,the wake and fluid-structure coupling characteristics of three large-size flexible wind turbines with co-axial distribution under turbulent wind conditions are studied.Under turbulent wind conditions,the wake redirection control of the first wind turbine has a significant effect on the performance of downstream wind turbines.Although the yaw control of the first wind turbine can reduce its wake velocity deficit,it has limited wind speed enhancement for the third wind turbine.In contrast,the tilt control not only enhances the wake control effect of the first wind turbine and reduces its structural loads,but also effects on the third wind turbine.The coupled yaw and tilt control strategy can integrate the advantages of both.

关 键 词：水平轴风力机 尾流效应 柔性叶片 气弹特性 偏航控制 倾斜控制 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]