上游风电机组尾迹影响分析  

Analysis on Wake Effect of Upstream Wind Turbine

作　　者：王四季[1] 廖明夫[1] 康刘宏 吕品[1] 

机构地区：[1]西北工业大学旋转机械与风能装置测控研究所,西安710072

出　　处：《机械科学与技术》2018年第2期165-171,共7页Mechanical Science and Technology for Aerospace Engineering

摘　　要：上游风电机组的尾迹对下游风电机组会产生较为明显的影响。该文基于自由涡尾迹方法,结合几何精确梁方法,分析了上下游风电机组的耦合响应。分析结果显示,即使是在6倍叶轮直径处,下游风电机组仍然受到上游尾迹影响,叶轮功率会大幅下降,而叶片载荷波动会大幅上升。而将叶轮偏置一个叶轮直径后,并不能明显地降低上游尾迹影响。The wind turbines in the wind farm are easy to be affected by wakes of upstream wind turbines. In this study, a FSI model based on nonlinear geometrically exact beam （GEB） and a free-vortex wake （FVW） model are applied to study coupled responses under wake effect. As a result, to the downstream wind turbine, the rotor power will decrease and while the load fluctuation of rotor blades will increase, even when the distance between upstream and downstream wind turbines is 6 rotor diameters. After one rotor diameter offset, the load fluctuation cannot decrease significantly.

关 键 词：风力发电 自由涡尾迹 上游风机 尾迹影响 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]