摘要
为了提高风力机的利用效率,优化风电场布局,利用实测以及基于致动盘的数值模拟方法,对风电场中多台串列布置的风力机的尾流进行研究,获得尾流的速度场、压力场及各台风力机功率的分布规律.结果表明:致动盘模型能很好地模拟上下游风力机之间功率的损失,但获得的功率小于风电场的实际数据;上下游之间风力机的功率损失达到35%左右,然而随着尾流向下游发展,对下风向风力机功率的影响减弱;风电场排布设计时应避免将风力机串列布置在常年盛行风方向.
For the improvement on utilization efficiency of the wind turbines and optimization of wind farm layout, the measurement data in wind farms and numerical simulation results obtained with actuator disk model are used to study the wakes of co-axially arranged turbines. The distribution pattern of velocity field, and pressure field in the wakes and that of power of the turbine are obtained. It turns out that the actuator disk model is able to simulate well the power loss between upstream and downstream turbines. However the power of turbine obtained with actuator disk model will be less than the actual data measured in wind farm. The power loss between upstream and downstream turbines amounts to about 35 %. Never theless, the impact of wake on power of downstream turbine will become weak with downward progress of the wake. The co-axial arrangement of wind turbines should be avoided in the prevailing wind direction when designing the layout of wind farm.
出处
《兰州理工大学学报》
CAS
北大核心
2016年第1期66-69,共4页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(11162009)
关键词
风力机
致动盘
尾流场
数值模拟
wind turbine
actuator disc
wake flow field
numerical simulation
