Influence of atmospheric conditions on the power production of utility-scale wind turbines in yaw misalignment
Influence of atmospheric conditions on the power production of utility-scale wind turbines in yaw misalignment
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大气条件对偏航偏差情况下公用事业规模风力发电机发电的影响
DOI：
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发表时间：
2020
影响因子：
2.5
通讯作者：
J. Dabiri
中科院分区：
文献类型：
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作者：
M. Howland;C. M. González;J. Martínez;Jesús Bas Quesada;Felipe Palou Larrañaga;Neeraj K. Yadav;Jasvipul S. Chawla;J. Dabiri
在风电场中，被称为尾流转向的领先的逆风涡轮机的故意偏航不对准已被证明是风电场功率最大化的集体控制方法。最佳控制策略以及尾流转向对风力发电场功率产生的影响部分地由逆风偏航未对准风力涡轮机的功率降级决定。在大气边界层中，风速和风向可在风力涡轮机转子区域上显著变化，这取决于大气条件和稳定性，从而导致自由风力涡轮机功率产生，该功率产生作为偏航失准方向的函数是不对称的并且在昼夜循环期间变化。在这项研究中，我们提出了一个模型的风力涡轮机在偏航失准的基础上的气动叶片元素，其中包括风速和风向的影响，偏航失准的涡轮机转子面积的变化。使用多个公用事业规模的风力涡轮机进行现场实验，以表征偏航自由运行涡轮机的发电量取决于风力条件，并使用实验数据验证模型。偏航失准变速风力涡轮机的最终功率产生取决于偏航失准、大气条件和风力涡轮机控制系统之间的非线性相互作用。
The intentional yaw misalignment of leading, upwind turbines in a wind farm, termed wake steering, has demonstrated potential as a collective control approach for wind farm power maximization. The optimal control strategy, and resulting effect of wake steering on wind farm power production, are in part dictated by the power degradation of the upwind yaw misaligned wind turbines. In the atmospheric boundary layer, the wind speed and direction may vary significantly over the wind turbine rotor area, depending on atmospheric conditions and stability, resulting in freestream turbine power production which is asymmetric as a function of the direction of yaw misalignment and which varies during the diurnal cycle. In this study, we propose a model for the power production of a wind turbine in yaw misalignment based on aerodynamic blade elements which incorporates the effects of wind speed and direction changes over the turbine rotor area in yaw misalignment. A field experiment is performed using multiple utility-scale wind turbines to characterize the power production of yawed freestream operating turbines depending on the wind conditions, and the model is validated using the experimental data. The resulting power production of a yaw misaligned variable speed wind turbine depends on a nonlinear interaction between the yaw misalignment, the atmospheric conditions, and the wind turbine control system.
影响因子：
4.1
作者：
L. Zhan;S. Letizia;G. Valerio Iungo
通讯作者：
L. Zhan;S. Letizia;G. Valerio Iungo