印四华, 杨碧霞, 朱成就, 等. 考虑不同约束区间的风电场布局分级优化[J]. 空气动力学学报, 2021, 39(s): 1−8. doi: 10.3390/en6105297
引用本文: 印四华, 杨碧霞, 朱成就, 等. 考虑不同约束区间的风电场布局分级优化[J]. 空气动力学学报, 2021, 39(s): 1−8. doi: 10.3390/en6105297
YIN S H, YANG B X, ZHU C J, et al. Hierarchical wind farm layout optimization considering different constraint conditions[J]. Acta Aerodynamica Sinica, 2021, 39(s): 1−8. doi: 10.3390/en6105297
Citation: YIN S H, YANG B X, ZHU C J, et al. Hierarchical wind farm layout optimization considering different constraint conditions[J]. Acta Aerodynamica Sinica, 2021, 39(s): 1−8. doi: 10.3390/en6105297

考虑不同约束区间的风电场布局分级优化

Hierarchical wind farm layout optimization considering different constraint conditions

  • 摘要: 由于目前风电场布局优化尾流模型预测精度低以及不同约束区间对优化结果的影响,以至于不能准确预测风机安装台数和最大限度降低度电成本。因此,本文基于改进三维尾流模型,考虑不同约束区间,采用分级优化策略对2 km × 2 km风电场进行精确布局优化。首先,利用网格法对风电场进行第一阶优化;其次,考虑不同约束区间采用坐标法对第一级优化结果进行第二阶优化。研究表明:与Jensen尾流模型相比,改进后的三维尾流模型可以更合理地优化风电场布局;考虑收敛速度及度电成本,当约束区域为 \textlimit = 150\;\textm \textlimit = 200\;\textm 时,第二阶算法迭代速度较快,优化后其度电成本为0.8498/W,相比第一阶优化结果,降低了3.33%。

     

    Abstract: Low prediction accuracy of wake model for wind farm layout and the impact of different constraint regions on the optimization results hinder the accurate prediction of the wind turbine number and minimize the energy cost. Based on an improved 3-D wake model, a 2 km × 2 km wind farm layout is optimized using a hierarchical optimization strategy by taking different constraint conditions into account. The coordinate method is used to perform the second-order optimization on the first-order optimization results obtained by the grid method. It is shown that compared to the Jensen wake model, an improved 3D wake model is more reasonable to optimize the wind farm layout. Considering the convergence speed and the power cost, when the constraint interval is \textlimit = 150\;\textm and \textlimit = 200\;\textm , the second-order algorithm has a faster iterative speed, and the power cost is 0.8498/W, which is 3.33% lower than the first-order optimization. The optimized layout shield light on the wind turbines installation.

     

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