风电机组功率曲线建模是风电场性能评估与发电量预测的关键环节。然而,传统建模方法存在诸多局限。为此,笔者提出融合一阶矩与光滑样条插值的新型建模方法。通过一阶矩替代原始数据以降低噪声干扰,同时运用光滑样条插值解决功率曲线光滑性与局部特征捕捉的矛盾,并基于英国Penmanshiel风电场14台机组实测数据验证所提方法优越性。结果显示:当子区间数为200时,所提方法的RMSE和MAE平均值较Bin法分别降低8.60%和9.08%
较9阶多项式分别降低0.99%和2.91%;在高、低风速区均能紧密跟踪实际数据,跨机组误差波动显著小于传统方法。该成果为风电功率曲线建模提供高精度、高普适性的解决方案,具有重要的理论价值与实际应用意义。
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