基于外部关注LSTM和质量驱动损失函数的风电区间预测

Hao Quan, Wei Zhang, Tao Zhou
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引用次数: 0

摘要

风电预测的不确定性必须得到有效的限定,较高质量的预测区间(PI)才能提供更有价值的预测信息。本文提出了一种基于外部注意的长短期记忆网络(EA-LSTM)模型,并采用简化的质量驱动损失函数对模型进行训练。设计了一种新的评价指标来获得损失函数的最优参数。使用了两个15分钟时间分辨率数据集,并在案例研究中比较了两个基准模型。结果表明,该模型生成的PI覆盖概率(PICPs)总能达到PI标称覆盖率(pics),并能获得高质量的PI。EA-LSTM也被证明是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wind Power Interval Prediction Based on External Attention LSTM and Quality-Driven Loss Function
The uncertainties of the wind power forecasting should be qualified effectively, a higher quality prediction interval (PI) is able to provide more valuable forecasting information. In this paper, a new model based on external attention long short-term memory network (EA-LSTM) is proposed, and a simplified quality-driven loss function is used to train the models. A new evaluation index is designed to obtain the optimal parameters of the loss function. Two 15 minutes time resolution datasets are used and two benchmark models are compared in case studies. The results demonstrate that the PI coverage probabilities (PICPs) generated by the proposed model can always reach the PI nominal coverages (PINCs), and the high quality PIs can be obtained. The EA-LSTM is also proved to be effective.
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