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arXiv 2108.13285stat.AP
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面向风电发电应用的多分辨率时空预测

Multi-resolution spatio-temporal prediction with application to wind power generation

Zheng Dong, Hanyu Zhang, Shixiang Zhu, Yao Xie, Pascal Van Hentenryck

AI总结:

本文提出一种基于多分辨率时空高斯过程的风速预测框架,融合不同精度和不确定性的多源预测信息,实现更准确、稳健的风速预测与不确定性量化,并在美国中西部真实风数据上验证其优于现有方法,以支持电网运行与可再生能源并网决策。

摘要:

风能正日益成为可持续电网的关键组成部分,但其固有的波动性和有限的可预测性给电网运营商带来了挑战。能源行业需要新颖的预测技术,能够精确预测可再生能源发电量,并对预测不确定性进行精确量化。这将有助于希望将可再生能源纳入电网的运营商做出充分知情的决策。本文提出了一种利用多分辨率时空高斯过程进行风速预测并进行不确定性量化的新方法。通过利用来自多个具有不同精度和不确定性的预测来源的信息,该联合框架能够提供更准确、更稳健的风速预测,同时度量这些预测中的不确定性。我们使用从美国中西部地区获取的真实风数据评估了所提出框架的有效性。结果表明,该框架使具有不同数据分辨率的预测器能够相互学习,从而提升整体预测性能。与其它最先进的方法相比,所提出的框架表现出优越的性能。本研究的目标是通过帮助系统运营商和政策制定者在能源需求管理、储能系统部署和能源供应调度方面做出更明智的决策,来改善电网运行和管理。这有望进一步促进可再生能源并入现有电力系统。

英文摘要:

Wind energy is becoming an increasingly crucial component of a sustainable grid, but its inherent variability and limited predictability present challenges for grid operators. The energy sector needs novel forecasting techniques that can precisely predict the generation of renewable power and offer precise quantification of prediction uncertainty. This will facilitate well-informed decision-making by operators who wish to integrate renewable energy into the power grid. This paper presents a novel approach to wind speed prediction with uncertainty quantification using a multi-resolution spatio-temporal Gaussian process. By leveraging information from multiple sources of predictions with varying accuracies and uncertainties, the joint framework provides a more accurate and robust prediction of wind speed while measuring the uncertainty in these predictions. We assess the effectiveness of our proposed framework using real-world wind data obtained from the Midwest region of the United States. Our results demonstrate that the framework enables predictors with varying data resolutions to learn from each other, leading to an enhancement in overall predictive performance. The proposed framework shows a superior performance compared to other state-of-the-art methods. The goal of this research is to improve grid operation and management by aiding system operators and policymakers in making better-informed decisions related to energy demand management, energy storage system deployment, and energy supply scheduling. This results in potentially further integration of renewable energy sources into the existing power systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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