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arXiv 2303.06010cs.LG
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面向广义太阳辐照度预测的局部-全局方法

Local-Global Methods for Generalised Solar Irradiance Forecasting

University of Nottingham(诺丁汉大学);University of Granada(格拉纳达大学)

Timothy Cargan, Dario Landa-Silva, Isaac Triguero

AI总结:

本文提出用全局方法训练太阳辐照度预测模型,使其无需目标位置历史数据即可对新地点进行预测,并证明单一全局模型在多地点上比局部模型更稳健准确。

摘要:

随着太阳能使用的增加,拥有准确且及时的预测对于电网运营商的平稳运行至关重要。目前已有许多用于预测太阳辐照度/太阳能发电量的方法。然而,其中许多方法将问题表述为时间序列问题,依赖于近乎实时地获取目标位置的观测数据来生成预测。这既需要访问实时数据流,也需要足够的历史观测数据才能部署这些方法。在本文中,我们提出使用全局方法来以泛化的方式训练模型,使其能够为未见过的位置生成预测。我们将该方法应用于经典机器学习和最先进的方法。利用分布在英国各地的20个位置的数据以及广泛可用的天气数据,我们表明构建不需要访问这些数据的系统是可能的。我们利用并比较了卫星观测和地面观测(例如温度、气压)的天气数据。通过利用其他位置的天气观测和测量数据,我们表明可以创建能够在新位置准确预测太阳辐照度的模型。这有助于新部署的太阳能发电场和家庭设施从上线之时起就进行使用规划和优化。此外,我们表明,为多个位置训练单个全局模型可以产生更稳健的模型,在不同位置之间获得更一致且更准确的结果。

英文摘要:

As the use of solar power increases, having accurate and timely forecasts will be essential for smooth grid operators. There are many proposed methods for forecasting solar irradiance / solar power production. However, many of these methods formulate the problem as a time-series, relying on near real-time access to observations at the location of interest to generate forecasts. This requires both access to a real-time stream of data and enough historical observations for these methods to be deployed. In this paper, we propose the use of Global methods to train our models in a generalised way, enabling them to generate forecasts for unseen locations. We apply this approach to both classical ML and state of the art methods. Using data from 20 locations distributed throughout the UK and widely available weather data, we show that it is possible to build systems that do not require access to this data. We utilise and compare both satellite and ground observations (e.g. temperature, pressure) of weather data. Leveraging weather observations and measurements from other locations we show it is possible to create models capable of accurately forecasting solar irradiance at new locations. This could facilitate use planning and optimisation for both newly deployed solar farms and domestic installations from the moment they come online. Additionally, we show that training a single global model for multiple locations can produce a more robust model with more consistent and accurate results across locations.

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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