A method for evaluating surface solar radiation based on off-line reinforcement learning for non-measurable areas

By combining offline reinforcement learning and adaptive conservative Q-learning algorithms with multi-source data and uncertainty assessment, the problems of data missingness and distribution out-generalization in the assessment of surface solar radiation in unmeasured areas are solved, achieving high-precision and robust assessment results.

CN122416293APending Publication Date: 2026-07-17INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for assessing surface solar radiation suffer from data gaps and out-of-distribution generalization in areas without measurement, making it difficult to maintain a balance between assessment accuracy and robustness without online interaction with the real environment.

Method used

An offline reinforcement learning method is adopted. By constructing feature vectors of multi-source satellite data and ground meteorological elements, a policy network is trained to learn fusion weights. Combined with an adaptive conservative Q-learning algorithm, the conservatism is dynamically adjusted to construct a robust decision-making mechanism, and an uncertainty assessment mechanism is introduced.

Benefits of technology

High-precision assessment of surface solar radiation was achieved in areas without measurement capabilities, reducing the risk of overestimation, improving the model's adaptability and robustness, and forming a complete engineering closed-loop process applicable to photovoltaic power generation assessment and power dispatch.

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Abstract

本发明涉及太阳辐射评估技术领域,尤其涉及一种面向无量测区域离线强化学习的地表太阳辐射评估方法。其技术方案包括以下步骤:数据获取,获取覆盖目标区域的卫星遥感数据及地面气象要素数据,并进行时空配准,形成多源输入数据;特征构建,基于所述多源输入数据构建特征向量,作为状态空间;候选预测,在有量测区域内,利用所述状态空间和地表太阳辐射观测值,训练多个监督学习模型,作为候选预测模型。本发明通过离线强化学习与自适应保守度机制的有机结合,有效解决了无量测区域地表太阳辐射评估的分布外泛化难题,在多源数据融合、精度与鲁棒性平衡、工程化实施及不确定性量化等方面均取得了优于现有技术的显著效果。
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