Modeling seasonal thermal storage dynamics in the year-round scheduling of renewable energy systems

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2024-11-21 DOI:10.1016/j.apenergy.2024.124828

Haiyang Jiang , Jiajun Luo , Yan Guo , Ershun Du , Ning Zhang , Yuchen Fang , Yating Wang , Goran Strbac

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引用次数: 0

Abstract

Seasonal thermal storage (STS) enables the long-term storage of renewable energy in heat, which could effectively address the seasonal mismatch between renewable energy supply and heat demand. This paper models the temperature distribution of the water-based STS, considering the insulating effects of the soil surrounding the tank. Considering that the commonly used state-of-charge (SOC) model could not describe the time-variant heat loss in detail in a renewable energy system scheduling problem, a temperature field correction method is proposed to correct the scheduling results. Three case studies are performed on Garver’s 6-node system and HRP-38 system to validate the proposed method’s enhanced accuracy in managing STS compared to the SOC model. The proposed method could also reduce renewable curtailment in the scheduling problem due to a more detailed description of the heat loss process and a more effective renewable energy system scheduling scheme.

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可再生能源系统全年调度中的季节性蓄热动态建模

季节性蓄热（STS）可将可再生能源长期储存在热量中，从而有效解决可再生能源供应与热量需求之间的季节性不匹配问题。考虑到水箱周围土壤的隔热效果，本文对水基 STS 的温度分布进行了建模。考虑到常用的充电状态（SOC）模型无法详细描述可再生能源系统调度问题中的时变热损失，本文提出了一种温度场修正方法来修正调度结果。在 Garver 的 6 节点系统和 HRP-38 系统上进行了三个案例研究，以验证与 SOC 模型相比，所提出的方法在管理 STS 方面具有更高的准确性。由于更详细地描述了热损耗过程和更有效的可再生能源系统调度方案，建议的方法还可以减少调度问题中的可再生能源缩减。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.