Enhancing grid stability in PV systems: A novel ramp rate control method utilizing PV cooling technology

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2024-11-01 DOI:10.1016/j.apenergy.2024.124737

Koki Iwabuchi , Daichi Watari , Dafang Zhao , Ittetsu Taniguchi , Francky Catthoor , Takao Onoye

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引用次数: 0

Abstract

Rapid fluctuations in solar irradiation lead to significant variability in PV power output. Traditional ramp rate control methods use battery energy storage systems to smooth power outputs and provide a more consistent supply to the grid. However, these methods require high initial costs and substantial maintenance. In this study, we propose a novel method for controlling PV power output ramp rates using cooling technology, which is essential to stabilize grid operations and ancillary services. The proposed method adjusts power generation efficiency in real-time by controlling PV panel temperature, leveraging their thermoelectric properties. The effectiveness of our method was validated by simulation based on real-world data, which showed reductions in mean and maximum ramp rates of 43.5% and 76.2%, respectively, compared to traditional battery storage solutions. Notably, these improvements were achieved with a cooling unit having a coefficient of performance of less than 10 and a minimal battery capacity of 20 kWh, highlighting the efficiency of the method and its potential to significantly lower system costs and environmental impacts compared to traditional control strategies.

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增强光伏系统的电网稳定性：利用光伏冷却技术的新型斜率控制方法

太阳辐照的快速波动会导致光伏发电输出的显著变化。传统的斜率控制方法使用电池储能系统来平滑电力输出，为电网提供更稳定的电力供应。然而，这些方法需要高昂的初始成本和大量的维护工作。在本研究中，我们提出了一种利用冷却技术控制光伏发电输出斜率的新方法，这对稳定电网运行和辅助服务至关重要。所提出的方法利用光伏板的热电特性，通过控制光伏板的温度来实时调整发电效率。与传统的电池储能解决方案相比，我们的方法平均和最大斜率分别降低了 43.5% 和 76.2%。值得注意的是，这些改进是在冷却装置的性能系数小于 10 和最小电池容量为 20 千瓦时的情况下实现的，这凸显了该方法的效率及其与传统控制策略相比显著降低系统成本和环境影响的潜力。

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.