Performance analysis and applicability evaluation of electrochemical energy storage under the high percentage of renewable energy penetration

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Energy Reports Pub Date : 2025-07-18 DOI:10.1016/j.egyr.2025.07.007

QI Guo , Junhui Li , Qiang Li , Yue Sun , Fan Li , Li Yan , Jianguo Shi , Xingxu Zhu , Cuiping Li

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引用次数: 0

Abstract

Electrochemical energy storage is considered a key solution for addressing frequency regulation in power systems with high proportions of renewable energy. However, the varying costs of different energy storage types complicate the effective evaluation of electrochemical energy storage’s role in frequency regulation, hindering its widespread adoption. Addressing this challenge, this paper proposes a comprehensive system frequency regulation control strategy from the perspective of source-load interaction. The frequency deviation signal is used to categorize regions based on deviation severity, enabling coordinated operation of frequency regulation capacity across zones. Building upon this control strategy, the paper analyzes the performance of electrochemical energy storage by factoring in electricity benefits, compensation, environmental benefits, maintenance costs, penalties, and more, creating a comprehensive economic benefit and cost model for frequency regulation. Additionally, the paper establishes performance, technical, and economic indicators for various operational conditions of electrochemical energy storage, integrating subjective and objective weighting methods to develop a comprehensive evaluation and scoring system for its applicability. Finally, the proposed strategy’s effectiveness is validated through simulations, with results indicating that lithium iron phosphate batteries achieve the highest comprehensive evaluation score among electrochemical energy storage options.

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高可再生能源渗透率下电化学储能性能分析及适用性评价

电化学储能被认为是解决高比例可再生能源电力系统频率调节问题的关键解决方案。然而，不同储能类型的成本差异使电化学储能在频率调节中的作用的有效评估复杂化，阻碍了其广泛应用。针对这一挑战，本文从源负载交互的角度提出了一种综合的系统频率调节控制策略。频率偏差信号用于根据偏差严重程度对区域进行分类，实现跨区域调频能力协同运行。在此控制策略的基础上，综合考虑电力效益、补偿、环境效益、维护成本、罚金等因素，分析了电化学储能的性能，建立了频率调节的综合经济效益和成本模型。建立了电化学储能各种运行工况的性能指标、技术指标和经济指标，结合主客观加权方法，建立了电化学储能适用性综合评价评分体系。最后，通过仿真验证了所提策略的有效性，结果表明，在电化学储能方案中，磷酸铁锂电池的综合评价得分最高。

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来源期刊

Energy Reports Energy-General Energy

CiteScore

8.20

自引率

13.50%

发文量

2608

审稿时长

38 days

期刊介绍： Energy Reports is a new online multidisciplinary open access journal which focuses on publishing new research in the area of Energy with a rapid review and publication time. Energy Reports will be open to direct submissions and also to submissions from other Elsevier Energy journals, whose Editors have determined that Energy Reports would be a better fit.