Research on Liquid-cooling Li-ion Battery Energy Storage System in High Frequency Regulation Application

LEI Bo; WU Yue; SHI Youjie; CAO Wenjiong; WANG Yiwei; JIANG Fangming

doi:10.14044/j.1674-1757.pcrpc.2024.03.020

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Research on Liquid-cooling Li-ion Battery Energy Storage System in High Frequency Regulation Application

Application Technology in the Field of Clean Energy | 更新时间：2024-09-14

- Research on Liquid-cooling Li-ion Battery Energy Storage System in High Frequency Regulation Application
- Power Capacitor & Reactive Power Compensation Vol. 45, Issue 3, Pages: 159-166(2024)
- 作者机构：
  
  1.直流输电技术国家重点实验室（南方电网科学研究院有限责任公司），广州　 510663
  2.中国科学院广州能源研究所，广州　 510640
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2024.03.020
  CLC：
- Published：2024-06，
  
  Received：18 November 2023，
- 稿件说明：
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LEI BO, WU YUE, SHI YOUJIE, et al. Research on Liquid-cooling Li-ion Battery Energy Storage System in High Frequency Regulation Application. [J]. Power capacitor & reactive power compensation, 2024, 45(3): 159-166.
DOI：

LEI BO, WU YUE, SHI YOUJIE, et al. Research on Liquid-cooling Li-ion Battery Energy Storage System in High Frequency Regulation Application. [J]. Power capacitor & reactive power compensation, 2024, 45(3): 159-166. DOI： 10.14044/j.1674-1757.pcrpc.2024.03.020.

摘要

针对风光能源规模化接入电网造成的频率波动问题，提出了结合功率型锂电池及液冷式热管理的储能系统。基于实验测试获取了功率型锂电池的电热特性，结果表明高倍率工况下仅依靠自然对流散热不能满足电池合理工作温度需求。建立了液冷式热管理系统及其仿真模型，并通过数值仿真对4C倍率放电、不同流量以及实际AGC调频工况条件下系统热管理性能及电池热行为进行了分析。研究表明实际AGC调频工况下，电池间温差小于2℃，最高温度小于33℃，证明了液冷式热管理方案能够实现储能系统在高倍率调频工况下的长期稳定运行。

Abstract

Aiming at the frequency fluctuation due to the massive access of wind and solar energy to the grid

an energy storage system combining power-type lithium battery and liquid cooling thermal management is proposed. The electrical and thermal characteristics of the power type lithium battery are obtained based on the experimental tests. The results show that only with the natural convection heat dissipation cannot meet the proper operating temperature of the battery under high rate conditions. The liquid cooling thermal management system and its simulation model are set up. By numerical simulation

the thermal management performance of the system and the thermal behavior of the battery are analyzed under 4C rate discharge

different flow rates and actual AGC frequency regulation conditions. The research shows that the temperature difference between batteries is less than 2℃ and the maximum temperature is less than 33℃ under the actual AGC frequency regulation condition. It proves that the liquid-cooled thermal management scheme can realize the long-term stable operation of the energy storage system under high rate frequency regulation conditions.

关键词

锂电池储能系统液冷热管理调频

Keywords

lithium ion batteryenergy storage systemliquid cooling thermal managementfrequency regulation

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