Analysis for Safe Region of SOC for Prefabricated Cabin Energy Storage System

doi:10.16628/j.cnki.2095-8188.2021.04.014

Abstract

Abstract:

The data of charge and discharge of lithium iron phosphate cell,module and battery cluster are discussed and analyzed.The safe region of state of charge (SOC) for the energy storage system of lithium iron phosphate prefabricated cabin is the slow region of the maximum voltage difference during charging and discharging,and it coincides with the slow region of the voltage change of a battery.It provides the basis for the safety operation of the prefabricated cabin energy storage system.

Key words: battery cluster, energy storage system, maximum voltage difference, SOC

CLC Number:

TM912

LI Juan, ZHANG Liuli, TIAN Gangling, RUAN Peng. Analysis for Safe Region of SOC for Prefabricated Cabin Energy Storage System[J]. LOW VOLTAGE APPARATUS, 2021, 0(4): 77-80.

Figures/Tables 8

References 10

[1]	张福生. 磷酸铁锂电池工业应用领域浅析[J]. 化工管理, 2018(34):90-91.
[2]	陈昆灿. 电网侧电化学储能电站规模配置研究[J]. 国网技术学院学报, 2019,22(4):25-28.
[3]	李建林, 徐少华, 靳文涛. 我国电网侧典型兆瓦级大型储能电站概况综述[J]. 电器与能效管理技术, 2017(13):1-7.
[4]	吴洲铁. HEV锂离子电池组管理关键技术研究[D]. 武汉:华中科技大学, 2010.
[5]	叶佳娜. 锂离子电池过充电和过放电条件下热失控(失效)特性及机制研究[D]. 合肥:中国科学技术大学, 2017.
[6]	杨代铭, 李相俊, 陆超. 磷酸铁锂电池工作区间的优化与应用[J]. 电器与能效管理技术, 2014(10):60-65.
[7]	汪涣伶, 侯朝勇, 贾学翠. 电化学储能电池荷电状态估算技术对比分析[J]. 电器与能效管理技术, 2017(5):76-83.
[8]	赵静, 万瑞妮, 郭敏, 等. 电池储能系统在并网风电场运行中的协调控制研究[J]. 电器与能效管理技术, 2020(10):71-76.
[9]	周喜超, 洪育金, 夏岩, 等. 基于多智能体的电池储能系统SOC均衡控制策略[J]. 浙江电力, 2020,39(5):35-40.
[10]	吴仁光, 郑立, 等. 面向综合能源配电网的储能系统优化配置方法[J]. 广东电力, 2020,33(3):42-50.

项目	组成	最低电压/V	最高电压/V	额定电压/V	容量/Ah	能量/kWh	数量/个
电芯	—	2.5	3.6	3.2	90	0.29	3 840
电池模组	24S2P	60.0	87.8	76.8	180	13.82	80
电池簇	240S2P	600.0	878.0	768.0	180	138.24	8
储能系统	240S16P	600.0	878.0	768.0	1 440	1 105.92	1

电芯电池编号	充电后期du/dt≥ 0.1 mV/s时刻
电芯电池编号	电压u/V	SOC/%	电压u/V	SOC/%
1	3.460	90	3.094	11
2	3.462	90	3.089	10
3	3.461	90	3.094	11
4	3 453	88	3.092	11

[1]	LI Feng. Cascade Utilization Battery Energy Storage System Architecture and Control Strategy [J]. LOW VOLTAGE APPARATUS, 2021, 0(4): 81-84.
[2]	KONG Yukai, WEN Buying, ZHU Zhenshan, TANG Yuchen. Coordinated Optimization for Day-Ahead and Intra-Day Opertation of Island Micro-Grid Considering Energy Storage [J]. LOW VOLTAGE APPARATUS, 2021, 0(2): 65-74.
[3]	XIE Zhijia, WANG Jiarui, LI Dexin, MENG Tao. Economy Evaluation of Energy Storage System Participating in Power System Frequency Modulation [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 14-20.
[4]	RAO Yufei, CAO Xiaolu, YANG Haijing, HE Ping, LI Zhao, MA Tao. Research on Impact of Energy Storage System on Small Signal Stability of Power System [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 35-43.
[5]	LI Wenqi, GAO Dongxue, LI Zhaohui, RAO Yufei, GU Bo. Forecast and Uncertainty Analysis of Lithium-ion Batteries SOC Based on LSTM-NPKDE [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 44-50.
[6]	PENG Xiangyuan, TANG Chuanyu, SUN Jinlei, LIU Zhao. Research on SOC Estimation Method of Lithium Battery Based on Extended Kalman Filter and Capacity Calibration [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 51-56.
[7]	XUE Zhong, DONG Bei, DING Yi, ZHANG Yao. Monitoring and Management Technical Research for Battery Energy Storage [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 91-95.
[8]	LI Dexin, WANG Jiarui, ZHANG Jiajun. Research on Demand of Photovoltaic Energy Storage System for Reducing Abandonment Rate [J]. LOW VOLTAGE APPARATUS, 2020, 0(10): 36-40.
[9]	ZHAO Jing, WAN Ruini, GUO Min, ZHU Yue. Study on Coordinated Control of Battery Energy Storage System in Wind Farms Connected to Power Grid [J]. LOW VOLTAGE APPARATUS, 2020, 0(10): 71-76.
[10]	WANG Junjie, SUN Jia, XU Meng, ZHANG Jinyi, GUO Xiaoyu, ZHANG Guoqiang. Research on Capacity Design of Power-Side Energy Storage Participating in Grid Frequency Modulation [J]. LOW VOLTAGE APPARATUS, 2020, 0(10): 84-89.
[11]	LI Wenqi, GAO Dongxue, LI Zhaohui, RAO Yufei, SUN Xin. Research on Double-Layer Power Distribution Strategy Based on All-Vanadium Flow Battery Multi-Energy Storage Module [J]. LOW VOLTAGE APPARATUS, 2020, 0(10): 98-106.