基于锂离子电池电化学机理特性的电气等值模型研究
Electrical Equivalence Model Research Based on Electrochemical Mechanism Characteristics of Lithium-ion Battery
赵冬梅 1裴建楠 1刘崇茹 1徐辰宇 1宋晨铭1
作者信息
- 1. 华北电力大学电气与电子工程学院,北京市 昌平区 102206
- 折叠
摘要
为更准确地表征低倍率充放电工况下电池内外部的动态状况,该文根据锂离子电池电化学原理推导出一种机理电气等值模型,明确机理电气等值模型相关电气元件参数的计算方法,揭示其与锂离子电池电化学参数之间的关联.所提机理电气等值模型兼具锂离子电化学模型的精度以及常规经验等效电路模型在储能控制参数整定、大规模储能电站等效建模方面便捷性的优势,更适用于新型电力系统场景下的储能电站建模、仿真、参数整定及安全监测.
Abstract
To characterize the internal and external dynamic conditions of lithium-ion batteries under low-rate charging and discharging conditions more accurately,this paper derives a mechanism electrical equivalent model based on the electrochemical principles of lithium-ion batteries.It clarifies the calculation methods for related electrical component parameters of the mechanism electrical equivalent model,revealing the correlation between them and lithium-ion battery electrochemical parameters.The proposed mechanism electrical equivalent model combines the accuracy of lithium-ion electrochemical models and the convenience advantages of conventional empirical circuit models in energy storage control parameters tuning and large-scale energy storage station equivalent modeling.It is more suitable for modeling,simulation,parameter setting,and safety monitoring of energy storage power stations in new power system scenarios.
关键词
锂离子电池/机理电气等值模型/锂离子电池电化学模型/经验等效电路模型/大规模储能电站Key words
lithium-ion battery/mechanism electrical equivalent model/electrochemical model of lithium-ion battery/empirical circuit model/large-scale storage power station引用本文复制引用
基金项目
国家重点研发计划(2022YFB2402700)
出版年
2024
国家科技期刊平台
NSTL
万方数据