中国电力2024，Vol.57Issue(6)：45-52,8.DOI:10.11930/j.issn.1004-9649.202401124
储能系统多电池簇健康状态均衡控制策略
Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems
摘要
Abstract
To address the issue of health state equalization among multiple battery clusters in energy storage systems,this paper designs a multi-battery cluster health state equalization control strategy for the energy storage system.This strategy sets the minimum grid-connected power limit for the storage converter according to the change rule of battery life and the grid connection requirements and determines the number of storage converter units involved in the operation of the system based on this limit.Furthermore,the hierarchical analysis method is combined to evaluate the health state of the various clusters of batteries involved in the operation and quantify the value to get the weight coefficients and corresponding power sizes of the storage converter to assume the grid-connected power command.The number of participating energy storage converters and the transmitted power are adjusted to ensure that the power of each energy storage converter does not exceed the limit.Compared with the equalization control strategy,the proposed control strategy can effectively equalize the health state of each battery cluster,extending the overall service life of the energy storage power plant by 40.6% and effectively improving the safety and economy of the energy storage power plant.关键词
储能系统/电池寿命变化规律/储能变流器/层次分析法/安全性/经济性Key words
energy storage system/battery life change rule/energy storage converter/hierarchical analysis method/safety/economy引用本文复制引用
彭昊,罗正经,夏向阳,曾刚,欧宇健,陈贵全,王继军,刘立洪..储能系统多电池簇健康状态均衡控制策略[J].中国电力,2024,57(6):45-52,8.基金项目
国家自然科学基金资助项目(柔性直流输电交流侧故障下换流器多桥臂主动应对的能量调控机理及穿越控制研究,51977014). This work is supported by National Natural Science Foundation of China(Research on Energy Regulation Mechanism and Fault Ride-Through Control of Multi-armed Converter of AC Side Fault in MMC-HVDC System,No.51977014). （柔性直流输电交流侧故障下换流器多桥臂主动应对的能量调控机理及穿越控制研究,51977014）
