广东电力2024，Vol.37Issue(4)：1-9,9.DOI:10.3969/j.issn.1007-290X.2024.04.001
基于二阶一致性算法的电池储能系统SOC均衡及功率分配策略
SOC Balancing and Power Distribution Strategies Based on Second-order Consensus Algorithm
摘要
Abstract
In order to extend the overall lifetime of the energy storage system,it is necessary to keep the state of charge(SOC)of each energy storage unit in the energy storage system in a balanced state.Therefore,this paper proposes an improved droop control strategy based on the second-order consensus algorithm,which is able to realize the SOC balancing of energy storage units with different capacities fast by nesting the coefficients of variation in the exponential function.The secondary control strategy is designed on the basic of SOC balancing,which is able to achieve frequency/voltage restoration and active/reactive power reasonable distribution under certain time delay.Finally,the simulation of the battery energy storage system composed of 4 energy storage units verifies the effectiveness of the proposed control strategies.The results indicate the SOC can quickly converge to reach the balanced state,the frequency/voltage can be restored to the rated value,and the active/reactive power can be allocated proportionally.关键词
储能单元/下垂控制/荷电状态均衡/二阶一致性算法/频率、电压恢复/功率分配Key words
energy storage unit/droop control/SOC balancing/second-order consensus algorithm/frequency voltage restoration/power allocation分类
信息技术与安全科学引用本文复制引用
王颂,汪隆君,王钢,钟庆,曾德辉..基于二阶一致性算法的电池储能系统SOC均衡及功率分配策略[J].广东电力,2024,37(4):1-9,9.基金项目
国家自然科学基金项目(51307063) （51307063）
