重庆理工大学学报2025，Vol.39Issue(1)：185-194,10.DOI:10.3969/j.issn.1674-8425(z).2025.01.024
考虑SOC均衡的分布式储能电流分配策略研究
Research on distributed energy storage current allocation strategy considering SOC balancing
摘要
Abstract
The mismatch of line impedance impacts the accuracy of current distribution and the state of charge(SOC)balance in an isolated island DC microgrid system.Furthermore,virtual impedance reduces the DC bus voltage due to droop control.To address these challenges,we propose an SOC equalization control strategy based on adaptive virtual impedance.Our strategy considers distributed energy storage units(DESUs)with different capacities and designs convergence factors to accelerate SOC balance by exchanging SOC balance difference information among neighboring DESUs.A single compensation link,integrating various system state information,enables precise distribution of output current and recovery of bus voltage.The improved dynamic average consistency algorithm estimates the global average state information.Finally,four working condition models are built by employing Matlab/Simulink simulation software,which verifies the effectiveness and reliability of our control strategy.关键词
直流微电网/荷电状态/虚拟阻抗/电流分配/电压恢复Key words
DC microgrid/state of charge/virtual impedance/current distribution/voltage recovery分类
信息技术与安全科学引用本文复制引用
王嘉梅,罗沁,黄璇,刘志灿..考虑SOC均衡的分布式储能电流分配策略研究[J].重庆理工大学学报,2025,39(1):185-194,10.基金项目
国家自然科学基金项目(61963038) （61963038）
