基于自适应电流分配算法的SOC均衡控制  

SoC Balancing Control Based on Adaptive Current Distribution Algorithm

作　　者：乔顺庆 田桂珍[1,2] 张建伟 刘广忱[1,2] QIAO Shun-qing;TIAN Gui-zhen;ZHANG Jian-wei;LIU Guang-chen(Inner Mongolia University of Technology,Hohhot 010080,China;不详)

机构地区：[1]内蒙古工业大学,电力学院,内蒙古呼和浩特010080 [2]大规模储能技术教育部工程研究中心,内蒙古呼和浩特010080

出　　处：《电力电子技术》2024年第8期66-69,共4页Power Electronics

基　　金：内蒙古自治区自然科学基金(2021MS05003);内蒙古自治区科技重大专项(2020ZD0014)。

摘　　要：为解决直流微电网独立运行下并联运行的多组储能单元荷电状态(SOC)均衡问题,提出了分段自适应电流分配算法。当SOC偏差较大时,控制储能单元以最大可能电流充放电,加快SOC均衡速度;当SOC偏差较小时,储能单元间充放电流分配系数按SOC的n次指数形式自适应调节,使储能单元的SOC快速、准确地达到均衡一致。最后,搭建了硬件在环实验平台,实验结果验证了所提算法的正确性与可行性。In order to solve the state of charge(SOC)balancing problem among multiple parallel energy storage units in an islanded DC microgrid,the piecewise adaptive current distribution algorithm is proposed.When there is a large deviation in SOC,the energy storage units are controlled to charge or discharge with the maximum possible current,accelerating the SOC balancing.When there is a small deviation in SOC,the charging and discharging current allocation coefficients of energy storage units are adaptively adjusted according to the n-th exponential form of SOC,ensur-ing that the SOC of energy storage units reaches balance rapidly and accurately.Finally,a hardware-in-the-loop ex-perimental platform is constructed,and the correctness and feasibility of the proposed algorithm are validated through the experimental results.

关 键 词：微电网 储能单元 荷电状态 自适应 

分 类 号：TN819.1[电子电信—信息与通信工程]