典型文献
State of health based battery reconfiguration for improved energy efficiency
文献摘要:
This paper analyzes the system-level state of health(SOH)and its dependence on the SOHs of its component battery modules.Due to stochastic natures of battery aging processes and their dependence on charge/discharge rate and depth,operating temperature,and environment conditions,capacities of battery modules decay unevenly and randomly.Based on estimated SOHs of battery modules during battery operation,we analyze how the SOH of the entire system deteriorates when battery modules age and become increasingly diverse in their capacities.A rigorous mathematical analysis of system-level capacity utilization is conducted.It is shown that for large battery strings with uniformly distributed capacities,the average string capacity approaches the minimum,implying an asymptotically near worst-case capacity utility without reorganization.It is demonstrated that the overall battery usable capacities can be more efficiently utilized to achieve extended operational ranges by using battery reconfiguration.An optimal regrouping algorithm is introduced.Analysis methods,simulation examples,and a case study using real-world battery data are presented.
文献关键词:
中图分类号:
作者姓名:
Le Yi Wang;George Yin;Yi Ding;Caiping Zhang
作者机构:
Department of Electrical and Computer Engineering,Wayne State University,Detroit,MI 48202,USA;Department of Mathematics,University of Connecticut,Storrs,CT 06269,USA;US Army CCDC Ground Vehicle Systems Center in Warren,Warren,MI 48397,USA;School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China
文献出处:
引用格式:
[1]Le Yi Wang;George Yin;Yi Ding;Caiping Zhang-.State of health based battery reconfiguration for improved energy efficiency)[J].控制理论与技术(英文版),2022(04):443-455
A类:
SOHs,regrouping
B类:
State,health,battery,reconfiguration,improved,energy,efficiency,This,paper,analyzes,system,level,state,its,dependence,component,modules,Due,stochastic,natures,aging,processes,their,discharge,depth,operating,temperature,environment,conditions,capacities,decay,unevenly,randomly,Based,estimated,during,we,entire,deteriorates,when,become,increasingly,diverse,rigorous,mathematical,analysis,capacity,utilization,conducted,It,shown,that,large,strings,uniformly,distributed,average,approaches,minimum,implying,asymptotically,near,worst,case,utility,without,reorganization,demonstrated,overall,usable,can,more,efficiently,utilized,achieve,extended,operational,ranges,by,using,optimal,algorithm,introduced,Analysis,methods,simulation,examples,study,real,world,data,are,presented
AB值:
0.579311
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