软件定义可重构电池系统及其应用-中国材料进展

文章信息/Info

Author(s):: CI Song; ZHOU Yanglin; LIN Ni; 1 Energy Internet Research Institute, Tsinghua University, Beijing, Beijing, 100084, China 2 University of Nebraska-Lincoln, Omaha, Nebraska，68588，USA 3 ShanghaiTech University, Shanghai, Shanghai, 201210, China

Keywords:: Dynamical reconfigurable battery networks; software-defined battery systems; battery energy storage system; cyber-physical system; reconfigurable battery network application

摘要:: 自电池被发明200多年以来，电池系统一直是采用固定串并联的系统架构，即很多小容量的单体电池根据负载的要求固定串并联成一个电池系统。然而，由于生产和工况引入的单体电池差异性，这种固定串并联的系统架构给电池系统带来了很多应用上问题，如SOC和SOH的测不准问题，电池充放电均衡问题，电池的梯次利用问题及可靠性和安全性问题等。能源互联网和信息物理系统（cyber-physical systems, CPS）被认为是为未来的能源系统提供了解决方案，借鉴软件定义的理念和具体实现，软件定义可重构电池系统更能满足信息、电池基础设施一体化意义下的需求。本文将重点讨论一种基于能源互联网思想的颠覆性的电池系统设计-软件定义可重构电池系统，其电池连接拓扑结构可以根据电池的SOC和SOH实时动态地调整。此外，本文还介绍了基于软件定义可重构电池系统设计理念，实现能量流和信息流紧密融合的相关应用。

Abstract:: Since the battery was invented in the past 200 years, battery management system has been the use of fixed series-parallel system architecture, that many small-capacity unit cells connected in parallel to be a batteries-cell system according to the requirements load. However, due to the differentiations caused by production conditions and operating modes, this fixed batteries series-parallel system architecture system brings a lot of application problems, such as SOC and SOH uncertainty problem, the battery charge and discharge unbalance problem, safety issues, and low reliability. Energy internet and cyber-physical system (CPS) are believed to be the solution for the future of energy system. With the software-defined method, the software-defined approach was applied to meet the integration requirement of cyber-energy infrastructure for information and battery. In this paper, the author is mainly focused on the disruptive energy battery system design that the battery cell topology can be dynamically reconfigured in the real-time fashion based on the current condition (in terms of the state of charge and the state of health) of battery cells. Besides, the author has also described the battery system design theory based on the close integration of energy flow and information flow and its application in the relevant field.