文章信息/Info

Title:

Software-defined Reconfigurable Battery System and Its Applications

作者:

慈松; 周楊林; 林倪

1 清華大學能源互聯(lián)網創(chuàng)新研究院；2 內布拉斯加州大學林肯分校；3 上�？萍即髮W

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

關鍵詞:

可重構電池網絡; 軟件定義電池系統(tǒng); 電池儲能系統(tǒng); 信息物理融合系統(tǒng); 可重構電池網技術應用

Keywords:

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

DOI:

10.7502/j.issn.1674-3962.2017.10.02

文獻標志碼:

A

摘要:

自電池被發(fā)明200多年以來，電池系統(tǒng)一直是采用固定串并聯(lián)的系統(tǒng)架構，即很多小容量的單體電池根據(jù)負載的要求固定串并聯(lián)成一個電池系統(tǒng)。然而，由于生產和工況引入的單體電池差異性，這種固定串并聯(lián)的系統(tǒng)架構給電池系統(tǒng)帶來了很多應用上問題，如SOC和SOH的測不準問題，電池充放電均衡問題，電池的梯次利用問題及可靠性和安全性問題等。能源互聯(lián)網和信息物理系統(tǒng)（cyber-physical systems, CPS）被認為是為未來的能源系統(tǒng)提供了解決方案，借鑒軟件定義的理念和具體實現(xiàn)，軟件定義可重構電池系統(tǒng)更能滿足信息、電池基礎設施一體化意義下的需求。本文將重點討論一種基于能源互聯(lián)網思想的顛覆性的電池系統(tǒng)設計-軟件定義可重構電池系統(tǒng)，其電池連接拓撲結構可以根據(jù)電池的SOC和SOH實時動態(tài)地調整。此外，本文還介紹了基于軟件定義可重構電池系統(tǒng)設計理念，實現(xiàn)能量流和信息流緊密融合的相關應用。

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.