Observer-Driven Charging of Supercapacitors
Observer-Driven Charging of Supercapacitors
复制标题
观察者驱动的超级电容器充电
DOI:
10.1109/tii.2019.2935246
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发表时间:
2020-05
影响因子:
12.3
通讯作者:
Wang Jing
中科院分区:
文献类型:
--
作者:
Li Heng;Peng Jun;He Jianping;Huang Zhiwu;Wang Jing
Cell balancing is crucial for charging supercapacitor cells to prevent cells from over-charging. Most existing cell-balancing charging methods typically adopt an output feedback control, i.e., the terminal voltages of cells are directly utilized in the controller design. One limitation of these methods is the voltage drop effect when the charging is terminated, which degrades the system capacity and results in cell imbalance. To address this challenge, in this article, we propose an observer-driven charging method for supercapacitors. The switched resistor circuit is applied and is further modeled using the switched systems theory, where the RC model of cells is considered. The communication interactions among cells is modeled using the graph theory. A switching Luenberger observer is designed to estimate the voltage of the equivalent capacitor of each cell, and a consensus-based switching control law is designed to charge and balance supercapacitors. The closed-loop system model is derived using the block diagram. A laboratory testbed has been built to verify the effectiveness of the proposed charging method. Experimental results show that the proposed method can effectively alleviate the voltage drop effect when compared with existing charging methods.
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影响因子:
11.8
作者:
Ding Zhai;Xuan Liu;Yanjun Liu
通讯作者:
Ding Zhai;Xuan Liu;Yanjun Liu
影响因子:
6.6
作者:
Kaus, Maximilian;Kowal, Julia;Sauer, Dirk Uwe
通讯作者:
Sauer, Dirk Uwe
影响因子:
1.2
作者:
Matthew M. Peet
通讯作者:
Matthew M. Peet
DOI:
10.2307/3616070
发表时间:
1973-12
期刊:
The Mathematical Gazette
影响因子:
--
作者:
K. Fraughnaugh
通讯作者:
K. Fraughnaugh
DOI:
10.1007/978-3-8348-9329-1_2
发表时间:
2010
期刊:
--
影响因子:
--
作者:
M. Loebl
通讯作者:
M. Loebl