An Ultracapacitor Model Derived Using Time-Dependent Current Profiles

被引：8

作者：

Wang, Yang ^{[1
]}

Carletta, Joan E. ^{[1
]}

Hartley, Tom T. ^{[1
]}

Veillette, Robert J. ^{[1
]}

机构：

[1] Univ Akron, Dept Elect & Comp Engn, Akron, OH 44325 USA

来源：

2008 51ST MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2008年

关键词：

D O I：

10.1109/MWSCAS.2008.4616902

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A linear model of an ultracapacitor cell has been determined using time-domain identification techniques. A third-order transfer function consistent in form with an RC ladder circuit model is assumed. The transfer function coefficients are identified from experimental data consisting of time-varying current excitations and the first differences of the resulting terminal voltage responses. The model accurately matches the transient response of the cell over time intervals of about an hour. A longer charge-redistribution time constant (on the order of days) was also observed; however, this time constant has no significant effect in the one-hour timeframe, and is included in the model only as a dissipative term.

引用

页码：726 / 729

页数：4

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