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Simple Analytical Method for Determining Parameters of Discharging Batteries.
- Source :
-
IEEE Transactions on Energy Conversion . Sep2011, Vol. 26 Issue 3, p787-798. 12p. - Publication Year :
- 2011
-
Abstract
- This paper derives simple and explicit formulas for computing the parameters of Thevenin’s equivalent circuit model for a discharging battery. The general Thevenin’s equivalent circuit model has n pairs of parallel resistors and capacitors ( nth-order model). The main idea behind the new method is to transform the problem of solving a system of high-order polynomial equations into one of solving several linear equations and a single-variable nth-order polynomial equation, via some change of variables. The computation can be implemented with a simple MATLAB code less than half-page long. Experimental and computational results are obtained for three types of batteries: Li-polymer, lead–acid, and nickel metal hydride. For all the tested batteries, the first-order models are not able to generate voltage responses that closely match the measured responses, while second-order models can generate well-matched responses. For some of the batteries, a third-order model can do a better job matching the voltage responses. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 08858969
- Volume :
- 26
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Energy Conversion
- Publication Type :
- Academic Journal
- Accession number :
- 64470466
- Full Text :
- https://doi.org/10.1109/TEC.2011.2129594