Semi-Automatic Li-Ion battery RC model parameters estimator

Developed by Federico D. Ceccarelli, Martin Moya and Lucio Santos for the BMS project.

Brief

The code implements a numerical optimization algorithm using Simulink Parameter Estimation, as part of the System Identification Toolbox, to estimate R y C parameter values of a second order Li-Ion battery model (a series resistance R0 connected in series with two parallel R-C branches) minimizing error between measured and simulated results.

For this example it was used a five pulses discharge HPPC test (0.5, 1, 2, 4, 6C) performed at 100, 95, 90, 80, 70..., 30, 25, 20, 15, 10, 5, 0 SOC. The data set was taken from the battery test performed at the University of Wisconsin-Madison by Dr. Phillip Kollmeyer [[1]]

Folder structure

This repo includes Panasonic 18650PF Li-Ion Battery Data as a submodule, so in order to clone and get the five pulses discharge HPPC test do:

git clone https://github.com/fededc88/Li-Ion-Battery-parameters-estimator.git --recurse-submodules -j<n_cores>

Bibliography

Battery Model Parameter Estimation Using a Layered Technique: An Example Using a Lithium Iron Phosphate Cell Robyn Jackey, Michael Saginaw, Pravesh Sanghvi, and Javier Gazzarri MathWorks Tarun Huria and Massimo Ceraolo Università di Pisa

Parameterization of a Battery Simulation Model Using Numerical Optimization Methods Robyn A. Jackey The MathWorks, Inc. Gregory L. Plett University of Colorado at Colorado Springs Martin J. Klein Compact Power Inc.

Estimate Model Parameter Values (Code) - https://www.mathworks.com/help/sldo/ug/estimate-model-parameter-values-code.html#d122e5060

[1] Dr. Phillip Kollmeyer (2018). Panasonic 18650PF Li-ion Battery Data

Referencing

Do you find this project interesting or useful for your work? Please let us know (@fededc88, @moyamartin & @lusho2206).

Any kind of submission are welcome!

Electronic Engineering
Faculty of Exact Sciences, Engineering and Land Surveing
National University of Rosario (Universidad Nacional de Rosario, UNR)

Cite this work using

@article {
    Author = {Ceccarelli, Federico; Moya, Martin; Santos Lucio}
    Title = {Semi-Automatic Li-Ion battery RC model parameters estimator}
    Year = {2021}
    Institute = {Faculty of Exact Sciences, Engineering and Land Surveing -
    National University of Rosario}
}