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A Comparative Study of Battery Models Parameter Estimation
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Abstract
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Battery system as a vital part in the Electrical Vehicles (EVs) needs accurate and efficient battery model to predict and optimize battery performance especially under different runtime operations. An accurate method for estimating the battery model parameters is necessary before constructing a reliable battery model. This paper gives a review on the different battery model parameters estimation methods. As well as, propose a modified methodology for battery models parameters estimation based on MATLAB/Simulink (R) using parameter estimation tool under Simulink environment. Four of the famous battery models; Thevenin, the Partnership for a New Generation of Vehicles (PNGV), Second-order and Randles battery models are used for battery model parameters estimation and validation. Hence, Lithium polymer batteries have been tested by specific standard tests at different state of charge (SoC), temperature, current rate (C-rates) and cycle number. Afterward, the four battery models parameters are estimated according to these conditions. Copyright (C) 2012 Praise Worthy Prize S.r.l. - All rights reserved.
Keywords:
Matlab/Simulink Parameters Estimation
Thevenin
PNGV
Freedomcar
Randles Battery Model
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