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Modelling and Evaluation of Battery Packs with Different Numbers of Paralleled Cells

1
TUM CREATE Ltd., 1 CREATE Way, #10-02 CREATE Tower, Singapore 138602, Singapore
2
Institute of Automotive Technology, Technical University of Munich, Boltzmannstra├če 15, Garching, 85748 Bavaria, Germany
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2018, 9(1), 8; https://doi.org/10.3390/wevj9010008
Received: 2 May 2018 / Revised: 2 June 2018 / Accepted: 4 June 2018 / Published: 7 June 2018
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Abstract

To better evaluate the configuration of battery packs in electric vehicles (EV) in the early design phase, this paper proposes a mathematic model for the simulation of battery packs based on the elementwise calculations of matrices. This model is compatible with the different battery models and has a fast simulation speed. An experimental platform is built for the verification. Based on the proposed model and the statistic features of battery cells, the influence of the number of paralleled cells in a battery pack is evaluated in Monte-Carlo experiments. The simulation results obtained from Monte-Carlo experiments show that the parallel number is able to influence the total energy loss inside the cells, the energy loss caused by the balancing of the battery management system (BMS) and the degradation of the battery pack. View Full-Text
Keywords: battery model; prediction; simulation; efficiency; state of charge battery model; prediction; simulation; efficiency; state of charge
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Chang, F.; Roemer, F.; Baumann, M.; Lienkamp, M. Modelling and Evaluation of Battery Packs with Different Numbers of Paralleled Cells. World Electr. Veh. J. 2018, 9, 8.

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World Electr. Veh. J. EISSN 2032-6653 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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