Imperial College London
Portrait Picture

Dr Jorge Varela Barreras

Faculty of Engineering, Department of Civil and Environmental Engineering

Honorary Research Fellow
 
 
 
//

Contact

 

j.varela-barreras Website

 
 
//

Location

 

409City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{de:2019:10.1109/tvt.2019.2929653,
author = {de, Castro R and Pinto, C and Varela, Barreras J and Araujo, RE and Howey, DA},
doi = {10.1109/tvt.2019.2929653},
journal = {IEEE Transactions on Vehicular Technology},
pages = {11449--11461},
title = {Smart and hybrid balancing system: design, modeling, and experimental demonstration},
url = {http://dx.doi.org/10.1109/tvt.2019.2929653},
volume = {68},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Performance of series connected batteries is limited by the “weakest link” effect, i.e., the cell or group of cells with the poorest performance in terms of temperature, power, or energy characteristics. To mitigate the “weakest link” effect, this study deals with the design, modeling, and experimental demonstration of a smart and hybrid balancing system (SHBS). A cell-to-cell shared energy transfer configuration is proposed, including a supercapacitor bank in the balancing bus, thus enabling hybridization. Energy is transferred from each battery module connected in series to the balancing bus, and vice-versa, by means of low-cost bi-directional dc-dc converters. The current setpoints of the converters are obtained by means of a smart balancing control strategy, implemented using convex optimization. The strategy is called “smart” because it pursues goals beyond the conventional state-of-charge equalization, including temperature and power capability equalization, and minimization of energy losses. Simulations show that the proposed SHBS is able to achieve all these goals effectively in an e-mobility application and are also used to assess the impact of different hybridization ratios and cooling conditions. Finally, an experimental setup is developed to demonstrate the feasibility of the SHBS.
AU  - de,Castro R
AU  - Pinto,C
AU  - Varela,Barreras J
AU  - Araujo,RE
AU  - Howey,DA
DO  - 10.1109/tvt.2019.2929653
EP  - 11461
PY  - 2019///
SN  - 0018-9545
SP  - 11449
TI  - Smart and hybrid balancing system: design, modeling, and experimental demonstration
T2  - IEEE Transactions on Vehicular Technology
UR  - http://dx.doi.org/10.1109/tvt.2019.2929653
UR  - https://ieeexplore.ieee.org/document/8768008
VL  - 68
ER  -
Download