Maintaining a Constant Charging Duration Independent of Battery Capacity for Battery Pack by Designing a Fast DC Charger

Maintaining a Constant Charging Duration Independent of Battery Capacity for Battery Pack by Designing a Fast DC Charger

Bassam Atieh, Mohammad Fouad Al-sammak
Copyright: © 2019 |Pages: 15
DOI: 10.4018/IJEOE.2019070106
OnDemand:
(Individual Articles)
Available
$37.50
Current Special Offers
No Current Special Offers
TOTAL SAVINGS: $37.50

Abstract

This article proposes a novel strategy for developing a new structure for a lithium-ion battery pack fast charger which aims to achieve fast DC charging, based on the topology of a boost converter. The proposed charger has been designed considering using fewer electronic components at lower cost. Varying initial charging percentage of the Li-ion cells has not been addressed in this article, an equal initial charging percentage of each Li-ion cell is assumed. Performance of the proposed structure of the charger has been tested using a simulation environment. This strategy has shown that this structure ensures scalability of this charger, while using the utility grid (220V, 50Hz) as a main power source for this charger has ensured practical usage flexibility. The results of this research are presented and discussed. These results have shown the outstanding performance and response of this charger.
Article Preview
Top

Methodology

The LG18650HB6 Li-ion cell with a nominal capacity of 1500mAh and a nominal voltage of 3.65 volts and a maximum charge current of 4000mA was chosen for this research Figure 1. In addition, a Boost Charging System was designed to generate electrical power from the 220V AC system. This regulator provides a continuous output voltage of 598.6 V and a maximum charging current of 28 A, and a microprocessor was used to control the charging algorithm and Monitoring and data collection.

Figure 1.

Li-ion cell picture with dimensions from its datasheet

IJEOE.2019070106.f01

Modeling was done using the Matlab / Simulink 2016 software package. A practical experiment was conducted for charging and discharging on a single Li-ion cell. The same experiment was performed under the same test conditions on 4 Li-ion cells connected in series, an equal duration of the charging process was achieved in both experiments.

Complete Article List

Search this Journal:
Reset
Volume 12: 1 Issue (2024): Forthcoming, Available for Pre-Order
Volume 11: 4 Issues (2022): 2 Released, 2 Forthcoming
Volume 10: 4 Issues (2021)
Volume 9: 4 Issues (2020)
Volume 8: 4 Issues (2019)
Volume 7: 4 Issues (2018)
Volume 6: 4 Issues (2017)
Volume 5: 4 Issues (2016)
Volume 4: 4 Issues (2015)
Volume 3: 4 Issues (2014)
Volume 2: 4 Issues (2013)
Volume 1: 4 Issues (2012)
View Complete Journal Contents Listing