Study on Fast Charging Method of Series Connected Lithium-Ion Battery Strings with Intelligent Control

Chuang, Ching-Chun; Yao, Chun-Jen; Wu, Sen‐Tung

doi:10.1109/ifuzzy50310.2020.9297813

Cited by 14 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When batteries are connected in series and charged to the maximum voltage with a single-power charger, the same voltage distribution as that of a capacitor occurs due to the difference in capacity [10][11][12]. Passive balancing is performed to eliminate this voltage difference and produce a uniform voltage [6,13,14].…”

Section: Characteristics Of Battery Connection Structurementioning

confidence: 99%

“…Therefore, it can be seen that there is no significant difference when only simple voltage is compared during rest time. Conversely, when the SOC is charged to 100%, the SOC cannot reach 100% because there is not enough current to fully charge a cell with a large battery capacity [10][11][12]18,23,24]. Therefore, a cell with a small capacity is charged with a voltage higher than the set voltage due to the voltage distribution, and a cell with a relatively large capacity is charged with a lower voltage [7,19].…”

Section: Characteristics Of Series-connected Batteriesmentioning

confidence: 99%

“…In this case, when passive cell balancing was performed, the voltage of the large-capacity cell was lowered. Conversely, when the SOC is 50% or higher, the voltage increase rate of the smallcapacity cell is high and the voltage of the relatively large-capacity cell is low [7,[10][11][12]18]. Therefore, at an SOC of 50% or higher, cells with relatively small capacities are passively balanced.…”

Section: Charging/discharging Characteristics Of Series-connected Bat...mentioning

confidence: 99%

See 2 more Smart Citations

Effect of Capacity Variation in Series-Connected Batteries on Aging

Yun

Kee

2022

Batteries

View full text Add to dashboard Cite

Batteries are used in various combinations in various fields. Research on single-cell batteries is well underway and is approaching a stabilization phase. However, problems caused by battery combinations are still insufficiently studied. The purpose of this study was to investigate the cause of fires due to gradual damage in a large-capacity energy storage system (ESS). In the paper Energy Storage System Safety Operation Plan by Preventing Overcharge During Relaxation Time, which was based on the fact that most fires in large-capacity energy storage devices occurred during the diastolic period, it was proven that the inflow of compensation current due to a voltage imbalance in the cell was the cause. The total amount of compensation current is determined by the voltage deviation of the battery. Batteries connected in series have different rates of aging due to differences in their capacities. Thus, with use, the total amount of compensating current continues to increase until a fire occurs. In this study, by analyzing the effect of battery-capacity deviation on the aging of individual cells, it was confirmed that the capacity deviation increased as the battery was used, resulting in an increase in the total amount of compensation current. In addition, if a solution to the problem is presented and the proposed solution is applied, the allowable range of battery-capacity deviation will be widened. We used Matlab 2009a, assuming a real environment. Using Simulink, problems were identified through simulation, improvement measures were suggested, and the proposed method was verified via simulation.

show abstract

Section: Characteristics Of Battery Connection Structurementioning

confidence: 99%

Section: Characteristics Of Series-connected Batteriesmentioning

confidence: 99%

Section: Charging/discharging Characteristics Of Series-connected Bat...mentioning

confidence: 99%

See 1 more Smart Citation

Effect of Capacity Variation in Series-Connected Batteries on Aging

Yun

Kee

2022

Batteries

View full text Add to dashboard Cite

show abstract

“…Nowadays, numerous battery-charging-control strategies have been proposed and discussed [4][5][6][7][8][9][10][11][12][13]. Jeong et al proposed the adaptive-input ripple (AIR) maximum powerpoint tracking (MPPT) technique for battery charging [4].…”

Section: Introductionmentioning

confidence: 99%

“…Jeon et al studied the best constant-power-charging control strategy based on vehicle-battery charging systems [11]. Chuang et al demonstrated the integration of the fuzzy, CC, and CV methods to regulate the charging current applied to the battery-charging system [12]. Arshadi et al presented the phase-shedding control strategy to enhance battery-charger performance [13].…”

Section: Introductionmentioning

confidence: 99%

A Multifunctional, Non-Constant Current Charger Based on a Dual-Switching, Bidirectional Flyback Converter

et al. 2022

View full text Add to dashboard Cite

This study implements a multifunctional charger based on a dual-switching, bidirectional flyback converter (DSBFC). The proposed charger adopts seven charging methods, including the incremental-current charging, constant-voltage (CV) charging, constant-current (CC) charging, pulse-current (PC) charging, triangular-current (TC) charging, sinusoidal-current (SC) charging, and positive/negative pulse-current (Reflex) charging methods. The charging process of a lithium-ion battery is divided into three stages: an initial term, a mid-term, and a final term. In the initial term, the incremental-current charging method is used in the initial term of charging for a soft start and to inhibit an increase in temperature. In the mid-term, five charging methods, including CC, PC, TC, SC, and Reflex-current charging, are used for charging. The CV charging method prevents overcharging the lithium-ion battery in the final term. Based on our experimental results, this study compares the four charging methods (PC, TC, SC, and Reflex-current) with the CC charging method to verify their improvement of the charging speed and increase in temperature in the mid-term. The charging speeds increased by 14.38%, 14.04%, 16.36%, and 27.27%, respectively, and the rise in temperature decreased by 37.8%, 40.5%, 48.6%, and 13.51%, respectively; all performed better than the CC charging method. Finally, users can adjust the charging method of the proposed DSBFC according to the needs of batteries so as to achieve excellent performance.

show abstract

Design of Fast Battery Charging Circuit for Li-Ion Batteries

Sai

Nizami

et al. 2022

Soft Computing: Theories and Applications

View full text Add to dashboard Cite

Study on Fast Charging Method of Series Connected Lithium-Ion Battery Strings with Intelligent Control

Cited by 14 publications

References 10 publications

Effect of Capacity Variation in Series-Connected Batteries on Aging

Effect of Capacity Variation in Series-Connected Batteries on Aging

A Multifunctional, Non-Constant Current Charger Based on a Dual-Switching, Bidirectional Flyback Converter

Design of Fast Battery Charging Circuit for Li-Ion Batteries

Contact Info

Product

Resources

About