Detecting of optimal Li-ion battery charging frequency by using AC impedance technique

Chen, Liang-Rui; Wu, Shing-Lih; Chen, Tsair-Rong; Yang, Wen-Ren; Wang, Chau‐Shing; Chen, Po‐Chang

doi:10.1109/iciea.2009.5138829

Cited by 15 publications

(12 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The optimal charging frequency to obtain maximum energy transfer efficiency (i.e., best electrochemical reaction) can be obtained by analyzing the AC impedance of a Li-ion battery. The optimal charging frequency is the minimum AC impedance frequency min Z f [17]. In addition, the minimum AC impedance frequency min Z f is almost same as the resonant frequency r f .…”

Section: Introductionmentioning

confidence: 96%

“…In addition, the optimal duty cycle for charging Li-ion battery is also presented [16]. Recently, analyzing the relationship between the AC impedance of a battery and its charging performance has been explored [17]. The optimal charging frequency to obtain maximum energy transfer efficiency (i.e., best electrochemical reaction) can be obtained by analyzing the AC impedance of a Li-ion battery.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of sinusoidal current charger with optimal frequency tracker for Li-ion battery

Chen

Chou³

et al. 2010

The 2010 International Power Electronics Conference - ECCE ASIA -

Self Cite

View full text Add to dashboard Cite

In this paper, a sinusoidal current charger Sin-CC with optimal frequency tracker is proposed for Li-ion battery. The proposed optimal frequency tracker is mainly constructed by the phase-lock-loop so that the features of detecting, tracking and locking in the optimal charging frequency can be achieved. The experimental results show that the charging speed charging efficiency and increasing surface temperature of the proposed Sin-CC are improved about 5%, 5.5% and 51.5%compared with that of the conventional constant current charge system.

show abstract

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Design of sinusoidal current charger with optimal frequency tracker for Li-ion battery

Chen

Chou³

et al. 2010

The 2010 International Power Electronics Conference - ECCE ASIA -

Self Cite

View full text Add to dashboard Cite

show abstract

“…Another advantage of using the fuzzy logic is the fact that the software execution of complex systems is not computer intensive. On the other hand phase-locked-loop technique is submitted to design a PLL based battery charger to achieve the purpose of good performance and low cost [5,14].…”

Section: Introductionmentioning

confidence: 99%

“…Rechargeable battery life is relation not only charger times [3,4,5,12,13], But overcharging control and charger way [1,2,6,10,11,16]. We must submit some battery charger with best efficiency [1,2,15,[5][6][7][8][9][10]18,19,20] and more safe from damage of overcharging or under charging. The life cycles of Li-Ion batteries are simply is influenced by overcharge or undercharge, because overcharge can damage the physical elements of the battery and undercharge can decrease the energy capacity of the battery.…”

Section: Introductionmentioning

confidence: 99%

<title>Fuzzy-control-based five-step Li-ion battery charger by using AC impedance technique</title>

et al. 2012

View full text Add to dashboard Cite

In This paper the previous Li-Ion battery charger techniques are reviewed and compared and the new fuzzy logic battery charging method which is proposed to optimize and improve the battery charger efficiently. According to results of comparison, using the fuzzy control charging system can shorten the charging time with higher efficiency and lower temperature rise. Additionally, we have used optimal Li-ion battery charging frequency by using AC impedance technique which means if the battery is charged by the optimal charging frequency fZmin, that obtain from Bode Plot of the Li-ion battery, the charging time and charging efficiency will improve. Thus using the switching frequency (fZmin) of the battery charger and the fuzzy logic control on the same system can optimize the performance on the charging process. According to the experimental results, the proposed charger can charge the Li-ion batteries with higher efficiency 97.16%, lower temperature rise1.513degree celosias, fast charging period around 50.43 minute and long life cycle. The results in this paper are presented by using MATLAB and dsPIC30F2020 is used as controller applying designed fuzzy logic inside.

show abstract

“…The BEVs can realize zero emission as all of their power comes from the batteries and the electric power in the batteries may come from solar energy or wind energy, which is renewable energy. However, the battery used in the EVs becomes a technical bottleneck as it still has some problems, such as the long charging time or precise estimation of state of charge (SOC) [1][2][3][4][5]. The charging time for EVs is usually long, which is a serious problem for their wide application.…”

Section: Introductionmentioning

confidence: 99%

Study on the Optimal Charging Strategy for Lithium-Ion Batteries Used in Electric Vehicles

Zhang

Xiong

et al. 2014

Energies

View full text Add to dashboard Cite

Abstract:The charging method of lithium-ion batteries used in electric vehicles (EVs) significantly affects its commercial application. This paper aims to make three contributions to the existing literature. (1) In order to achieve an efficient charging strategy for lithium-ion batteries with shorter charging time and lower charring loss, the trade-off problem between charging loss and charging time has been analyzed in details through the dynamic programing (DP) optimization algorithm; (2) To reduce the computation time consumed during the optimization process, we have proposed a database based optimization approach. After off-line calculation, the simulation results can be applied to on-line charge; (3) The novel database-based DP method is proposed and the simulation results illustrate that this method can effectively find the suboptimal charging strategies under a certain balance between the charging loss and charging time.

show abstract

Detecting of optimal Li-ion battery charging frequency by using AC impedance technique

Cited by 15 publications

References 22 publications

Design of sinusoidal current charger with optimal frequency tracker for Li-ion battery

Design of sinusoidal current charger with optimal frequency tracker for Li-ion battery

<title>Fuzzy-control-based five-step Li-ion battery charger by using AC impedance technique</title>

Study on the Optimal Charging Strategy for Lithium-Ion Batteries Used in Electric Vehicles

Contact Info

Product

Resources

About