Review of charge equalization schemes for Li-ion battery and super-capacitor energy storage systems

Raman, S. Raghu; Xue, X.D.; Cheng, Ka Wai Eric

doi:10.1109/icaecc.2014.7002471

Cited by 36 publications

(17 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Based on the voltage and current collected by the sampling circuit, the charging power of Farad capacitor can be obtained by formula (3). Then, the actual charging power is compared with the set power, and the deviation is substituted into the PID algorithm to change the PWM duty cycle.…”

Section: Feedback Controlmentioning

confidence: 99%

See 1 more Smart Citation

A Farah Charging System Based on Constant Power Supply

Xiao¹,

Li²

2019

EJEE

View full text Add to dashboard Cite

The efficiency and time of charging are critical to the application of Farad capacitor. To reduce the loss and enhance the efficiency of Farad capacitor charging, this paper designs a constant power charging system for Farah capacitor based on negative feedback control. Centering on KEAZN64 microprocessor, the system collects the charging voltage and current in real time, which are processed by the microprocessor using the proportional-integral-derivative (PID) algorithm. Then, the microprocessor outputs pulse-width modulation (PWM) signals. Under the control of these signals, the half-bridge drive circuit realizes the constant power charging of Farad capacitor bank. Several experiments were conducted to compare the charging efficiency and time of three charging modes on a Farad capacitor bank, namely, constant voltage charging, constant current charging and constant power charging. The experimental results show that the constant power charging outperformed the other two modes, and the proposed system could charge the Farad capacitor bank with a constant power between 1~60W. The charging efficiency of the system reached 96%. The research findings provide a strong technical support for the promoting of Farad capacitor.

show abstract

Section: Feedback Controlmentioning

confidence: 99%

“…Farah capacitor is a high energy storage element widely used in power supplies, thanks to its fast charging speed, long cycle life, high current discharge and efficient energy conversion [1][2][3]. The low impedance of Farah capacitor is indispensable for many high-power applications.…”

Section: Introductionmentioning

confidence: 99%

A Farah Charging System Based on Constant Power Supply

Xiao¹,

Li²

2019

EJEE

View full text Add to dashboard Cite

show abstract

“…Passive charge equalizers [6,7] employ passive shunt elements, like Zener diodes, resistors, or even the self-discharge leakage current, to attain cell balance. These passive methods are low cost and configuration.…”

Section: Introductionmentioning

confidence: 99%

Multi-Port Zero-Current Switching Switched-Capacitor Converters for Battery Management Applications

et al. 2018

View full text Add to dashboard Cite

Abstract:A novel implementation of multi-port zero-current switching (ZCS) switched-capacitor (SC) converters for battery management applications is presented. In addition to the auto-balancing feature offered by the SC technique, the proposed SC converter permits individual control of the charging or discharging current of the series-connected energy storage elements, such as the battery or super-capacitor cells. This approach enables advanced state control and accelerates the equalizing process by coordinated operation with the battery management system (BMS) and an adjustable voltage source, which can be implemented by a DC-DC converter interfaced to the energy storage string. Different configurations, including the single-input multi-output (SIMO), multi-input single-output (MISO) SC converters, and the corresponding altered circuits for string-to-cells, cells-to-string, as well as cells-to-cells equalizers, are discussed with a circuit analysis and derivation of the associated mathematical representation. The simulation study and experimental results indicated a significant increase in the balancing speed with the presence of BMS and closed-loop control of cell currents.

show abstract

“…They are the most cost-efficient energy storage device available on the market today [10] and can store a large amount of energy with specific energy densities from 430 to 720 kJ/kg [11]. Moreover, Li-ion batteries have the advantage of high electrical and thermal stability, very low discharge rate and an absence of memory effect [12], [13].…”

Section: Introductionmentioning

confidence: 99%

Optimal energy storage solution for an inductively powered system for dairy cows

Minnaert

Thoen

David

et al. 2017

2017 IEEE Wireless Power Transfer Conference (WPTC)

View full text Add to dashboard Cite

In order to remain cost competitive, dairy farmers are equipping their animals with automatic health monitoring systems. An important obstacle for integrating these systems is the high energy consumption of the on-cow components. A solution is wireless charging of the automated system at a feeding trough by inductive coupling. We developed an inductively powered system that is charged each time the cow eats at a feeding trough. We study which energy buffer is preferable for this application: rechargeable Li-ion batteries or supercapacitors. From measurements at a dairy farm, we obtain that the rate at which energy is captured is too high for an efficient use of Li-ion batteries. Supercapacitors are able to store energy at a very high rate, making them better suited for this application.

show abstract

Review of charge equalization schemes for Li-ion battery and super-capacitor energy storage systems

Cited by 36 publications

References 24 publications

A Farah Charging System Based on Constant Power Supply

A Farah Charging System Based on Constant Power Supply

Multi-Port Zero-Current Switching Switched-Capacitor Converters for Battery Management Applications

Optimal energy storage solution for an inductively powered system for dairy cows

Contact Info

Product

Resources

About