Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor

Song, Ding; Niu, Yue Hua; Xing, Jie; Zhu, Jing Mei

doi:10.4028/www.scientific.net/AMM.614.227

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HomeApplied Mechanics and MaterialsInternational Conference Machinery, Electronics...Cell Equalization System for Li-Ion Battery...

Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor

Abstract:

Cell equalization acts an important role on the battery life preserving for space application. This paper describes a lithium ion battery cell equalization method for spacecraft that employs innovative design features in power subsystem. The scheme proposed for balancing the battery pack relies on energy conversion devices as it uses transformers to move energy from high voltage cells to low voltage cells without energy loss. The method employs bi-directional forward DC-AC converters, plus a unique common node to provide autonomous charge distribution. It also supports individual cell voltage monitoring, telemetry data. Multisim is used to analyze the function and performance, experimental result proves that the method is effective for Lithium Ion battery equalization.

Info:

Periodical:

Applied Mechanics and Materials (Volume 614)

Main Theme:

International Conference Machinery, Electronics and Control Simulation

Edited by:

Li Wang

Pages:

227-232

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.227

Citation:

D. Song et al., "Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor", Applied Mechanics and Materials, Vol. 614, pp. 227-232, 2014

Online since:

September 2014

Authors:

Ding Song *, Yue Hua Niu, Jie Xing, Jing Mei Zhu

Keywords:

Bi-Direction DC/AC, Equalizer, Lithium-Ion Battery, Non-Dissipative, Transformer

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References

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[2] H. Bin, S. Gengxin and W. Tao, Research of balancer for space lithium-ion battery, Chinese Journal of Power Sources, vol. 36, 2012, pp.321-324.

[3] S. Moore and P. Schneider, A Review of Cell Equalization Methods for Lithium Ion and Lithium Polymer Battery Systems, in Proceedings of the SAE 2001 World Congress, (2001).

DOI: https://doi.org/10.4271/2001-01-0959

[4] M. J. Isaacson, R. P. Hollandsworth, P. J. Giampaoli, F. A. Linkowsky, A. Salim and V. L. Teofilo, Advanced lithium ion battery charger, 15th Annual Battery Conference on Applications and Advances. Sunnyvale, pp.193-198, Jan. (2000).

DOI: https://doi.org/10.1109/bcaa.2000.838403

[5] Thomas. Stuart, and W. Zhu, Fast Equalization for Large Lithium Ion Batteries, IEEE Aerospace and Electronic Systems Magazine, vol. 24, 2009, pp.27-31.

DOI: https://doi.org/10.1109/maes.2009.5208557

[6] J. Cao, N. Schofield and A. Emadi, Battery balancing methods: A comprehensive review, IEEE Vehicle Power and Propulsion Conference, Harbin, China, pp.1-6, Sept. (2008).

DOI: https://doi.org/10.1109/vppc.2008.4677669

[7] C. Kim, H. S. Park, C. E. Kim, G. W. Moon, and J. H. Lee, Individual Charge Equalization Converter with Parallel Primary Winding of Transformer for Series Connected Lithium-Ion Battery Strings in an HEV, Journal of Power Electronics, vol. 9, pp.472-480, May (2009).

DOI: https://doi.org/10.1109/icpe.2007.4692496

Paper TitlePages

Research on Thermal Management System for the Vehicle Application of Lithium-Ion Power Batteries

Authors: Fang Zhou, Yong Zhong, Pei Zhang

Abstract: Thermal management technique is one of the key techniques for the vehicle application of lithium-ion power batteries. Based on the analysis of thermal characteristics of the lithium-ion power batteries, the establishment of thermal model and numerical simulation for the lithium-ion power batteries were discussed. Finally, a procedure for designing battery thermal management system (BTMS) was proposed, and the key techniques during designing a BTMS were studied, including selection of heat transfer medium, design of cooling/heating structure and so on. This research provides a technique support for designing a good and effective BTMS, as well as improving the working performance and security of the lithium-ion power batteries and the electric vehicles.

984

Design of Battery Management System Hardware Circuit and Bench Testing Verifying for Li-Ion Batteries

Authors: Yuan Bin Yu, Hai Tao Min, Xiao Dong Qu, Jun Guo

Abstract: Take the 60Ah lithium iron phosphate battery equipped for an electronic vehicle as research object, develop the Battery Management System (BMS) and process the bench test. The system uses LTC6802 chip to implement local electronic information collection unit, uses the resistance-voltage distributing principle to implement the high-voltage collecting and insulation resistance detecting, uses MC9S12XDP512 chip to implement the top-level data processing and vehicle information interaction. Bench test shows the designed BMS can monitor all states of the battery pack and compute in real time. At the same time BMS can communicate with the Vehicle Control Unit (VCU) reliably.

1032

Control Method of Parallel Vanadium Batteries Operating in Energy Stored Wind Farm System

Authors: Xu Dong Guo, Bao Ming Ge, Da Qiang Bi, Xin Yu Yang

Abstract: Wind farms with vanadium battery energy storage system are recognized and welcomed. Against the phenomenon of current distribution unreasonable while vanadium batteries are directly paralleled, a control strategy of vanadium battery parallel based on the state of charge (SOC) is proposed. The current control formula is given in this paper. Vanadium batteries are paralleled to adjust the power grid at the exit of wind farms by the bidirectional DC/DC converter. A wind farm model with vanadium battery energy system is simulated on MATLAB/Simulink. The simulation results show that this system can adjust the power grid of wind farms and achieve the goal that the charging and discharging of vanadium batteries are determined by their SOC, avoiding the overcharge or over-discharge.

1027

Low-Power Design for Battery Management System

Authors: Shuo Li, Xiao Jun Liu, En Qing Dong, Xiao Chao Xiao

Abstract: This paper designs a Battery Management System (BMS) based on MCU C8051F350 for 4 series Li-ion battery. It implements the functions of battery pack charge and discharge protection, status display, voltage, current and temperature parameter acquisition and accomplishing RS232 communication between MCU and PC. The analysis of the low-power processing is focused on in the circuit design process. Experimental result shows that this design can reduce power consumption of BMS effectively.

773

Design and Application of Solar Mobile Power Based on Single Chip Microcomputer

Authors: Qiao Jie Zhang, Ming Xiong

Abstract: A solar mobile power based on single chip microcomputer (SCM) is proposed in this paper, which has the functions of charge control, power management, communication, voltage\current\temperature detection and protection. This paper takes wireless sensor as its research object, conducting experimental research in the charging\discharging character of the solar mobile power and the accuracy of its residual capacity prediction algorithm. The results show that the maximum error of the current is 4.8% during the constant current charging process, while the maximum error of the voltage is 0.05% during the constant voltage charging process. Besides, the discharging character and residual capacity prediction accuracy can also guarantee the quality of power supply.

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