A SINGLE LC TANK BASED ACTIVE VOLTAGE BALANCING CIRCUIT FOR BATTERY MANAGEMENT SYSTEM
Keywords:ACTIVE VOLTAGE BALANCING, Battery Management
A single series resonant converter has been designed to balance the voltage level of nowadays, battery operated vehicles and machine power tools are becoming popular due to their simple and compact structure, low operating and maintenance costs, moreover renewable energy utilization facility etc. In order to obtain the necessary operating voltage and current of these devices, many electric cells are combined together in series and parallel combination. A series battery balancing circuit can be used to improve the efficiency of each cell charging and discharging process and consequently increase the lifespan of it. A battery management system (BMS) needs an efficient balancing circuit. This paper presents a high-speed single LC-tank DC to DC converter based electric cell balancing schemes. Since the supercapacitors are equivalent of rechargeable battery; in this research two supercapacitors have been used instead of rechargeable batteries. The voltage balance has been maintained by charging and discharging the supercapacitors through a single LC-tank circuit. As a result, the overall voltage balancing time has been reduced and improved the circuit performance. Experimental result shows that the proposed balancing circuit can reduce the voltage difference between the two supercapacitors from 350 mV to 0 V in 284 seconds, which is less time than the existing system.
 Habib, A. A., Motakabber, S. M. A., and Ibrahimy, M. I. (2017). A Series Regeneration Converter Technique for Voltage Balancing of Energy Storage Devices. Indonesian Journal of Electrical Engineering and Computer Science, 8(2).
 Chellaswamy, C., and Ramesh, R. (2017). Future renewable energy option for recharging full electric vehicles. Renewable and Sustainable Energy Reviews, 76, pp. 824-838.
 Martinez, D. A., Poveda, J. D., & Montenegro, D. (2017, May). A Li-ion battery management system based on fuzzy logic for improving electric vehicle autonomy. In Power Electronics and Power Quality Applications (PEPQA), 2017 IEEE Workshop on (pp. 1-6). IEEE.
 Frost, D. F., & Howey, D. A. (2018). Completely Decentralized Active Balancing Battery Management System. IEEE Transactions on Power Electronics, 33(1), pp. 729-738.
 Yu Y, Saasaa R, Eberle W. A series resonant circuit for voltage equalization of series connected energy storage devices. Applied P Elec Conf and Exp (APEC), 2016 IEEE; pp. 1286-1291.
 Li Y, Han Y. A module-integrated distributed battery energy storage and management system. IEEE Trans P Elec. 2016; vol. 31, pp. 8260-70.
 Gong X., Xiong R., and Mi C. C., "Study of the characteristics of battery packs in electric vehicles with parallel-connected lithium-ion battery cells," IEEE Trans. Ind. Appl., vol. 51,
no. 2, pp. 1872-1879, Mar./Apr. 2015.
 M. M. Hoque, M A Hannan, and A. Mohamed, "Voltage Equalization Control Algorithm for Monitoring and Balancing of Series Connected Lithium-Ion Battery," J. Renewable Sustainable Energy, vol. 8, no. 2, pp. 1-15, Mar. 2016.
 Hoque, M. M., Hannan, M. A., Mohamed, A., & Ayob, A. (2017). Battery charge equalization controller in electric vehicle applications: A review. Renewable and Sustainable Energy Reviews, vol. 75, pp. 1363-1385.
 Zhang, Z., Gui, H., Gu, D. J., Yang, Y., & Ren, X. (2017). A hierarchical active balancing architecture for lithium-ion batteries. IEEE Transactions on Power Electronics, 32(4),
 Li, W., Liao, X., & Gao, Z. (2016, March). A modular equalizer using buck/boost converters with snubber capacitors in series-connected supercapacitors. In Industrial Technology (ICIT), 2016 IEEE International Conference on (pp. 1904-1909). IEEE.