NEW EQUALIZATION TOPOLOGY FOR BATTERY PACKS BASED ON THREE-WINDING TRANSFORMER

Zheng Zheng; Wang Xiaoshuai; Li Bin; Huang Tao

doi:10.19912/j.0254-0096.tynxb.2022-0742

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (9) : 518-526. DOI: 10.19912/j.0254-0096.tynxb.2022-0742

NEW EQUALIZATION TOPOLOGY FOR BATTERY PACKS BASED ON THREE-WINDING TRANSFORMER

Zheng Zheng¹, Wang Xiaoshuai¹, Li Bin¹, Huang Tao²

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Abstract

Voltage inconsistency of cell in an energy storage battery pack seriously affects the safe and stable operation of the energy storage system. We propose an any cell to cell active equalization topology based on a three-winding transformer, which can realize the direct transfer of equalization energy between the highest voltage cell and the lowest voltage cell, with the advantages of fast equalization speed, high efficiency and low cost. Simulation models and small experimental circuit are built, and the simulation and experimental results show the advantages of the new topology in terms of equalization speed and efficiency as well as its feasibility in practical applications.

Key words

battery pack / energy storage system / three-winding transformer / active equalization / any cell to cell

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Zheng Zheng, Wang Xiaoshuai, Li Bin, Huang Tao. NEW EQUALIZATION TOPOLOGY FOR BATTERY PACKS BASED ON THREE-WINDING TRANSFORMER[J]. Acta Energiae Solaris Sinica. 2023, 44(9): 518-526 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0742

References

[1] 李勇琦, 陈满, 伍科, 等. H桥级联电池储能系统四级均衡控制研究[J]. 太阳能学报, 2019, 40(5): 1291-1297.
LI Y Q, CHEN M, WU K, et al.Research on four levels balancing control for cascaded H-bridge based battery energy storage system[J]. Acta energiae solaris sinica, 2019, 40(5): 1291-1297.
[2] 罗芬, 凌志斌. 以容量利用率最大化为目标的电池储能系统均衡电流分析[J]. 太阳能学报, 2020, 41(4): 318-325.
LUO F, LING Z B.Balance current analysis of battery energy storage system based on capacity utilization maximization[J]. Acta energiae solaris sinica, 2020, 41(4): 318-325.
[3] 王楠, 周喜超, 彭勇, 等. 基于证据KNN分类器的蓄电池一致性诊断[J]. 太阳能学报, 2022, 43(4): 13-19.
WANG N, ZHOU X C, PENG Y, et al.Battery consistency diagnosis based on evidential KNN classifier[J]. Acta energiae solaris sinica, 2022, 43(4): 13-19.
[4] IMTIAZ A M, KHAN F H.“Time shared flyback converter” based regenerative cell balancing technique for series connected Li-Ion battery strings[J]. IEEE transactions on power electronics, 2013, 28(12): 5960-5975.
[5] LIM C, LEE K, KU N, et al.A modularized equalization method based on magnetizing energy for a series-connected lithium-ion battery string[J]. IEEE transactions on power electronics, 2014, 29(4): 1791-1799.
[6] GUO X W, GENG J H, LIU Z, et al.Active balancing method for series battery pack based on flyback converter[J]. IET circuits, devices & systems, 2020, 14(8): 1129-1134.
[7] UNO M, KUKITA A.Double-switch equalizer using parallel- or series-parallel-resonant inverter and voltage multiplier for series-connected supercapacitors[J]. IEEE transactions on power electronics, 2014, 29(2): 812-828.
[8] PHUNG T H, COLLET A, CREBIER J.An optimized topology for next-to-next balancing of series-connected lithium-ion cells[J]. IEEE transactions on power electronics, 2014, 29(9): 4603-4613.
[9] YE Y M, CHENG K W E, YEUNG Y P B. Zero-current switching switched-capacitor zero-voltage-gap automatic equalization system for series battery string[J]. IEEE transactions on power electronics, 2012, 27(7): 3234-3242.
[10] 刘征宇, 武银行, 李鹏飞, 等. 基于Cuk斩波电路的电池组均衡方法[J]. 仪器仪表学报, 2019, 40(2): 233-241.
LIU Z Y, WU Y H, LI P F, et al.Battery pack equalization method based on Cuk chopper circuit[J]. Chinese journal of scientific instrument, 2019, 40(2): 233-241.
[11] SHANG Y L, XIA B, ZHANG C H, et al.An automatic equalizer based on forward-flyback converter for series-connected battery strings[J]. IEEE transactions on industrial electronics, 2017, 64(7): 5380-5391.
[12] 林鸿业, 康龙云, 卢楚生, 等. 基于电感储能的新型锂离子电池组C2C均衡电路[J]. 电力电子技术, 2020, 54(7): 39-41.
LIN H Y, KANG L Y, LU C S, et al.A novel lithium-ion battery pack C2C equalization circuit based on inductive energy storage[J]. Power electronics, 2020, 54(7): 39-41.
[13] 郑征, 王肖帅, 李斌, 等. 基于三绕组变压器的锂电池组自适应交错控制均衡方案[J]. 储能科学与技术, 2022, 11(4): 1131-1140.
ZHENG Z, WANG X S, LI B, et al.Adaptive interleaved control equalization for lithium-ion battery packs based on three-winding transformers[J]. Energy storage science and technology, 2022, 11(4): 1131-1140.
[14] GUO X W, GENG J H, LIU Z, et al.A flyback converter-based hybrid balancing method for series-connected battery pack in electric vehicles[J]. IEEE transactions on vehicular technology, 2021, 70(7): 6626-6635.
[15] 郭向伟, 耿佳豪, 康龙云, 等. 串联电池组双准则双电压自适应均衡研究[J]. 电力电子技术, 2020, 54(4): 26-28.
GUO X W, GENG J H, KANG L Y, et al.Research on double-criteria dual-voltage adaptive equalization technology for series battery packs[J]. Power electronics, 2020, 54(4): 26-28.
[16] TAVAKOLI A, KHAJEHODDIN S A, SALMON J.A modular battery voltage-balancing system using a series-connected topology[J]. IEEE transactions on power electronics, 2020, 35(6): 5952-5964.
[17] YANG Y D, HU K Y, TSAI C H.Digital battery management design for point-of-load applications with cell balancing[J]. IEEE transactions on industrial electronics, 2020, 67(8): 6365-6375.
[18] LI Y, XU J, MEI X S, et al.A unitized multiwinding transformer-based equalization method for series-connected battery strings[J]. IEEE transactions on power electronics, 2019, 34(12): 11981-11989.
[19] 邹大中, 陈浩舟, 李勋, 等. 基于云端充电数据的锂电池组一致性评价方法[J]. 电网技术, 2022, 46(3): 1049-1064.
ZOU D Z, CHEN H Z, LI X, et al.Cell-to-cell variation evaluation for lithium-ion battery packs in electric vehicles with cloud charging data[J]. Power system technology, 2022, 46(3): 1049-1064.
[20] 郭向伟, 刘震, 康龙云, 等. 一种单电感串并联电池组均衡方法[J]. 电机与控制学报, 2021, 25(12): 87-95.
GUO X W, LIU Z, KANG L Y, et al.Series-parallel battery pack balancing method with single inductor[J]. Electric machines and control, 2021, 25(12): 87-95.