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Optimal algorithms for the charge equalisation controller of series connected lithium-ion battery cells in electric vehicle applications

Optimal algorithms for the charge equalisation controller of series connected lithium-ion battery cells in electric vehicle applications

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A charge equalisation controller (CEC) was developed for continuously monitoring individual battery cells and equalising the charge or voltage levels of all cells in a series pack. A charge equalisation control algorithm was developed to equalise undercharged, overcharged, and unprotected cells through the use of a bidirectional fly-back converter. The equalisation involves charging and discharging by employing constant current–constant voltage and discontinuous current mode proportional–integral (PI) control techniques. Particle swarm optimisation is applied to optimising the PI controller parameters that generate the regulated pulse width modulation switching signal for the converter. A CEC model was applied to 90 lithium-ion battery cells (nominally 15.5 Ah and 3.7 V each) connected in series. The results showed that the developed CEC model performed well at equalising both undercharged and overcharged cells with ∼92% efficiency and equalised every cell within the safe operation range of 3.73–3.87 V. The developed system realises excellent equalisation speed, a simple design and efficiency with low power loss. Thus, the CEC model has great potential for implementation in real-world electric vehicle energy storage systems.

References

    1. 1)
      • H. Fathabadi .
        1. Fathabadi, H.: ‘Lithium-ion battery equipped with AC feature for using in electric/hybrid vehicles’, IET Electr. Syst. Transp., 2015, 5, (3), pp. 95102.
        . IET Electr. Syst. Transp. , 3 , 95 - 102
    2. 2)
      • M.A. Hannan , M.M. Hoque , A. Mohamed .
        2. Hannan, M.A., Hoque, M.M., Mohamed, A., et al: ‘Review of energy storage systems for electric vehicle applications: issues and challenges’, Renew. Sustain. Energy Rev., 2017, 69, pp. 771789.
        . Renew. Sustain. Energy Rev. , 771 - 789
    3. 3)
      • V.R. Tannahill , D. Sutanto , K.M. Muttaqi .
        3. Tannahill, V.R., Sutanto, D., Muttaqi, K.M., et al: ‘Future vision for reduction of range anxiety by using an improved state of charge estimation algorithm for electric vehicle batteries implemented with low-cost microcontrollers’, IET Electr. Syst. Transp., 2015, 5, (1), pp. 2432.
        . IET Electr. Syst. Transp. , 1 , 24 - 32
    4. 4)
      • J. Oakley , M.P. McHenry , T. Bräunl .
        4. Oakley, J., McHenry, M.P., Bräunl, T.: ‘Limitations of testing standards for battery electric vehicles: accessories, energy usage, and range’, IET Electr. Syst. Transp., 2016, 6, (3), pp. 215221.
        . IET Electr. Syst. Transp. , 3 , 215 - 221
    5. 5)
      • M.W. Cheng , Y.S. Lee , M. Liu .
        5. Cheng, M.W., Lee, Y.S., Liu, M., et al: ‘State-of-charge estimation with aging effect and correction for lithium-ion battery’, IET Electr. Syst. Transp., 2015, 5, (2), pp. 7076.
        . IET Electr. Syst. Transp. , 2 , 70 - 76
    6. 6)
      • S. Lehner , T. Baumhöfer , D.U. Sauer .
        6. Lehner, S., Baumhöfer, T., Sauer, D.U.: ‘Disparity in initial and lifetime parameters of lithium-ion cells’, IET Electr. Syst. Transp., 2016, 6, (1), pp. 3440.
        . IET Electr. Syst. Transp. , 1 , 34 - 40
    7. 7)
      • F. Feng , R. Lu , G. Wei .
        7. Feng, F., Lu, R., Wei, G., et al: ‘Identification and analysis of model parameters used for LiFePO4 cells series battery pack at various ambient temperature’, IET Electr. Syst. Transp., 2016, 6, (2), pp. 5055.
        . IET Electr. Syst. Transp. , 2 , 50 - 55
    8. 8)
      • M.M. Hoque , M.A. Hannan , A. Mohamed .
        8. Hoque, M.M., Hannan, M.A., Mohamed, A.: ‘Charging and discharging model of lithium-ion battery for charge equalization control using particle swarm optimization algorithm’, J. Renew. Sustain. Energy, 2016, 8, (065701), pp. 116.
        . J. Renew. Sustain. Energy , 65701 , 1 - 16
    9. 9)
      • F. Baronti , R. Roncella , R. Saletti .
        9. Baronti, F., Roncella, R., Saletti, R.: ‘Performance comparison of active balancing techniques for lithium-ion batteries’, J. Power Sources, 2014, 267, pp. 603609.
        . J. Power Sources , 603 - 609
    10. 10)
      • J.C. Lin .
        10. Lin, J.C.: ‘Development of a two-staged balancing scheme for charging lithium iron cells in series’, IET Electr. Syst. Transp., 2016, 6, (3), pp. 145152.
        . IET Electr. Syst. Transp. , 3 , 145 - 152
    11. 11)
      • H.S. Park , C.E. Kim , C.H. Kim .
        11. Park, H.S., Kim, C.E., Kim, C.H., et al: ‘A modularized charge equalizer for an HEV lithium-ion battery string’, IEEE Trans. Ind. Electron., 2009, 56, (5), pp. 14641476.
        . IEEE Trans. Ind. Electron. , 5 , 1464 - 1476
    12. 12)
      • M.Y. Kim , C.H. Kim , J.H. Kim .
        12. Kim, M.Y., Kim, C.H., Kim, J.H., et al: ‘A chain structure of switched capacitor for improved cell balancing speed of lithium-ion batteries’, IEEE Trans. Ind. Electron., 2014, 61, (8), pp. 39893999.
        . IEEE Trans. Ind. Electron. , 8 , 3989 - 3999
    13. 13)
      • S. Li , C. Mi , M. Zhang .
        13. Li, S., Mi, C., Zhang, M.: ‘A high-efficiency active battery-balancing circuit using multiwinding transformer’, IEEE Trans. Ind. Appl., 2013, 49, pp. 198207.
        . IEEE Trans. Ind. Appl. , 198 - 207
    14. 14)
      • R. Ling , Q. Dan , L. Wang .
        14. Ling, R., Dan, Q., Wang, L.: ‘Energy bus-based equalization scheme with bidirectional isolated Cuk equalizer for series connected battery strings’. Proc. IEEE Applied Power Electronics Conf. and Exposition (APEC), North Carolina, USA, March 2015, pp. 33353340.
        . Proc. IEEE Applied Power Electronics Conf. and Exposition (APEC) , 3335 - 3340
    15. 15)
      • T.H. Wu , C.S. Chang , C.S. Moo .
        15. Wu, T.H., Chang, C.S., Moo, C.S.: ‘A charging scenario for parallel buck-boost battery power modules with full power utilization and charge equalization’. Proc. IEEE Int. Conf. Industrial Technology (ICIT), Seville, Spain, March 2015, pp. 860865.
        . Proc. IEEE Int. Conf. Industrial Technology (ICIT) , 860 - 865
    16. 16)
      • K.M. Lee , Y.C. Chung , C.H. Sung .
        16. Lee, K.M., Chung, Y.C., Sung, C.H., et al: ‘Active cell balancing of Li-ion batteries using LC series resonant circuit’, IEEE Trans. Ind. Electron., 2015, 62, (9), pp. 54915501.
        . IEEE Trans. Ind. Electron. , 9 , 5491 - 5501
    17. 17)
      • M. Imtiaz , F.H. Khan .
        17. Imtiaz, M., Khan, F.H.: ‘Time shared flyback converter based regenerative cell balancing technique for series connected Li-ion battery strings’, IEEE Trans. Power Electron., 2013, 28, (12), pp. 59605975.
        . IEEE Trans. Power Electron. , 12 , 5960 - 5975
    18. 18)
      • E. Chatzinikolaou , D.J. Rogers .
        18. Chatzinikolaou, E., Rogers, D.J.: ‘Cell SoC balancing using a cascaded full-bridge multilevel converter in battery energy storage systems’, IEEE Trans. Ind. Electron., 2016, 63, (9), pp. 53945402.
        . IEEE Trans. Ind. Electron. , 9 , 5394 - 5402
    19. 19)
      • Y. Wang , C. Zhang , Z. Chen .
        19. Wang, Y., Zhang, C., Chen, Z., et al: ‘A novel active equalization method for lithium-ion batteries in electric vehicles’, Appl. Energy, 2015, 145, pp. 3642.
        . Appl. Energy , 36 - 42
    20. 20)
      • J. Wei , G. Dong , Z. Chen .
        20. Wei, J., Dong, G., Chen, Z., et al: ‘System state estimation and optimal energy control framework for multicell lithium-ion battery system’, Appl. Energy, 2017, 187, pp. 3749.
        . Appl. Energy , 37 - 49
    21. 21)
      • Y. Wang , C. Zhang , Z. Chen .
        21. Wang, Y., Zhang, C., Chen, Z.: ‘An adaptive remaining energy prediction approach for lithium-ion batteries in electric vehicles’, J. Power Sources, 2016, 305, pp. 8088.
        . J. Power Sources , 80 - 88
    22. 22)
      • S. Yu , M.Q. Nguyen , W. Choi .
        22. Yu, S., Nguyen, M.Q., Choi, W.: ‘A novel soft-switching battery charge/discharge converter with the zero voltage discharge function’, IEEE Trans. Power Electron., 2016, 31, pp. 50675078.
        . IEEE Trans. Power Electron. , 5067 - 5078
    23. 23)
      • P.C.P. Chao , W.D. Chen , R.H. Wu .
        23. Chao, P.C.P., Chen, W.D., Wu, R.H.: ‘A battery charge controller realized by a flyback converter with digital primary side regulation for mobile phones’, Microsyst. Technol., 2014, 20, pp. 16891703.
        . Microsyst. Technol. , 1689 - 1703
    24. 24)
      • C.P.C. Paul , W.D. Chen , C.W. Cheng .
        24. Paul, C.P.C., Chen, W.D., Cheng, C.W.: ‘A fast charging algorithm for an intelligent PV system with capability of on-line temperature compensation’, Microsyst. Technol., 2013, 19, pp. 12891306.
        . Microsyst. Technol. , 1289 - 1306
    25. 25)
      • L.R. Chen , N.Y. Chu , C.S. Wang .
        25. Chen, L.R., Chu, N.Y., Wang, C.S., et al: ‘Design of a reflex based bidirectional converter with the energy recovery function’, IEEE Trans. Ind. Electron., 2008, 55, pp. 30223029.
        . IEEE Trans. Ind. Electron. , 3022 - 3029
    26. 26)
      • O. Tremblay , L.A. Dessaint , A.I. Dekkiche .
        26. Tremblay, O., Dessaint, L.A., Dekkiche, A.I.: ‘A generic battery model for the dynamic simulation of hybrid electric vehicles’. Proc. IEEE Vehicle Power and Propulsion Conf. (VPPC), Arlington, TX, USA, September 2007, pp. 284289.
        . Proc. IEEE Vehicle Power and Propulsion Conf. (VPPC) , 284 - 289
    27. 27)
      • X. Hu , S.E. Li , Y. Yang .
        27. Hu, X., Li, S.E., Yang, Y.: ‘Advanced machine learning approach for lithium-ion battery state estimation in electric vehicles’, IEEE Trans. Transport. Electrific., 2016, 2, (2), pp. 140149.
        . IEEE Trans. Transport. Electrific. , 2 , 140 - 149
    28. 28)
      • P. Malysz , R. Gu , J. Ye .
        28. Malysz, P., Gu, R., Ye, J., et al: ‘State-of-charge and state-of-health estimation with state constraints and current sensor bias correction for electrified powertrain vehicle batteries’, IET Electr. Syst. Transp., 2016, 6, (2), pp. 136144.
        . IET Electr. Syst. Transp. , 2 , 136 - 144
    29. 29)
      • L. Pei , R. Lu , C. Zhu .
        29. Pei, L., Lu, R., Zhu, C.: ‘Relaxation model of the open-circuit voltage for state-of-charge estimation in lithium-ion batteries’, IET Electr. Syst. Transp., 2013, 3, (4), pp. 112117.
        . IET Electr. Syst. Transp. , 4 , 112 - 117
    30. 30)
      • Z. Chen , Y. Fu , C.C. Mi .
        30. Chen, Z., Fu, Y., Mi, C.C.: ‘State of charge estimation of lithium-ion batteries in electric drive vehicles using extended Kalman filtering’, IEEE Trans. Veh. Technol., 2013, 62, (3), pp. 10201030.
        . IEEE Trans. Veh. Technol. , 3 , 1020 - 1030
    31. 31)
      • M.S. El-Din , M.F. Abdel-Hafez , A.A. Hussein .
        31. El-Din, M.S., Abdel-Hafez, M.F., Hussein, A.A.: ‘Enhancement in Li-ion battery cell state-of-charge estimation under uncertain model statistics’, IEEE Trans. Veh. Technol., 2016, 65, (6), pp. 46084618.
        . IEEE Trans. Veh. Technol. , 6 , 4608 - 4618
    32. 32)
      • X. Tang , Y. Wang , Z. Chen .
        32. Tang, X., Wang, Y., Chen, Z.: ‘A method for state-of-charge estimation of LiFePO4 batteries based on a dual-circuit state observer’, J. Power Sources, 2015, 296, pp. 2329.
        . J. Power Sources , 23 - 29
    33. 33)
      • M.M. Hoque , M.A. Hannan , A. Mohamed .
        33. Hoque, M.M., Hannan, M.A., Mohamed, A.: ‘Voltage equalization control algorithm for monitoring and balancing of series connected lithium-ion battery’, J. Renew. Sustain. Energy, 2016, 8, (025703), pp. 115.
        . J. Renew. Sustain. Energy , 25703 , 1 - 15
    34. 34)
      • M.K. Kazimierczuk . (2008)
        34. Kazimierczuk, M.K.: ‘Flyback PWM DC–DC converter’, in ‘Pulse-width modulated DC–DC power converters’ (John Wiley & Sons, UK, 2008, 1st edn.), pp. 189237.
        .
    35. 35)
      • Y.P. Yang , Y.C. Shih , J.M. Chen .
        35. Yang, Y.P., Shih, Y.C., Chen, J.M.: ‘Real-time torque-distribution strategy for a pure electric vehicle with multiple traction motors by particle swarm optimisation’, IET Electr. Syst. Transp., 2016, 6, (2), pp. 7687.
        . IET Electr. Syst. Transp. , 2 , 76 - 87
    36. 36)
      • M.A. Rahman , S. Anwar , A. Izadian .
        36. Rahman, M.A., Anwar, S., Izadian, A.: ‘Electrochemical model parameter identification of a lithium-ion battery using particle swarm optimization method’, J. Power Sources, 2016, 307, pp. 8697.
        . J. Power Sources , 86 - 97
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