基于SOC的串联电池组控流均衡控制策略
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摘要
传统Cuk均衡控制策略能量转移效率低,为维持电池组SOC(State of Charge)一致,文章提出了一种新型控制策略,保证了电池组的控流均衡。根据电池组的能量分布,该均衡控制策略能够实现对均衡器开关、均衡电流方向和大小的控制,提高了整体的能量转移效率。利用Matlab进行模型仿真分析,仿真结果表明,均衡控制策略要比传统均衡控制策略更加有效。
The traditional strategy based on the Cuk equalization circuit has a low energy transfer efficiency. In order to maintain the SOC consistency of battery, a new control strategy is proposed to ensure the control flow balance of the battery pack. According to the different energy distribution of the battery pack, the equalization control strategy can realize the control of the equalizer switch and the direction and size of the equalization current, so as to improve the overall energy transfer efficiency under the condition of maintaining a higher equalization speed. The simulation model is built with MATLAB, the simulation results show that the balanced control strategy is more effective than the traditional balanced control strategy.
The traditional strategy based on the Cuk equalization circuit has a low energy transfer efficiency. In order to maintain the SOC consistency of battery, a new control strategy is proposed to ensure the control flow balance of the battery pack. According to the different energy distribution of the battery pack, the equalization control strategy can realize the control of the equalizer switch and the direction and size of the equalization current, so as to improve the overall energy transfer efficiency under the condition of maintaining a higher equalization speed. The simulation model is built with MATLAB, the simulation results show that the balanced control strategy is more effective than the traditional balanced control strategy.
引文
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[12]黄晓东,郝木凯,陆志刚,等.微网系统中电池储能系统应用技术研究[J].可再生能源,2012,30(1):38-41.
[13]徐明,李相俊,贾学翠,等.规模化电池储能系统的无功功率控制策略研究[J].可再生能源,2013,31(7):81-84.
[14]田锐,秦大同,胡明辉.电池均衡控制策略研究[J].重庆大学学报,2005,28(7):1-4.
[15]杨春雷,刘志远.一种电动汽车动力电池均衡控制方法的设计[J].上海交通大学学报,2011,45(8):1186-1190.
[16]梁光胜,付国强,赖程鹏,等.基于SOC的电池均衡控制技术的仿真研究[J].电源技术,2016,40(2):332-334.
[17]熊永华,杨艳,李浩,等.基于SOC的锂动力电池多层双向自均衡方法[J].电子学报,2014,42(4):766-773.
[2] Lee Y S,Cheng M W. Intelligent control battery equalization for series connected lithium-ion battery strings[J]. IEEE Transactions on Industrial Electronics,2005,52(5):1297-1307.
[3]郑文一,胡社教,牛朝,等.动力电池组主动均衡方案研究[J].电子测量与仪器学报,2014,28(7):710-716.
[4]邱斌斌,刘和平,杨金林,等.一种磷酸铁锂动力电池组主动均衡充电系统[J].电工电能新技术,2014,33(1):71-75.
[5]戴海峰,魏学哲,孙泽昌,等.电动汽车用锂离子动力电池电感主动均衡系统[J].同济大学学报,2013,41(10):1547-1553.
[6] Baronti F,Fantechi G,Roncella R,et al. Design of a module switch for battery pack reconfiguration in highpower applications[A].2012 IEEE International Symposium on Industrial Electronics[C].Hangzhou:IEEE,2012.1330-1335.
[7] Lim C S,Lee K J,Ku N J,et al. A modularized equalization method based on magnetizing energy for a series-connected lithiumion battery string[J].IEEE Transactions on Power Electronics,2014,29(4):1791-1799.
[8]陈涛.电动汽车锂动力电池组均衡系统充放电技术研究[D].哈尔滨:黑龙江大学,2012.
[9] Kim C H, Kim M Y, Moon G W. A modularized charge equalizer using a battery monitoring IC for Series-Connected Li-Ion battery strings in electric vehicles[J]. Power Electronics IEEE Transactions on,2013,28(8):3779-3787.
[10] Ewanchuk J, Salmon J. A modular balancing bridge for series connected voltage sources[J]. IEEE Transactions on Power Electronics,2014,29(9):4712-4722.
[11] Shang Y, Zhang C, Cui N, et al. A Cell-to-Cell battery equalizer with zero-current switching and ZeroVoltage gap based on Quasi-Resonant LC converter and boost converter[J].IEEE Transactions on Power Electronics,2015,30(7):3731-3747.
[12]黄晓东,郝木凯,陆志刚,等.微网系统中电池储能系统应用技术研究[J].可再生能源,2012,30(1):38-41.
[13]徐明,李相俊,贾学翠,等.规模化电池储能系统的无功功率控制策略研究[J].可再生能源,2013,31(7):81-84.
[14]田锐,秦大同,胡明辉.电池均衡控制策略研究[J].重庆大学学报,2005,28(7):1-4.
[15]杨春雷,刘志远.一种电动汽车动力电池均衡控制方法的设计[J].上海交通大学学报,2011,45(8):1186-1190.
[16]梁光胜,付国强,赖程鹏,等.基于SOC的电池均衡控制技术的仿真研究[J].电源技术,2016,40(2):332-334.
[17]熊永华,杨艳,李浩,等.基于SOC的锂动力电池多层双向自均衡方法[J].电子学报,2014,42(4):766-773.