Integrated BMS-MMC Balancing Technique Highlighted by a Novel Space-Vector Based Approach for BEVs Application
Integrated BMS-MMC Balancing Technique Highlighted by a Novel Space-Vector Based Approach for BEVs Application
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DOI：
10.3390/en10101628
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发表时间：
2017-10
期刊：
影响因子：
3.2
通讯作者：
G. Brando;A. Dannier;I. Spina;P. Tricoli
中科院分区：
文献类型：
--
作者：
G. Brando;A. Dannier;I. Spina;P. Tricoli
本文提出了一种适用于电池电动汽车的模块化多电平变换器的新型数学模型，该模型采用空间矢量，能够对电池管理系统的电池单元均衡进行关键分析。具体而言，研究了功率均衡的要求以及控制的实际自由度数量。本文表明，传统的电池单元均衡方法是所提出控制方法的一种特殊情况。利用Matlab/Simulink™进行的数值分析突出了在电池电动汽车特定运行条件下，标准均衡技术响应缓慢的原因。本文还提出了通过所建议的通用方法可能实现的潜在改进。
This paper proposes a new mathematical model of modular multilevel converters for battery electric vehicles with space-vectors enabling a critical analysis of cell balancing for the battery management system. In particular, the requirements for power balancing and the actual number of degrees of freedom of the control are investigated. The paper shows that the traditional approach of cell balancing is a special case of the proposed control methodology. Numerical analyses with Matlab/Simulink™ highlight the reasons of the slow response of the standard balancing technique for specific operating conditions of the battery electric vehicle. The paper suggests potential improvements that could be introduced through the proposed generalised approach.