The invention discloses an active equalization control system for a power battery pack. The active equalization control system comprises the power battery pack, an information acquisition module, a main control module, a DC/DC module, an overcurrent protection module, an equalization control module and an equalization circuit module, one end of the information acquisition module is connected with each single battery in the power battery pack, and the other end is connected with the main control module; the input end of the equalization control module is connected with the main control module, and the driving end is connected with the power battery pack through the equalization circuit module; the equalization circuit module comprises a switching network formed by connecting a plurality of groups of analog electronic switches and rectifier diodes in series, and a switching tube is connected to each node of the series battery pack through the rectifier diodes. The inductor is used as an energy storage element, the energy transfer direction is determined by the MOS switch tube, energy transfer between any two batteries in the battery pack can be achieved, energy loss caused by redundant charging and discharging is avoided, and the purpose of rapidly and efficiently balancing the power battery pack can be achieved.
本发明公开了一种动力电池组主动均衡控制系统,包括动力电池组、信息采集模块、主控模块、DC/DC模块、过流保护模块、均衡控制模块和均衡电路模块;信息采集模块的一端与动力电池组中各单体电池连接,另一端与主控模块连接;均衡控制模块的输入端与主控模块连接,驱动端通过均衡电路模块与动力电池组连接;均衡电路模块包括多组模拟电子开关和整流二极管串联组成的开关网络,开关管通过整流二极管连接到串联电池组的每一个节点处。本发明以电感为储能元件,由MOS开关管决定能量传递方向,能实现电池组内任意两节电池间能量的传递,避免多余充放电造成的能量损耗,能够达到快速、高效均衡动力电池组的目的。
Active equalization control system for power battery pack
一种动力电池组主动均衡控制系统
2021-10-12
Patent
Electronic Resource
Chinese
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