作者：杨坚，张巧杰，赵旭
单位：北京信息科技大学 自动化学院，北京 100192
中图分类号：TM912      
文献标识码：A         
文章编号：1006-883X(2018)01-0019-06
收稿日期：2017-10-12

摘要：为了解决传统电感型均衡电路只能实现电池单体之间能量单向流动、效率低下、结构复杂等问题，提出一种新的均衡电路拓扑，可实现由任何电压高的电池单元向任何电压低的单体电池转移电能，实现电池组间主动平衡。首先，为确保电能可实现双向流动以及均衡电流可工作在连续状态下，对经典Buck-Boost电路进行改进作为串联电池组均衡单元；然后，根据均衡电路特点，计算各个开关管占空比，实现串联电池组间电能由高到低的流动，其次，通过电路分析，推导出均衡电流值；最后在Simulink平台进行仿真实验，证明该均衡电路的有效性。
关键词：均衡电路；主动平衡；电池串联；能量转移

Improved inductance equalization circuit for battery pack 
YANG Jian, ZHANG Qiao-jie, ZHAO Xu
Automation Institute, Beijing Information Science & Technology University, Beijing 100192, China
Abstract: In order to solve the problems of traditional inductance balanced circuits, such as one-way-flow energy between batteries, low efficiency, complex structure and so on, a new balanced circuit topology is presented in this paper, which can transfer electric energy from high voltage battery unit to low voltage battery to achieve the balance between batteries. In order to ensure that the electric energy can achieve two-way-flow and the balanced current can work in continuous state, the classic Buck-Boost circuit is improved at first as a balancing unit for series battery pack. Then, the duty cycle of each switching is calculated according to the characteristics of the balancing circuit to complete electric energy flowing from the high to the low in the series battery pack. Secondly, the balanced current value is derived by analyzing the circuit. Finally, the simulation experiments are done on Simulink platform, and the effectiveness of the balanced circuit is proved.
Key words: equalization circuit; active balance; battery series; energy transfer

阅读全文
 

备注：2018年 第24卷 第01期