动力电池均衡充放电系统的研究和设计  

Research and design of charge-discharge equalization system for power battery

作　　者：戴冬冰[1] 冯冬梅[1] 张军[2] 刘正光[2] Dai Dongbing;Feng Dongmei;Zhang Jun;Liu Zhengguang(School of Information Science and Engineering,Tianjin Tianshi College,Tianjin 301700,China;School of Electrical Engineering and Automation,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津天狮学院信息科学与工程学院,天津301700 [2]天津大学电气工程与自动化学院,天津300072

出　　处：《国外电子测量技术》2021年第11期111-115,共5页Foreign Electronic Measurement Technology

基　　金：国家自然科学基金(51877149)项目资助。

摘　　要：动力电池是一种能提供大功率且具有高能量密度的新型电源,动力电池组由多达几十个甚至上百个的单体电池串联组成。研究先进的电池动态均衡充电和放电技术,能够充分发挥电池的效用;延长电池的寿命,具有较高的实用价值和经济意义。在分析对比了几种均衡充放电系统的结构和优缺点的基础上,提出了两种新型均衡器电路,即脉冲宽度调制(PWM)控制和PID控制均衡器,构建了均衡器系统结构,用Multisim对电路进行仿真,并进行实验测试,实验结果验证了所提出电路模型的有效性及优越性。均衡器核心部件恒流源精度达到0.1%,研究成果可用于对动力电池管理系统的优化与改进。The power battery is a new type of power source that can provide high power and high energy density.A power battery pack consists of dozens or even hundreds of single cells connected in series.Aiming to improve the usage of the battery and to extend its lifespan,research on advanced technology on dynamic charging and discharging equalization control may bring practical value and economic significance to us.This paper analyzes and compares the structure and characteristics of multiple types of charging and discharging equalization strategy,and then proposes two new equalizer circuits.That is PWM control and PID control equalizer.Then a structure of equalizer system is constructed.Finally,the application of this design is simulated with Multisim and tested experimentally.The simulation results demonstrate the effectiveness and superiority of the proposed model.The solution in the research may contribute to the optimization of the power battery management system.

关 键 词：动力电池 均衡 充放电 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]