基于单片机的动力电池组均衡控制系统的设计.pdf

毕业设计论文题目论文题目：学学生生：指导教师指导教师：专专业业：班班级级：III基于单片机的动力电池组均衡控制系统的设计摘摘 要要随着全球经济的迅速发展，世界各国的汽车拥有量正在以前所未有的速度增长但是，迫于石油能源开始紧缺以及环境污染的加剧，各种动力电池开始被广泛使用在汽车行业，并且越来越受到用户的青睐目前，由于动力电池制造水平的限制，动力电池必须以多级串并联的方式才能提供足够驱动汽车的功率而在动力电池的串联应用中，出现的容量不均衡问题严重影响了电池能量的利用率和使用寿命为了解决这个问题，本文将重点研究 16 节锂离子电池的动力电池组管理控制系统，讲述锂离子电池组管理控制系统的特点及基本工作原理在硬件设计方面，采用单片机控制，采取模块化的设计思路，详细研究了锂离子电池组管理控制系统的控制方案，并且对电压采集模块、均衡管理模块以及数据通信模块进行设计，绘制相关电路原理图和 PCB 图，在此基础上对各模块的算法实现流程进行设计，完成相关的程序编写关键词：关键词：电池管理系统；均衡电路；控制系统；单片机IIThe Design of Equalization Control System for PowerBattery Pack Based On MCUAbstractWith the rapid development of global economy, the number of car ownership inmany countries around the world are growing at an unprecedented rate. However, variouspower batteries begin to be widely used in the automotive industry under the pressure ofshortage of oil energy and aggravation of the environmental pollution and become moreand more popular. At present, because of the limitation of the manufacture level of powerbattery, power battery can only provide sufficient power to drive the car in the form ofmulti-stage series-parallel connection. While in the series application of power battery, thecapacity of the disequilibrium problems seriously affected the efficiency and service lifeof the battery power. In order to solve this problem, this article will focus on 16 section ofthelithium-ionbattery’spowerbatterymanagementsystemandintroducethecharacteristics of lithium-ion battery management system and the basic working principle.In the matter of hardware design, the article adopted modular design ideas; detailed thecontrol scheme of the management system of lithium-ion battery and designed the voltageacquisition module; balanced management module and data communication module.Meanwhile, on the basis of drawing the circuit principle diagram and PCB diagram, thepaper designed the algorithm implementation process of every module and had relevantprogram writing completed.Keywords: Battery management system; Equalization circuit; Control system;MCUI目 录摘摘 要要............................................................................................................................................ IAbstract......................................................................................................................................II1绪论绪论........................................................................................................................................11.1 基于单片机的动力电池组均衡控制系统设计的目的和意义...............................11.2 国内外研究现状及分析..............................................................................................41.3 本课题主要研究的内容..............................................................................................72系统总体系统总体方案方案设计设计.............................................................................................................. 82.1 锂离子电池组不一致性分析.....................................................................................82.1.1 锂离子电池组不一致性的产生原因..............................................................82.1.2 锂离子电池组不一致性的表现形式............................................................102.2 均衡变量的确定........................................................................................................112.3 控制系统总体方案设计............................................................................................123单片机控制均衡控制系统单片机控制均衡控制系统硬件硬件设计设计...............................................................................133.1 控制电路的研究与设计............................................................................................133.1.1 常见的几种均衡电路.....................................................................................133.1.2 本文所采用的均衡电路.................................................................................173.2 单片机控制均衡控制系统的硬件电路设计..........................................................213.2.1 主控芯片的选型与设计....................................................错误！未定义书签。

错误！未定义书签3.2.2 均衡模块电路设计............................................................错误！未定义书签错误！未定义书签3.2.3 电池电压检测模块设计....................................................错误！未定义书签错误！未定义书签4控制控制系统软件设计系统软件设计...............................................................................错误！未定义书签错误！未定义书签4.1 控制策略设计...............................................................................错误！未定义书签错误！未定义书签4.2 系统软件设计...............................................................................错误！未定义书签错误！未定义书签。

4.2.1 系统主程序流程图............................................................错误！未定义书签错误！未定义书签4.2.2 电压检测程序流程图........................................................错误！未定义书签错误！未定义书签4.2.3 控制程序流程图.................................................................错误！未定义书签错误！未定义书签II总总 结结..........................................................................................................................................22致致 谢谢.........................................................................................................................。