锂离子电池间歇—正负脉冲优化充电方法研究
发布时间：2019-04-03 09:07
【摘要】：日益严重的环境污染导致气候的恶劣变化让人们深刻的认识到保护环境的重要性。采用化石能源的传统汽车所排放尾气对环境有极大的危害因此备受争议，节能减排的燃料汽车、电动汽车（Electric Vehicle，EV）和混合动力电动汽车（HybridElectric Vehicles，HEV）因具有较高的性能、较低的排放和续驶里程长等优点受到世人的青睐，得到了快速发展。动力蓄电池是HEV和EV的动力源，动力蓄电池充电技术对HEV和EV的应用与发展非常重要，因而也成为清洁能源汽车产业中的一个研究热点。 蓄电池在充电过程中存在着极化现象，极化现象对蓄电池快速充电的效率、时间、温度以及蓄电池循环充电寿命有着较大影响，传统的快速充电方法在一定程度上提高了蓄电池的充电速度，但这些方法不能针对不同工作需要进行工作模式切换，消除极化的效果不够明显，因此，需要的充电时间相对较长、能源利用率较低，对蓄电池损害也较大，导致能源的缺失和环境的污染。本文在研究传统快速充电方法的基础之上，对其进行改进，提出间歇-正负脉冲充电方法对蓄电池进行快速充电。具体研究内容如下： 1、本文选择锂离子电池为研究对象，对锂离子电池的工作原理、特性以及充电过程中的极化现象的分析，并重点分析了极化现象对锂离子电池充电的影响。 2、在对传统快速充电方法的研究基础之上，比较极化问题的解决方法，对去极化措施进行改进，，提出间歇-正负脉冲充电方法，通过判断锂离子电池在充电过程中的不同状况，选择合适的充电电流，同时适时的加入间歇和负脉冲对其进行去极化。 3、研究如何确定极化程度以及消除极化的方法。本文通过设计模糊控制器1、模糊控制器2，分别确定去极化给定时间以及去极化负脉冲宽度，使充电过程一直处于最佳状态下。并对间歇-正负脉冲的充电方法进行了实验验证，通过分析结果表明，该方法能有效的提高充电效率，缩短充电时间。 4、设计锂离子电池快速充电系统的部分硬件电路以及软件流程图，并对快速充电系统功能进行测试。 本文研究的快速充电方法，适合于HEV、EV、电动助力自行车以及使用动力电池作为储能装置的二次电源等场合。
[Abstract]:Increasingly serious environmental pollution leads to bad climate change, which makes people realize the importance of protecting the environment deeply. The exhaust gas from traditional automobile with fossil energy has great harm to the environment, so it is controversial that fuel vehicle, electric vehicle (Electric Vehicle,EV) and hybrid electric vehicle (HybridElectric Vehicles,HEV) with energy saving and emission reduction have high performance. The advantages of low emission and long driving mileage have been favored by the world and developed rapidly. Power battery is the power source of HEV and EV. The charging technology of power battery is very important to the application and development of HEV and EV, so it has become a research hotspot in clean energy automobile industry. Polarization phenomenon exists in the process of battery charging. Polarization phenomenon has a great influence on the efficiency, time, temperature and cycle charging life of the battery, and the polarization phenomenon has a great influence on the efficiency, time, temperature and cycle life of the battery. The traditional fast charging method improves the charging speed of the battery to a certain extent, but these methods can not change the working mode according to the different working needs, and the effect of depolarization is not obvious enough, so the effect of depolarization is not obvious. The charging time required is relatively long, the energy efficiency is low, and the battery is damaged greatly, which leads to the lack of energy and the pollution of the environment. Based on the study of the traditional fast charging method, this paper proposes the intermittent-positive-negative pulse charging method for the rapid charging of the battery. The specific research contents are as follows: 1. In this paper, Li-ion battery is selected as the research object, and the working principle, characteristics and polarization phenomenon of lithium-ion battery are analyzed. The effect of polarization on the charge of Li-ion battery is analyzed. 2. Based on the research of the traditional fast charging method, the solution of polarization problem is compared, and the depolarization method is improved, and the intermittent-positive-negative pulse charging method is put forward. By judging the different conditions of lithium-ion battery in the process of charging, the appropriate charging current is selected and the intermittent and negative pulses are added to depolarize the lithium-ion battery at the same time. Thirdly, how to determine the degree of polarization and the method of depolarization are studied. In this paper, the fuzzy controller 1 and the fuzzy controller 2 are designed to determine the given time of depolarization and the negative pulse width of depolarization respectively, so that the charging process is always in the optimal state. The experimental results of the intermittent-positive-negative pulse charging method show that the method can effectively improve the charging efficiency and shorten the charging time. 4. The hardware circuit and software flow chart of the fast charging system of lithium ion battery are designed, and the function of the fast charging system is tested. The fast charging method studied in this paper is suitable for the HEV,EV, electric power bicycle and the secondary power supply using the power battery as the energy storage device and so on.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM912
本文编号：2453092
[Abstract]:Increasingly serious environmental pollution leads to bad climate change, which makes people realize the importance of protecting the environment deeply. The exhaust gas from traditional automobile with fossil energy has great harm to the environment, so it is controversial that fuel vehicle, electric vehicle (Electric Vehicle,EV) and hybrid electric vehicle (HybridElectric Vehicles,HEV) with energy saving and emission reduction have high performance. The advantages of low emission and long driving mileage have been favored by the world and developed rapidly. Power battery is the power source of HEV and EV. The charging technology of power battery is very important to the application and development of HEV and EV, so it has become a research hotspot in clean energy automobile industry. Polarization phenomenon exists in the process of battery charging. Polarization phenomenon has a great influence on the efficiency, time, temperature and cycle charging life of the battery, and the polarization phenomenon has a great influence on the efficiency, time, temperature and cycle life of the battery. The traditional fast charging method improves the charging speed of the battery to a certain extent, but these methods can not change the working mode according to the different working needs, and the effect of depolarization is not obvious enough, so the effect of depolarization is not obvious. The charging time required is relatively long, the energy efficiency is low, and the battery is damaged greatly, which leads to the lack of energy and the pollution of the environment. Based on the study of the traditional fast charging method, this paper proposes the intermittent-positive-negative pulse charging method for the rapid charging of the battery. The specific research contents are as follows: 1. In this paper, Li-ion battery is selected as the research object, and the working principle, characteristics and polarization phenomenon of lithium-ion battery are analyzed. The effect of polarization on the charge of Li-ion battery is analyzed. 2. Based on the research of the traditional fast charging method, the solution of polarization problem is compared, and the depolarization method is improved, and the intermittent-positive-negative pulse charging method is put forward. By judging the different conditions of lithium-ion battery in the process of charging, the appropriate charging current is selected and the intermittent and negative pulses are added to depolarize the lithium-ion battery at the same time. Thirdly, how to determine the degree of polarization and the method of depolarization are studied. In this paper, the fuzzy controller 1 and the fuzzy controller 2 are designed to determine the given time of depolarization and the negative pulse width of depolarization respectively, so that the charging process is always in the optimal state. The experimental results of the intermittent-positive-negative pulse charging method show that the method can effectively improve the charging efficiency and shorten the charging time. 4. The hardware circuit and software flow chart of the fast charging system of lithium ion battery are designed, and the function of the fast charging system is tested. The fast charging method studied in this paper is suitable for the HEV,EV, electric power bicycle and the secondary power supply using the power battery as the energy storage device and so on.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM912
【参考文献】
相关期刊论文 前10条
1 张维戈,姜久春,周希德;动力蓄电池微机控制充放电装置的研制[J];北方交通大学学报;1998年06期
2 陈体衔,甄春花;VRLA蓄电池变电流间歇快速充电方法[J];蓄电池;1999年01期
3 张传喜;;锂离子动力电池安全性研究进展[J];船电技术;2009年04期
4 黄可龙,吕正中,刘素琴;锂离子电池容量损失原因分析[J];电池;2001年03期
5 王坚;慢脉冲快速充电控制电池极化的研究[J];电池;2003年06期
6 雷娟;蒋新华;解晶莹;;锂离子电池组均衡电路的发展现状[J];电池;2007年01期
7 李匡成;范艳成;胡旭杰;何作;;基于模糊控制的铅酸蓄电池智能充电系统设计[J];电力电子技术;2010年11期
8 杨方;张义斌;葛旭波;;中美日电动汽车发展趋势及特点分析[J];能源技术经济;2011年07期
9 张文亮;武斌;李武峰;来小康;;我国纯电动汽车的发展方向及能源供给模式的探讨[J];电网技术;2009年04期
10 毕大成,周希德;电动汽车铅酸蓄电池快速充电方法的研究[J];电源技术;2000年03期
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