simulink动力电池充电技术研究仿真.docVIP

simulink动力电池充电技术研究仿真 摘要锂离子/锂聚合物电池是90年代发展起来的一种新型二次电池，它具有单体工作电压高、体积小、重量轻、能量密度高、循环使用寿命长、自放电电流小、无记忆效应、无污染和性价比高等优点；而且锂离子电池的放电曲线很平坦,可以在电池的整个放电期间内产生稳定的功率。因此，锂电池称为动力电池的首选。 本论文在对锂离子/锂聚合物电池电化学原理和外特性进行分析的基础上，对锂离子电池内部结构进行分析，其工作过程，基本容量，SOC特性等进行分析。在此基础上对锂离子电池的现有的恒压充电、恒流充电、恒压-恒流充电、脉冲充电和智能充电这五种充电方式进行概括分析，对它们的充电原理和充电特性曲线进行分析了解。然后选择其中的恒定电压充电、恒压-恒流充电、智能充电三种充电方式进行电路结构原理分析，并对其用simulink软件进行仿真，最后再对仿真结果波形图分析。9745 关键词电动汽车锂离子电池充电方式电路仿真毕业设计论文外文摘要 TitleBattery charging technology Abstract Lithium-Ion/Lithium-Polymer battery is a new kind of rechargeable bakery developed since 90rsquo;S.It has monomer high voltage and small size.It also has light weight with high energy density and long cycle life.Its self-discharge current is small.It also has no memory effect,non-polluting and cost advantages.The lithium-ion battery discharge curve is very flat with stable power throughout the discharge period of the battery.Therefore,lithium is very suitable for practical applications,especially in pure electric vehicle energy storage system. Analyzed on the basis of analysis of lithium ion / lithium polymer battery electrochemistry and external characteristics of the internal structure of the lithium-ion battery , the course of their work , the basic capacity, SOC characteristics were analyzed . On this basis, the existing lithium-ion battery constant voltage charging , constant current charging, constant voltage - constant current charging , pulse charging and smart charging method for charging the five general analysis of the charging principles and charge characteristic curve analysis to understand . Then select one of the constant voltage charging , constant voltage - constant current charging intelligent charging three charging circuit structure principle , and make use of the simulation simulink software,and finally the simulation results waveform analysis . 2纯电动汽车 2.1纯电动汽车的发展 随着工业发展和社会需求的增加，汽车在社会进步和经济发展中扮演着重要的角色。汽车工业的迅速发展，推动了机械、能源、橡胶、钢铁等重要产业的发展，但同时也日益面临着环境污染、能源短缺的严重问题。 能源短缺目前已成为全球性的问题。由于传统汽车