动力电池单体测试系统

发布时间：2018-01-15 01:22

本文关键词：动力电池单体测试系统　出处：《青岛理工大学》2016年硕士论文　论文类型：学位论文

更多相关文章： 锂离子电池 单体 SQLite CAN总线 DSP

【摘要】：近年来,随着人们对环境污染以及能源危机等问题的日益关注,新能源的应用也日益受到人们的重视。各汽车生产企业也将发展新能源汽车作为抢占未来汽车行业制高点的重要战略。我国政府更是把发展新能源汽车作为解决能源问题和环境问题、实现可持续发展道路的重大举措。众所周知,动力电池是新能源汽车的关键核心部件,动力电池性能的提高对新能源汽车的发展起着至关重要的作用。在众多动力电池中,由于锂离子电池具有电压高,容量密度高,体积小、重量轻、循环寿命长、无记忆效应、自放电低等优点,被公认为理想的储能元件。为了推进我国动力电池产业的发展和进步,不断提高锂离子电池的寿命及安全可靠性,动力电池测试系统的研究显得尤为重要。本论文根据锂电池的特点,设计了一套动力电池单体测试系统,用于单体锂电池的电气性能、寿命循环、工况模拟等充放电测试。该系统采用两级分布式结构,通过CAN总线或RS232总线实现上、下位机之间的通信。一方面,上位机控制软件根据锂电池的测试过程编写测试程序,并根据测试程序控制下位机的电流的输出;上位机软件通过CAN总线与下位机进行通讯,读取采样数据;上位机软件通过SQLite数据库记录、分析下位机上传的数据、显示波形;上位机软件将分析结果反馈给下位机,使之按照测试程序正常运行。另一方面,该系统采用TMS320F28035作为下位机的为核心处理器,通过DSP的快速处理能力迅速调整恒流源输出电流,实现了对锂电池恒压、恒流充放电过程中电压、电流、功率等参数的实时监控;该系统通过高速的ADC模块实现了电池电压、电流、温度、功率、瓦时、安时等基本参数的数据采集,并通过CAN总线或RS232总线将采集的数据传递给上位机;该系统添加了电池过电压、欠电压、过温度、过电流等保护措施。最后通过实验验证,系统的各项技术指标的满足设计要求。
[Abstract]:In recent years, with the increasing attention on the problem of environmental pollution and energy crisis, the application of new energy has been paid more and more attention. The automobile production enterprises will be the development of new energy vehicles as an important strategy for the future of the automotive industry to seize the commanding heights. The Chinese government is the development of new energy vehicles as to solve the energy problem and environment the problem, major initiatives to realize the sustainable development of the road. As everyone knows, the power battery is the key components of new energy vehicles, improve the performance of battery plays a vital role in the development of new energy vehicles. In many power batteries, lithium ion battery has the advantages of high voltage, high capacity density, small volume and light weight. Long cycle life, no memory effect, low self discharge, is recognized as the ideal energy storage elements. In order to promote China's battery industry development and progress, not Improve the life and reliability of the lithium ion battery, power battery testing system is particularly important. This paper according to the characteristics of lithium battery, design a set of power battery monomer testing system for electrical performance of single lithium battery life cycle, condition simulation of charge and discharge test. The system adopts two distributed structure, through the CAN bus or RS232 bus to realize, communication between the lower position machine. On the one hand, the PC control software according to the testing process of lithium battery, write a test program, and according to the output current test program control machine; PC software through the CAN bus communication with the lower computer and read the sample data; PC by SQLite database records, analysis of PC to upload data, display the waveform; PC software will analyze the results back to the client, so that the normal operation in accordance with the test procedure. On the other hand, the system uses TMS320F28035 as the MCU as the core processor, the fast processing ability of DSP rapid adjustment of the constant current source output current to achieve a constant pressure on the lithium battery, constant current voltage, the process of charge and discharge current, real-time monitoring of power parameters; the system realizes the battery voltage, through the ADC module high current, temperature, power, Watts, basic parameters such as data acquisition and transmission will ah, the collected data to the host computer via CAN bus or RS232 bus; the system adds battery over-voltage, under voltage, over temperature, over-current protection measures. The experimental results meet the design requirements, the the technical index of the system.

【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U469.72

【参考文献】