本文關(guān)鍵詞：動力電池單體測試系統(tǒng)　出處：《青島理工大學》2016年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 鋰離子電池 單體 SQLite CAN總線 DSP

【摘要】：近年來,隨著人們對環(huán)境污染以及能源危機等問題的日益關(guān)注,新能源的應(yīng)用也日益受到人們的重視。各汽車生產(chǎn)企業(yè)也將發(fā)展新能源汽車作為搶占未來汽車行業(yè)制高點的重要戰(zhàn)略。我國政府更是把發(fā)展新能源汽車作為解決能源問題和環(huán)境問題、實現(xiàn)可持續(xù)發(fā)展道路的重大舉措。眾所周知,動力電池是新能源汽車的關(guān)鍵核心部件,動力電池性能的提高對新能源汽車的發(fā)展起著至關(guān)重要的作用。在眾多動力電池中,由于鋰離子電池具有電壓高,容量密度高,體積小、重量輕、循環(huán)壽命長、無記憶效應(yīng)、自放電低等優(yōu)點,被公認為理想的儲能元件。為了推進我國動力電池產(chǎn)業(yè)的發(fā)展和進步,不斷提高鋰離子電池的壽命及安全可靠性,動力電池測試系統(tǒng)的研究顯得尤為重要。本論文根據(jù)鋰電池的特點,設(shè)計了一套動力電池單體測試系統(tǒng),用于單體鋰電池的電氣性能、壽命循環(huán)、工況模擬等充放電測試。該系統(tǒng)采用兩級分布式結(jié)構(gòu),通過CAN總線或RS232總線實現(xiàn)上、下位機之間的通信。一方面,上位機控制軟件根據(jù)鋰電池的測試過程編寫測試程序,并根據(jù)測試程序控制下位機的電流的輸出;上位機軟件通過CAN總線與下位機進行通訊,讀取采樣數(shù)據(jù);上位機軟件通過SQLite數(shù)據(jù)庫記錄、分析下位機上傳的數(shù)據(jù)、顯示波形;上位機軟件將分析結(jié)果反饋給下位機,使之按照測試程序正常運行。另一方面,該系統(tǒng)采用TMS320F28035作為下位機的為核心處理器,通過DSP的快速處理能力迅速調(diào)整恒流源輸出電流,實現(xiàn)了對鋰電池恒壓、恒流充放電過程中電壓、電流、功率等參數(shù)的實時監(jiān)控;該系統(tǒng)通過高速的ADC模塊實現(xiàn)了電池電壓、電流、溫度、功率、瓦時、安時等基本參數(shù)的數(shù)據(jù)采集,并通過CAN總線或RS232總線將采集的數(shù)據(jù)傳遞給上位機;該系統(tǒng)添加了電池過電壓、欠電壓、過溫度、過電流等保護措施。最后通過實驗驗證,系統(tǒng)的各項技術(shù)指標的滿足設(shè)計要求。
[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.

【學位授予單位】：青島理工大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：U469.72

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相關(guān)期刊論文 前1條

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本文編號：1426170