本文選題：電池管理系統(tǒng)(BMS) + 容量評估��； 參考：《西南科技大學(xué)》2015年碩士論文

【摘要】：隨著手機(jī)、筆記本電腦、數(shù)碼相機(jī)、MP4等消費(fèi)便攜式電子產(chǎn)品在生活中的廣泛應(yīng)用,市場對于鋰離子電池的巨大需求也引導(dǎo)電池行業(yè)的繼續(xù)走強(qiáng),但是在鋰離子電池使用中,電池存在過充、過熱、過放、過流等現(xiàn)象,這將導(dǎo)致其壽命縮短,甚至出現(xiàn)燃燒、爆炸等安全問題,因此電池管理系統(tǒng)(Bsttery Management System:BMS)的研究成為了解決問題的關(guān)鍵,對提高鋰離子電池的壽命和保證鋰離子電池的安全有著極為重要的意義。本文首先介紹了鋰離子電池的工作特性,并對鋰離子電池類型進(jìn)行了選擇。然后對鋰離子電池管理的功能進(jìn)行了研究,針對本系統(tǒng)的均衡策略,容量評估,系統(tǒng)保護(hù)及通信管理方面制訂了詳細(xì)的解決方案。另外,分別對系統(tǒng)的電源電路,采集電路,充放電控制電路,主動均衡電路,通信和時鐘等電路進(jìn)行了說明。接著對系統(tǒng)的軟件進(jìn)行了詳細(xì)的分塊設(shè)計說明,本課題采用主動均衡方式實(shí)現(xiàn)電池組的均衡管理,結(jié)合開路電壓法與安時積分法的優(yōu)點(diǎn)實(shí)現(xiàn)對電池容量評估,并采用RS232串口通信實(shí)現(xiàn)數(shù)據(jù)的傳送和參數(shù)的修改。最后,針對電池管理系統(tǒng)的常見問題,進(jìn)行了一系列的測試,保證鋰離子電池管理系統(tǒng)安全可靠的運(yùn)行,達(dá)到了預(yù)期的設(shè)計目的。
[Abstract]:With the widespread application of portable electronic products such as mobile phones, laptops, digital cameras and MP4 in daily life, the huge market demand for lithium ion batteries has also led to the continued strength of the battery industry, but in the use of lithium ion batteries, There are overcharge, overheating, overdischarge, overcurrent and so on, which will shorten its life, even lead to safety problems such as burning and explosion, so the research of battery management system: Bsttery Management system: BMShas become the key to solve the problem. It is of great significance to improve the life of lithium-ion battery and ensure the safety of lithium-ion battery. In this paper, the working characteristics of lithium ion battery are introduced, and the type of lithium ion battery is selected. Then, the function of lithium ion battery management is studied, and a detailed solution is made for the balance strategy, capacity evaluation, system protection and communication management of the system. In addition, the power supply circuit, acquisition circuit, charge and discharge control circuit, active equalization circuit, communication circuit and clock circuit of the system are explained respectively. Then the software of the system is designed and explained in detail. In this paper, the active equalization method is used to realize the equalization management of the battery pack, and the capacity of the battery is evaluated by combining the advantages of the open-circuit voltage method and the Ampere-hour integration method. RS232 serial communication is used to transmit data and modify parameters. Finally, aiming at the common problems of the battery management system, a series of tests are carried out to ensure the safe and reliable operation of the lithium ion battery management system.
【學(xué)位授予單位】：西南科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM912

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本文編號：2027974