發(fā)布時(shí)間：2018-01-04 23:31

  本文關(guān)鍵詞：高精度鋰電池電量監(jiān)測策略及采集電路的研究與設(shè)計(jì)　出處：《電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 鋰電池電量監(jiān)測策略 電池剩余運(yùn)行時(shí)間 鋰電池內(nèi)阻 采集電路

【摘要】：鋰離子電池由于具有高能量密度和綠色環(huán)保的優(yōu)點(diǎn),被廣泛的應(yīng)用于筆記本電腦和各種手持設(shè)備中,同時(shí)隨著人們環(huán)保意識的提升和能源危機(jī)的加重,鋰離子電池也擴(kuò)展到了電動汽車和航天航空等領(lǐng)域。鋰離子電池的發(fā)展也對其相應(yīng)的電量監(jiān)測計(jì)提出了日益苛刻的標(biāo)準(zhǔn),人們更希望移動設(shè)備也能像筆記本電腦一樣顯示剩余運(yùn)行時(shí)間。因此高精度的鋰電池電量監(jiān)測計(jì)策略及硬件電路的實(shí)現(xiàn)具有很高的應(yīng)用價(jià)值。本文首先簡述了課題研究的背景意義,介紹了當(dāng)前鋰離子電池電量監(jiān)測計(jì)的發(fā)展現(xiàn)狀,并對不同鋰電池電量監(jiān)測策略的優(yōu)缺點(diǎn)對比,之后簡述了鋰離子電池的工作原理,并對影響鋰離子電池內(nèi)阻的因素做了重點(diǎn)討論分析。然后在傳統(tǒng)的鋰離子電池電量監(jiān)測技術(shù)的基礎(chǔ)之上,有機(jī)結(jié)合開路電壓法和庫侖計(jì)法,得到了精確計(jì)算電池剩余運(yùn)行時(shí)間的算法策略,該高精度算法策略能夠同時(shí)實(shí)時(shí)更新內(nèi)阻、初始容量和放電曲線的數(shù)據(jù)庫。該自適應(yīng)算法能夠通過動態(tài)建模的方式有效地補(bǔ)償了鋰離子電池自放電率、溫度和老化程度等因素造成的剩余運(yùn)行時(shí)間計(jì)算誤差。本論文在完成了高精度鋰離子電池電量監(jiān)測策略的研究之后,重點(diǎn)研究了鋰離子電池溫度和電壓采集電路的設(shè)計(jì)與仿真。本人研究設(shè)計(jì)的模塊主要是斬波運(yùn)算放大器、開關(guān)電容帶隙基準(zhǔn)電路和輔助電路,并利用HSPICE仿真軟件和SMIC0.13um工藝庫驗(yàn)證了理論設(shè)計(jì)的可行性和正確性。與普通的鋰電池電量監(jiān)測計(jì)相比,此監(jiān)測策略可精確監(jiān)測電池老化、溫度和循環(huán)次數(shù)等造成的阻抗變化,有效且精確地計(jì)算出電池剩余運(yùn)行時(shí)間,從而延長手持設(shè)備、電動工具和醫(yī)療設(shè)備等應(yīng)用的鋰電池運(yùn)行時(shí)間。此外,本論文設(shè)計(jì)的高性能溫度和電壓采集電路高準(zhǔn)確性和高靈敏度的優(yōu)點(diǎn),可更廣泛地應(yīng)用于電池管理系統(tǒng)。
[Abstract]:Due to the advantages of lithium ion battery with high energy density and green environmental protection, has been widely used in notebook computer and handheld devices, and with the increase of people's awareness of environmental protection and improve the energy crisis, the lithium ion battery is also extended to the electric automobile and aerospace fields. Power monitoring the development of lithium ion battery for the plan put forward more strict standards, people hope that mobile devices can also like the notebook computer display remaining time. It has very high application value for lithium battery monitoring so high precision meter strategy and hardware circuit. This paper first introduces the background and significance of the research, introduces the current development status lithium ion battery monitor, and compared the advantages and disadvantages of different lithium battery monitoring strategy, then the working principle of lithium ion battery, and the Factors affecting the internal resistance of the lithium ion battery was discussed. Then based on the analysis of lithium ion battery monitoring technology of the traditional combination of open circuit voltage method and the coulometric method, the accurate calculation of the battery remaining running time of the algorithm, the high precision of calculation strategy can also update the initial capacity and internal resistance the discharge curve database. The adaptive algorithm can through the dynamic modeling method can effectively compensate the lithium ion battery self discharge rate, remaining time caused by temperature and aging degree of calculation error. Based on the research of high precision lithium ion battery monitoring strategy is completed, focusing on the design and Simulation of lithium ion battery voltage and temperature acquisition circuit. I study the design of the module is the main operational amplifier, switch capacitor bandgap reference circuit and auxiliary electric The road, and the use of HSPICE simulation software and SMIC0.13um database technology to verify the theoretical correctness and feasibility of the design. Compared with the ordinary lithium battery monitoring, the monitoring strategy can accurately monitor the battery aging, the impedance change caused by temperature and cycle times, effectively and accurately calculate the remaining battery run time, thus extending the hand the running time of equipment, lithium battery electric tools and medical equipment applications. In addition, the design of high performance temperature and voltage acquisition circuit has the advantages of high accuracy and high sensitivity, can be widely used in battery management system.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM912

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本文編號：1380615