透過您的圖書館登入
IP:3.146.35.203
  • 學位論文

利用8051微控制器實現之鋰離子電池快速充電器的研製

Design and Implementation of a Rapid Charger for Li-ion Batteries using 8051 Micro-controller

指導教授 : 歐勝源

摘要


本論文主要以8051微控制器研製鋰離子電池充電器,應用Motorola快速充電法,期望縮短電池充電時間及提高電池之充電效率,並延長電池之使用壽命。由於針對單體鋰電池之設計,充電器輸出電壓大約介於3.6V至4.2V之間,輸出電壓相當低,為了提高充電器轉換效率,採用同步整流技術,降低對效率影響極大的傳導損失。至於電池充電技術則是採用Motorola快速充電法,此充電法則主要以定電流進行充電一段預設時間後,休息一段不充電且不放電之時間,接著再進行短時間的放電以及第二次的休息。由於此種充電樣態較為繁雜,因此採用微控制器來實現。本論文最後以8051微控制器以及同步整流之降壓型轉換器完成所研製之充電器,實際對鋰電池進行充電,並記錄充電波形以及觀測其充電過程,顯示確實能達成快速充電效果,且電池溫升最高僅1.3oC左右,驗證所研製之充電架構與方式,能夠確保電池充電過程之安全。再者,使用本論文所實現充電器之充電效率可達97.33%。

並列摘要


This thesis focuses on a Li-ion battery charger for rapid charging. The charger is structured with a synchronous rectified buck converter and controlled by the 8051 micro-controller in which Motorola charging method is applied to short the charging time duration, boost the charging efficiency and enlarge the life time of used battery. Generally, the output voltage of charger for one Li-ion cell is from 3.6V to 4.2V, a quite low voltage, so that the synchronous rectified technique is utilized to improve the charger efficiency. The Motorola charging method is implemented with the used micro-controller to form the desired charging/discharging pattern in which a charging duration, a rest duration and a discharging duration are included. Experimental results derived from a rapid charger for Li-ion batteries show the good conforms to the rapid charging specifications. The increase in temperature is recorded as only up to 1.3oC to ensure the cell safety and the charging efficiency is calculated high to 97.33% in the implemented rapid charger.

參考文獻


[20] “Buck Converter Introduction” ,圓創科技股份有限公司,2003。
[9] Y. Podrazhansky and P. W. Popp, “Method and Apparatus for Charging, Thawing and Formatting a Battery,” U. S. Patent 5,307,000, Apr. 1994.
[18] 朱延松,「具能量回送與功因修正之正負脈衝電池充電器」,碩士學位論文,成功大學電機工程系,民國91年5月。
[19] 沈柏廷,「基於電流振幅調變技術之雙向脈衝鋰離子電池充電器」,碩士學位論文,大同大學電機工程系,民國97年5月。
[21] Daniel W. Hart” Introduction to Power Electronics”,王順忠繹,東華書局。

被引用紀錄


曾致暉(2012)。電池檢視與控制器之研究〔碩士論文,國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842/NCTU.2012.00344
鄧煒騰(2010)。建構於自行車發電機之電力管理系統及其應用〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0006-1908201017375800
羅一龍(2013)。整合型鋰電池與超級電容器能量管理系統之研製〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0006-1508201316274500

延伸閱讀