研究生: |
林哲綱 Che-Kang Lin |
---|---|
論文名稱: |
以模型預測控制為基礎之鋰離子電池充電演算法 A Charging Algorithm for Lithium-ion Batteries Based on Model Predictive Control |
指導教授: |
劉益華
Yi-Hua Liu |
口試委員: |
楊宗銘
Chung-Ming Young 鄧人豪 Jen-Hao Teng 王順忠 Shun-Chung Wang |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 55 |
中文關鍵詞: | 模型預測控制 、鋰離子電池 、電池溫升 、定電流定電壓充電法 |
外文關鍵詞: | Model Predictive Control, Li-ion Battery, Battery Temperature Rise, Constant Current-Constant Voltage Charging |
相關次數: | 點閱:418 下載:0 |
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鋰離子電池已被大量使用在電能儲存的方案上,例如:3C電子產品、航空、電動車以及再生能源之儲能裝置。由於充電方法會影響鋰離子電池的效能及壽命,因此設計出高品質的充電器是必須的,一個高品質的充電器需要具備充電效率高,充電時間短且能延長電池循環壽命。
本文提出一種基於模型預測控制之電池充電演算法,此法主要目標為縮短充電時間同時降低電池在充電過程中的溫升,本文利用隨時更新之電池一階電阻電容電路模型來計算下一步之充電電流,並透過限制條件來改善鋰離子電池充電時的溫升。與傳統定電流定電壓充電法(Constant Current-Constant Voltage Charging,CC-CV)相比,本文充電法之充電時間比1.05C CC-CV改善0.13%,平均溫升改善5.2%,最高溫升改善22.3%,充電效率改善0.03%。
Lithium-ion (Li-ion) batteries play an important role in energy storage solutions for applications such as 3C electronics, aerospace, electric vehicles and renewable energy systems. For Li-ion batteries, designing a high-quality battery charger is essential since charging method has significant influences on the performance and lifetime of Li-ion batteries. The objectives of a high-quality charger include higher charging efficiency, shorter charging time and prolonged cycle life.
In this thesis, a model predictive control based charging algorithm which simultaneously factoring in the charging time and the temperature rise during charging is proposed. In this study, the first-order RC (resistor-capacitor) model of lithium-ion battery is utilized to calculate the required charging current, and the temperature rise is taken into account by adding an inequality equation constraint. Comparing with 1.05C CC-CV method, the charging time, the average temperature,maximum temperature rise and the charging efficiency rise can be improved by 0.13% , 5.2 % , 22.3% and 0.03% , respectively.
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