| 研究生: |
馮任強 Feng, Jen-Chiang |
|---|---|
| 論文名稱: |
電池組重新配置用以改善放電量的研究 Study on Improving Discharge Capacity of a Battery Pack via Reconfiguration |
| 指導教授: |
李建興
Lee, Chien-Hsing |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 系統及船舶機電工程學系 Department of Systems and Naval Mechatronic Engineering |
| 論文出版年: | 2021 |
| 畢業學年度: | 109 |
| 語文別: | 中文 |
| 論文頁數: | 79 |
| 中文關鍵詞: | 鋰離子電池 、電池組 、電池放電 |
| 外文關鍵詞: | Lithium-ion battery, battery pack, battery discharging |
| 相關次數: | 點閱:143 下載:1 |
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本論文對電池組放電量進行分析,由文獻得知,除間歇性放電法能提升電池組放電量外,放電時的工作週期與速率也會對放電量造成影響。因此,本研究擬使用由六顆電池所組成的電池組進行不同放電配置的放電實驗,其包含六顆並聯、五顆並聯一顆休息、四顆並聯兩顆休息、三顆並聯三顆休息與兩顆並聯四顆休息等五種放電方式。除此之外,並比較了三種休息時間(1秒、10秒、100秒)對放電量的影響,再探討三種負載下(1.52 A、3.04 A、4.56 A),上述放電方式的效果,最後加入靜態任務調度概念來結合兩種較佳的放電配置。本論文也對上述放電配置方式應用於電池組的擴充進行了分析,在串聯方面,加入一組串聯電池以使電池組擴充至六並聯二串聯的十二顆電池組,並進行放電實驗;在並聯方面,完成單顆電池放電量與放電電流與工作週期的擬合曲線,用於增加並聯顆數時,搭配電池組內部在不同放電配置下的放電工作週期與放電速率,最後藉由擬合公式來分析不同放電配置下對電池組放電量的影響。
In this thesis, the discharge capacity of battery packs is studied. After reviewing literatures, the results of references show that the intermittent discharge method can improve the discharge capacity of batteries. Both duty cycle and discharge rate during discharge are also affecting the discharge capacity of batteries significantly. Four configurations of battery packs are carried out in this study, which include five parallel and one rest, four parallel and two rest, three parallel and three rest, two parallel and four rest. In addition, the effect of the rest time consisting of one second, ten seconds, and one hundred seconds on the discharge capacity of a battery pack are compared. Next, the discharge characteristics of a battery pack under different loads in the discharge currents of 1.52 A, 3.04 A and 4.56 A are considered. A concept of static task-scheduling is added via combining two better kinds of discharge configuration. Furthermore, this thesis analyzes the application of the discharge configuration method to the expansion of battery packs. For a series connection of a battery pack, two of 6-cell battery packs are connected in series to expand the battery pack to six parallel and two series for discharge experiments. For a parallel connection, the relation between the discharge capacity and the discharge current of a single-cell battery is studied and its relationship is obtained by fitting the data in order to calculate the discharge duty cycle and discharge rate of the internal batteries of the module under different discharge configurations. Finally, the effect of discharge configurations on the discharge capacity of a battery pack is analyzed by using the fitting formula.
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