臺灣博碩士論文加值系統

本論文提出了一種應用於充電平衡電路的多繞組降壓型轉換器。在穩定地對電池串進行充電時，該轉換器通過多繞組變壓器的漣波電流，根據各顆電池的電壓值額外提供不同的充電電流，以達到平衡效果，從而解決電池電壓不平衡的問題。與一般的被動式和平衡方法相比，本論文所提方法的優點在於，每增加一顆電池只需增加一個繞組和一個二極體，而其他平衡方式則需增加許多元件，並且控制策略更加複雜。本文以較簡單的方式和較少的元件實現電池電壓平衡。
在控制方面，傳統切換式電源使用類比控制進行閉迴路控制，而本文基於微控制器實現全數位閉迴路控制。通過程式設計方式降低了類比電路設計和調適的要求，並且軟體更新和擴展更加容易，具有更高的靈活性。在電池殘電量估測部分，本文使用查表法和庫倫積分法，並通過微控制器進行電池數據處理。

This paper proposes a multi-winding buck converter applied to a charge balancing circuit. While charging a battery string steadily, the converter provides different charging currents according to the voltage value of each battery through the ripple current of the multi-winding transformer, thereby achieving a balancing effect and addressing the issue of battery voltage imbalance. Compared with general passive and active balancing methods, the advantage of the proposed method in this paper is that for each additional battery, only one winding and one diode are needed, while other balancing methods require many more components and more complex control strategies. This paper achieves battery voltage balancing in a simpler way and with fewer components.
In terms of control, traditional switching power supplies use analog control for closed-loop control, whereas this paper implements full digital closed-loop control based on a microcontroller. This reduces the requirements for analog circuit design and tuning through programming and makes software updates and expansion easier, providing greater flexibility. In the estimation of battery residual capacity, this paper uses the look-up table method and Coulomb counting method and processes the battery data through a microcontroller.

摘要...........................................i
Abstract......................................ii
誌謝...........................................iii
目錄...........................................iv
表目錄.........................................v
圖目錄.........................................vi
第一章 緒論...................................1
1.1、 研究背景與動機..........................1
1.2、 研究方法............................... 1
1.3、 論文架構 ...............................2
第二章 電池及平衡電路相關介紹...................3
2.1、 鋰電池介紹..............................3
2.2、 電池殘電量..............................4
2.3、 電池平衡介紹............................6
第三章 電池充電平衡電路架構設計.................9
3.1、 電路系統架構............................9
3.2、 降壓式轉換器...........................10
3.3、 多繞組變壓器...........................10
3.4、 檢測電路...............................11
3.5、 韌體控制設計...........................15
第四章 研究內容與方法.........................21
4.1、 充電平衡電路架構.......................21
4.3、 電池特性..............................24
4.4、 電池測試實驗設備 ......................25
4.5、 電池實驗流程...........................27
4.6、 移動平均法(Moving Average).............33
第五章 實驗..................................34
5.1、 平衡電路規格...........................34
5.2、 電平衡電路波型驗證.....................35
5.3、 結論..................................40
5.4、 未來展望 .............................40
References...................................41

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