研究生: |
曾柏榮 Po-Jung Tseng |
---|---|
論文名稱: |
高效率堆疊輸出電池充電器 A High-Efficiency Battery Charger with Cascode Output Design |
指導教授: |
羅有綱
Yu-Kang Lo 邱煌仁 Huang-Jen Chiu |
口試委員: |
陳建富
Jiann-Fuh Chen 梁從主 Tsung-Chu Liang 陳耀銘 Yaow-Ming Chen 劉益華 Yi-Hua Liu |
學位類別: |
博士 Doctor |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2014 |
畢業學年度: | 102 |
語文別: | 中文 |
論文頁數: | 113 |
中文關鍵詞: | 串聯諧振轉換器 、高效率電池充電器 、全橋相移轉換器 、堆疊輸出 、定電流 、定電壓 |
外文關鍵詞: | High-efficiency Battery Charger, Phase-shifted Full-bridge Converter, Series-resonant Converter, Cascode Output, Constant Current, Constant Voltage |
相關次數: | 點閱:1051 下載:11 |
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本論文呈現一台高效率堆疊輸出電壓充電器,主要是設計適用於不同電池陣列的充電器,因此充電器的輸出電壓範圍較為廣泛。充電器在經由堆疊輸出電壓的設計方式,提高在寬範圍輸出電壓時變壓器的利用率與效率表現。為了瞭解本論文提出電路的可行性與設計概念的優異性,文中首先將介紹與分析兩個傳統的架構將,第一個架構是單級式架構,所選用的電路架構為全橋相移轉換器。第二個架構是兩級式架構,所選用的架構分別為全橋串聯諧振轉換器與降壓型轉換器,與兩級式架構相比,由相關數據分析可以得知堆疊式架構可以改善效率的表現。堆疊式架構的輸出電壓結構是使用兩個電壓堆疊,一個是固定電壓,另一個是可變的電壓。針對電池充電的應用,定電壓與定電流充電電路也可以與堆疊式架構整合實現。本文最後實作出兩個3.3 kW的單級式架構與堆疊式架構,經由測試結果來驗證本論文提出的設計概念的可行性。
This dissertation presents a high-efficiency battery charger with cascode output design. The presented battery charger is designed for charging different battery banks, so the output voltage range is wider. By using cascode output voltage, the proposed scheme improves the transformer utilization and the efficiency performance under wide range output voltage. To show the feasibility and superiority of the proposed circuit, two conventional battery chargers are discussed and analyzed. Firstly, a single-stage topology is implemented by phase-shifted full-bridge converter. Secondly, a two-stage topology is implemented by full-bridge series-resonant converter and buck converter. The proposed cascode topology improves the efficiency performance compared with the two-stage topology. The output stage is a cascode structure comprising fixed voltage and variable voltage. The constant current and constant voltage charging schemes can be achieved by the proposed cascode configuration for battery charger applications. Two 3.3-kW laboratory prototypes of the single-stage scheme and the proposed topology are implemented and tested. The experimental results are shown to verify the feasibility of the proposed scheme.
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