研究生: |
鄭漢義 Han-Yi Cheng |
---|---|
論文名稱: |
具定電流輸出之全橋相移轉換器研製 Study on a Phase-Shifted Full-Bridge Converter with Constant-Current Output |
指導教授: |
林景源
Jing-Yuan Lin |
口試委員: |
陳耀銘
Yaow-Ming Chen 邱煌仁 Huang-Jen Chiu 謝耀慶 Yao-Ching Hsieh 林景源 Jing-Yuan Lin |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 72 |
中文關鍵詞: | 全橋相移轉換器 、零電壓切換 、電流模式控制 |
外文關鍵詞: | Phase-Shifted Full-Bridge Power Converter, Zero-Voltage Switching, Current Mode Control |
相關次數: | 點閱:291 下載:2 |
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本論文目的在於研製大電流輸出之全橋相移轉換器。在控制系統設計具定電壓及恆流模式的電路,最後使用控制IC UCC28950做為脈波寬度調變控制器,利用相移訊號調變工作週期,使轉換器的功率開關達到零電壓導通的特性,減少開關上的切換損失,進而提高轉換器的整體效率。最後為了考量在大電流負載下,解決電路元件的選用困難及散熱問題,實作出一台輸入直流電壓為24 V、輸出直流電壓為0-10 V、滿載電流為60 A、輸出功率為600 W之轉換器,以此單模組並聯多組,達到最大輸出電流為300 A、最大輸出功率為3 kW之轉換器。並藉由實驗測試結果,在滿載時效率可達到89.74%。
The objective of this thesis is to design and implement the full-bridge phase-shift converter for high current output. The control strategy is designed to be capable of constant voltage (CV) mode and constant current (CC) mode. Finally, IC UCC28950 as pulse-shift modulation controller, using phase shift modulation signal to control duty cycle, the zero-voltage switching (ZVS) features can effectively reduce the switching losses and raise conversion efficiency. Finally, in order to consider the high current load, to solve the difficulty of selecting suitable components and the heat dissipation problems, a design example of 600 W power converter with 24 V input voltage and 0-10 V output voltage and full load current 60 A is implemented and tested. Using a single group in parallel into multiple groups, to achieve the maximum output current of 300 A, the maximum power of 3 kW converter. Experimental results show that the maximum efficiency is 82.4%.
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