臺灣博碩士論文加值系統

本論文提出一SEPIC-Zeta雙向DC-DC轉換器，此轉換器採用耦合電感技術，可藉由耦合電感匝數比之調整，達成高電壓轉換比之功能。轉換器於放電模式及充電模式時皆具有漏感回收之機制，將漏感能量傳送至輸出端，且轉換器具有電壓箝位電路，可降低開關上之電壓應力，提高轉換器之效率。本論文中對轉換器之電路架構作一探討，分析各工作模式及穩態特性。本文首先針對所提出之轉換器電路，分析其動作原理與穩態特性，最後實作雛型電路，其電器規格低壓側與高壓側分別為24 V及400 V，輸出功率為500 W，以驗證本論文中所提轉換器之特性。

A bidirectional SEPIC-Zeta DC-DC converter with coupled inductor is proposed in this thesis. High voltage conversion is achieved and the leakage-inductor energy is recycled in both discharge mode and charge mode. Also，the switch voltage stress is reduced by the clamping circuit to achieve high efficiency in the proposed converter. The operating principles and steady-state analysis of the proposed converter are discussed in detail. Finally, a laboratory prototype circuit with low voltage side 24 V/ high voltage side 400 V and output power 500 W is implemented to verify the performance of the proposed converter.

目　　錄
摘　要 I
誌　謝 III
目　錄 IV
圖　目　錄 VII
表　目　錄 X
第一章　緒論 1
1.1研究背景與目的 1
1.2論文架構簡介 3
第二章　高轉換比雙向DC-DC轉換器簡介 4
2.1升/降壓式雙向DC-DC轉換器 5
2.2串級式雙向DC-DC轉換器 6
2.3耦合電感雙向DC-DC轉換器 7
2.4耦合電感疊接式雙向DC-DC轉換器 9
2.5討論與比較 10
第三章　SEPIC-Zeta雙向DC-DC轉換器 12
3.1主電路架構 12
3.2放電模式 14
3.2.1放電模式電路分析 14
3.2.2放電模式電壓轉換比 23
3.2.3放電模式邊界導通條件 24
3.3充電模式 27
3.3.1 充電模式電路分析 27
3.3.2 充電模式電壓轉換比 35
3.3.3 充電模式邊界導通條件 36
第四章　系統設計研製與硬體實驗結果分析與討論 39
4.1 系統架構與系統規格 39
4.2 電路元件參數設計 39
4.2.1 耦合電感參數設計 39
4.2.2 電容參數設計 40
4.2.3 開關元件選用 42
4.3 實驗結果 45
4.3.1 放電模式實驗結果 45
4.3.2 充電模式實驗結果 50
第五章　結論與未來研究方向 55
5.1結論 55
5.2未來研究方向 56
參考文獻 57

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