臺灣博碩士論文加值系統

本文實際和設計研製一數位控制非隔離雙向直流-直流轉換器，所
提出的轉換器在所有方向均可以操作在降壓模式或是升壓模式，透過新
型調變策略和適當的設計降升壓電感感值以達到主開關零電壓切換操
作，以提高效率。為了進一步提升效率，提出了自適應相移的控制方法，
根據負載的大小決定閘極訊號之間的相移角度。本文使用一個低成本的
數位訊號控制器dsPIC33FJ16GS502 來實現電力潮流控制、調節直流匯
流排電壓和自適應相移控制，此調變策略是基於軟體的解決方式，不需
要額外附加電路，因此易於實現並且降低不穩定性和雜訊敏感度的問題。
為了驗證所提出方法的正確性與有效性，實作了一台300 W 原型電路。
根據實驗測試結果，在不同負載下所有操作模式的測量效率均在90 %
以上。

In this thesis, a digitally-controlled non-isolated bidirectional buck–
boost dc–dc converter is studied and implemented. The proposed converter
is capable of operating in all power conditions in buck/boost modes.
Through a novel modulation strategy and proper design of the buck-boost
inductance, zero voltage switching (ZVS) can be achieved and thus high
efficiency can be obtained. To further improve the efficiency, an adaptive
phase-shift control method which determines the phase shift between gating
signals according to the load level is also proposced. A low cost digital
signal controller dsPIC33FJ16GS502 is adopted in this thesis to realize the
power flow control, DC-bus voltage regulation and adaptive phase shift
control. As the modulation strategy is a software-based solution, there are
no requirement of additional circuits; therefore, it can be easily
implemented and reduces instability and noise susceptibility problems. To
validate the correctness and the effectiveness of the proposed method, a 300
W prototyping circuit is implemented and tested. According to the
experimental results, the measured efficiencies of all operating modes under
different loads are all higher than 90%.

摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VII
表目錄 XIII
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 3
1.3 文獻探討 4
1.4 論文大綱 7
第二章 動作原理與元件設計 8
2.1 系統架構介紹 8
2.2 雙向升降壓直流-直流轉換器等效模型分析 8
2.2.1充電模式等效模型 9
2.2.2放電模式等效模型 13
2.3 雙向升降壓直流-直流轉換器動作分析 18
2.3.1充電模式動作分析 18
2.3.2放電模式動作分析 26
2.4 相移機制 34
2.4.1相移原理與分析 34
2.4.2相移角度與電感值設計 37
2.5 元件設計 39
2.5.1電感設計 39
2.5.2匯流排端及電池端電容之設計 40
2.5.3零電壓切換條件 40
2.5.4相移角度設計 40
第三章 韌體系統介紹與設計 45
3.1 dsPIC33FJ16GS502簡介 46
3.2 程式設計流程介紹 48
3.3 數位濾波器 51
3.3.1濾波器簡介 51
3.3.2無限與有限脈衝響應濾波器 54
3.3.3有限脈衝響應濾波器設計 55
3.3.4數位濾波器驗證 58
3.4 數位PID控制器 59
3.4.1PID控制原理 59
3.4.2數位PID控制器設計 60
第四章 模擬與實驗結果及討論 63
4.1 模擬軟體介紹 63
4.1.1充電模式模擬 63
4.1.2放電模式模擬 65
4.2 實驗數據與波形圖 68
4.2.1降壓型充電模式實測波形圖 68
4.2.2升壓型充電模式實測波形圖 80
4.2.3降壓型放電模式實測波形圖 91
4.2.4升壓型放電模式實測波形圖 102
第五章 結論與未來展望 114
5.1 結論 114
5.2 未來展望 115
參考文獻 116

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