臺灣博碩士論文加值系統

本論文提出一新型單相交流/交流變頻轉換器，其電路架構是由一個電容器串接兩組單相全橋式電路與置於輸出入端之二個電感器組合而成。而此轉換器為單級控制，且輸入端具有可調功因與弦波輸入電流；輸出端具有可升降壓、可變頻率、弦波輸出電流及能量再生等優點。另外，應用狀態空間平均技巧及廣義零向量建立所提之新型轉換器開關驅動訊號的數學模型及其系統之轉移函數。並利用VisSim及TI開發之DSP TMX320F28335實現系統的數位化控制器，以完成輸入整流側之功因修正與輸出換流側之迴授電路控制。最後，提出部分實驗結果與本論文所提之理論相比較，以驗證其正確性。

In this thesis, a novel single-phase AC/AC converter is presented. The proposed converter, which consists of two full-bridge, two inductors and a capacitor, has several advantages such as adjustable power factor, sinusoidal input/output current, step up/down output voltage, adjustable frequency, single stage control, and energy regeneration etc.. Besides, the mathematical model of proposed converter is built using the state space averaging technique and generalized zero vector. In order to analyze dynamic characteristic of the circuit, the small signal model of the system is established to obtain transfer function. VisSim and DSP TMX320F28335 are employed to achieve digital control for power factor correct and feedback control. Finally, some experimental results are compared with the proposed theory for verification.

中文摘要...................i
英文摘要...................ii
誌謝...................iii
目錄...................iv
圖目錄...................vi
表目錄...................ix
第一章 緒論...................1
1.1、研究動機與目的...................1
1.2、先前研究...................2
1.3、功因修正之介紹...................7
1.4、換流器之介紹...................9
1.5、論文貢獻...................11
1.6、論文大綱...................12
第二章 新型轉換器之操作原理與電路分析...................13
2.1、前言 ...................13
2.2、新型轉換器之操作原理...................13
2.3、新型轉換器之電路分析...................20
第三章 新型轉換器之數學模型建立...................26
3.1、前言................... 26
3.2、新型轉換器之數學模型...................26
3.3、新型轉換器之小訊號模型................... 39
3.4、穩態下中間電容C之電壓...................46
第四章 硬體電路製作...................48
4.1、前言 ...................48
4.2、光耦合隔離驅動電路...................50
4.3、電流偵測電路...................52
4.4、市電電壓相位可調電路...................53
4.5、緩衝保護及廣義零向量合成電路...................54
4.6、數位化之控制器設計...................55
第五章 實測波形...................59
5.1、系統規格...................59
5.2、穩態響應波形...................60
5.3、動態響應波形...................66
第六章 結論與未來展望...................69
參考文獻...................72
簡歷...................82

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