臺灣博碩士論文加值系統

本論文提出具雙向潮流與可調功因之單相全橋式交流/直流轉換器，該轉換器利用廣義零向量技巧，將一個單相全橋式升壓整流器與一直流升降壓轉換器整合成一單級交/直流轉換器，並具有能量回送、弦波輸入電流與可調功因之優點。進而使用Vissim模擬環境及TI DSP TMS320F28335單晶片來完成電路數位化之控制，可使該轉換器的電路體積縮小、同時達到其控制參數易修改等優點。在回授控制信號方面，則測量並取樣輸出電壓、轉換器中間電容電壓、輸入電壓與輸入電流等來做轉換器系統的數位控制，並使用推導出的調變函數直接實現整體系統的控制策略，可獲得系統快速之響應，同時在輸入側也能消除電流諧波及改善功率因數。另外，建立此轉換器之直流模式，以分別求出轉換器前級與後級之轉移函數；再建立小訊號模式，可得到整體系統之轉移函數。最後，以實際量測各種輸入電壓與電流之穩態響應及輸出電壓與電流之動態響應的結果，將可驗證本論文之正確性與實用性。

This thesis proposes a single-phase full-bridge AC/DC converter with bidirectional power flow and adjustable power factor. Based on a generalized zero vector technique, the proposed AC/DC converter combines a single-phase boost rectifier and a buck-boost converter into a single-stage AC/DC converter. The proposed converter has several advantages such as energy regeneration, sinusoidal waveform and adjustable power factor in the input. TI DSP TMS28335 chip and Vissim Embeded control software are both employed to achieve digital control requirement.The advantages of the converter include small size and easy adjustment for control parameters. Detecting output voltage, intermediate capacitance voltage, input voltage and current reaches relative control parameters. A derived modulation function is applied to control circuit, then the converter has faster response, and the advantages mentioned above. Furthermore, both DC and small signal mathematic models of the proposed converter are established to obtain the system transfer function. Finally, some experimental results, such as steady-state response and dynamic response are presented to verify the effectiveness of the proposed converter.

中文摘要...................................................i
英文摘要.................................................iii
誌 謝...................................................v
目 錄..................................................vi
表 目 錄................................................viii
圖 目 錄..................................................ix
第一章 緒論.............................................1
1.1 研究動機..........................................1
1.2 文獻概述..........................................3
1.3 論文貢獻..........................................6
1.4 論文大綱..........................................8
第二章 轉換器之操作原理與電路分析........................................................9
2.1 前言..............................................9
2.2 廣義零向量(Generalized Zero Vector, GZV...........9
2.3 轉換器之操作原理.................................13
2.4 轉換器之電路分析.................................16
第三章 轉換器之數學模式建立.......................................................23
3.1 前言.............................................23
3.2 轉換器之數學模型建立.......................................................24
第四章 單相全橋交直流轉換器之實際電路製作...............32
4.1 前言.............................................32
4.2 硬體實作之感測電路.......................................................34
4.2.1 市電電流訊號感測電路.....................35
4.2.2 電壓訊號感測電路.........................36
4.2.3 市電電壓相位可調電路.....................38
4.2.4 零電壓向量合成電路及緩衝保護電路.........39
4.2.5 光耦合隔離驅動電路.......................40
4.3 數位化之控制器設計...............................42
4.3.1 數位訊號處理器之介紹.....................42
4.3.2 所提轉換器之控制策略.....................44
第五章 轉換器電路實作印證...............................48
5.1 前言.............................................48
5.2 系統規格.........................................48
5.3 穩態響應測試.....................................49
5.4 動態響應測試.....................................55
5.5 能量回送至市電端測試.......................................................59
第六章 結論.............................................62
參考文獻.................................................64
Extended Abstract........................................68簡歷.....................................................71

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