具雙向潮流與可調功因之單相全橋式交流/直流轉換器

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。

關鍵字

交流/直流轉換器；能量回送；可調功因；廣義零向量技巧

並列摘要

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.

並列關鍵字

AC/DC converter ； energy regeneration ； adjustable power factor ； generalized zero vector

參考文獻

[29] 邱逸凡， “具可調功因之單相全橋式升降壓交流/直流轉換器”，國立虎尾科技大學電機工程研究所碩士論文，民國98年。

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國際替代計量

具雙向潮流與可調功因之單相全橋式交流/直流轉換器

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