本論文旨在實現數位單週期控制實現三相功率因數修正之交-直流轉換器。相較於傳統的控制方法需要輸入電壓、電流以及輸出電壓達成功因校正以及穩壓輸出，使用單週期控制的方法就能夠減去輸入電壓的感測器及其回授，因此本研究選擇六開關升壓轉換器架構，分析其在各個電壓情況下的電路行為，設計出單週期控制的方法，並以PSIM軟體模擬類DSP環境下的數位控制。同時，加入可能遭遇的非理想因素再進行模擬，檢測其對於功率因數校正影響之情況。
在實作電路過程中，由於開關閘極驅動訊號的雜訊影響，導致開關誤動作及燒毀，因此本論文亦分析開關的閘極訊號以及振鈴的形成原因並進行改善。本電路規格是以輸入30Vac轉換至直流100Vdc，量測從輕載至重載的輸入電流波形以及輸出電壓的波動，分析數據並探討波形失真的原因。

The objective of this thesis is to implement digital one-cycle control in three-phase power factor correction for the AC-DC converters. The traditional control methods for power factor correction require feedback of input voltage, current, and output voltage for stable output voltage regulation. Comparatively speaking, the use of one-cycle control waives the need for input voltage sensors and feedback of output voltage. In this thesis, a six-switch boost converter architecture was chosen to implement the one-cycle control, which was designed and validated using PSIM software in a DSP controlled environment. Additionally, non-ideal factors that may affect power factor correction were added to the simulation to test their impacts on the circuit.
This thesis also examined the cause of mis-operation resulting from the switch's gate signal during the circuit verification. The circuit converted 30Vac input into a 100Vdc output from light load to heavy load. Data analysis was conducted to identify reasons for waveform distortion.

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