本論文採用數位控制方式研製一台600 W三相三開關功率因數修正器，其目的是要將三相輸入交流電源進行高效能轉換為一穩定的輸出直流電源，且降低電流諧波失真。本論文以德州儀器的TMS320F28035為主要核心控制，利用雙組升壓(Dual-Boost)控制法的雙迴路達到修正輸入電流波形、降低諧波失真與穩定輸出電壓的目標。本論文先對整個電路進行分析與模擬，最後實現一台600 W三相三開關功率因數修正器，以驗證模擬與理論的可行性與正確性。

This thesis presents a 600-W three-phase three-switch power factor corrector by digital control. The purpose is to convert the three-phase input voltage to a regulated DC output voltage with high efficiency and reduced current harmonic distortion. The TI TMS320F28035 chip is applied as the control unit. The double loops of the dual-boost control method are adopted to reshape the input current into sinusoidal, reduce the harmonic distortion and regulate the output voltage. This thesis provides analysis and simulations of the presented circuit. Finally, a 600-W three-phase three-switch power factor corrector was built and tested to verify the feasibility and validity of the theoretical analysis.

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