本篇論文研製以數位控制實現三相功率因數修正器，架構為VIENNA整流器，以達成三相輸入電源且元件數少架構簡單之目的。本文採用雙組-升壓型功率因數修正的控制方法，以降低輸入電流諧波失真，使輸入電流與電壓同相位，達成高功率因數與提高轉換效率，並可使得兩個串接的輸出電容電壓自然的達到平衡。數位控制的核心採用德州儀器公司的TMS320F28035數位信號處理器，具有可程式化、彈性設計、高可靠度等優點。最後實作一台1 kW VIENNA整流器，其輸入交流相電壓為90 V至135 V，輸出電壓為510 V。

This thesis presents the design and implementation of a digitally-controlled VIENNA rectifier, which is a three-phase power factor corrector. The VIENNA rectifier is suitable for three-phase input source with a small number of components and simple structure. With dual-boost power factor correction (PFC) control method, the input current harmonic can be reduced to shape the input current into sinusoidal and in-phase with the input voltage. Therefore, high power factor and conversion efficiency can be achieved. Also, the voltages of two series-connected output capacitors can be automatically balanced. For the digital control chip, a TI digital signal processor TMS320F28035 is chosen for its flexible design and high reliability. Finally, a 1-kW VIENNA rectifier with three-phase input voltages of AC 90 V to 135 V and an output voltage of 510 V is implemented.

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