本文探討基于燃料電池的UPS(FC-UPS)功率變換拓撲設計思路和綜合方法，獲得了多種燃料電池UPS 拓撲結構。針對其中一種結構，進一步分析了幾個典型的功率變換電路實現方法，并通過理論和實驗比較三種逆變拓撲的效率。探討了超級電容的接入方法，用理論和實驗，比較了不同的接入方法。
Abstract: This paper presents an approach to synthesizing the power electronics conversion topologies for the fuel cell UPS. Various topology structures are obtained. One structure is selected for further study. Since the inverter is critical to the utilization of the expensive fuel cell, the inverter efficiency is investigated with loss breakdown and the experiment. With regards to the energy management for fuel cell, ultra-capacitor is introduced. The connecting of the Ultra-capacitor to FC-UPS is studied and connecting approaches are compared.
關鍵詞：燃料電池，UPS，功率變換拓撲
Keywords：Fuel cell, UPS, Ultra-capacitor