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Due to the long cold start time and slow dynamics of proton exchange membrane (PEM) fuel cell (FC) stack, operating modes transfer control strategy for fuel cell uninterruptible power supply (FC-UPS) is different from the traditional uninterruptible power supply (UPS) system. In this paper, a seamless transfer control strategy, which is suitable for FC-UPS, is proposed. The power conversion architecture...
This paper studies construction and control of the proton exchange membrane fuel cell (PEMFC) power system. A high efficiency topology without electrolytic capacitor is proposed for both grid-connected mode and stand-alone mode. A voltage balance control strategy for front-end DC/DC converter is presented. A Power management unit (PMU) is introduced to provide the transient power on step load and...
Since the fuel cell (FC) is expensive now, it is worth to optimize the performance of power conversion system (PCS) for raising utilization of fuel cell. This paper presents an approach to investigate the power conversion topology for fuel cell power generation system. Firstly, through analyzing the demands of fuel cell power conversion system, the PCS structures are synthesized and an optimal PCS...
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