Melika Hinaje

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Employing fuel cell (FC) as main source requires increasing and regulating its output voltage. In this paper, nonisolated dc–dc converter with high voltage ratio is proposed to interface between the FC and high-voltage dc bus. To take into account the low-voltage–high-density characteristics of power sources, a cascaded structure composed of two(More)
This paper studies the impact of fuel cell (FC) performance and control strategies on the benefits of hybridization. One of the main weak points of the fuel cell is slow dynamics dominated by temperature and fuel delivery system (pumps, valves, and in some cases, a hydrogen reformer). As a result, fast load demand will cause a high voltage drop in a short(More)
Fuel-cell vehicles (FCVs) with energy storage (ES) device(s) could result in improved lifetime, performance, fuel economy, and reduced cost. This paper presents the utilization of an ES device consisting of a supercapacitor bank for future electric vehicles with a hydrogen fuel cell (FC) as the main power source. The study mainly focuses on the innovative(More)
Many reasons may cause malfunction of a proton exchange membrane fuel cell stack. Moreover, a single defect cell can affect the whole stack functioning, therefore the localization of this cell is crucial as well as identifying the root causes for such malfunctioning. The diagnosis tool has to be non intrusive and to be easy to replicate to a new fuel cell(More)
Proton Exchange Membrane Fuel Cells (PEMFC) and Superconducting Coils (SC) are electrical devices which give us a large number of possibilities in the applied research domains. We know that PEMFCs are used as alternative power supplies that convert hydrogen and oxygen redox reaction into electrical energy. This is a clean power source that produces only(More)
Fuel cells are electrochemical energy converters which allow transformation of the chemical energy of a fuel to electricity through oxido-reduction reaction. The voltage of an elementary cell is usually near 1 V in open circuit and around 0.6 V in nominal conditions of power generation. Fuel cells are then by essence low voltage sources , so that for most(More)
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