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The overall mass, size and cost of a propulsion system (which comprises the fuel cell stack and hydrogen tank, dc/dc converters, and energy storage devices) implemented in a fuel cell based vehicle, not only depends on the implemented propulsion system topology and control strategy, but also on the driving profile and the fuel cell operating features. This paper analyzes the impact of both the driving...
Distributed Maximum Power Point Tracking (DMPPT) architectures are one of the most promising solutions to overcome the drawbacks associated to mismatching phenomena in photovoltaic (PV) applications. In these PV architectures, there is a DC-DC converter dedicated to perform the Maximum Power Point Tracking (MPPT) for each PV panel. In order to have the greatest flexibility, the converter needs to...
The propulsion system implemented in a fuel cell based vehicle strongly affects the mass, cost and volume of the overall system. The design of a propulsion system architecture, which comprises different power converters and secondary energy storage systems, is closely related to the driving profile applied, since the power and energy requirements depend on the driving profile. This paper tackles the...
This paper analyzes two different architectures for a hybrid power source comprising a PEM (polymer electrolyte membrane) fuel cell and a Li ion battery. The hybrid power source feeds the propulsion motor of an all electrical aircraft, the Boeing Fuel Cell Demonstrator. The architectures are an unregulated and a regulated hybrid power source. The regulation is achieved by means of a controllable series...
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