منصة البحوث الأكاديمية العراقية

microgrids have recently attracted research interest. A DC microgrid is composed of different dispatchable and non-dispatchable power generators and energy buffers, such as fuel cells and ultracapacitors, which are employed to provide the steady-state and transient power demanded by the load. To interface these generation resources to a common DC bus-bar, different configurations of power electronic converters have been proposed in the literature. For the fuel cell, a unidirectional DC–DC converter is utilised, for the ultracapacitor, however, a bidirectional DC–DC converter is needed to maintain the state-of-the-charge of the ultracapacitor. The overall efficiency of the microgrid will depend on the efficiency of these converters. High efficiency and low cost converters are very important to obtain a cost-effective solution. In addition, the power electronics converters must be chosen in respect to the

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