Influence of the operating frequency on DC-DC converters for HVDC grids
Influence of the operating frequency
on DC-DC converters for HVDC grids
While several DC-DC converters for HVDC have been proposed in iterature, comparison studies are needed to identify the best circuit for a particular case of application. This paper proposes an analytical methodology that allows to assess rapidly the comparison of DC-DC converters. It was applied to evaluate two modular DC-DC structures, one isolated circuit and one non isolated circuit, focusing in the variation of the operating frequency for different DC voltage transformation ratios. The results show that the non-isolated structure presents better indicators compared to the isolated circuit for all the considered cases.
J. Paez, J. Maneiro, S. Bacha, D. Frey, and P. Dworakowski
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