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Functional Features of Isolated AC/DC Converter Interface in Future Low-Voltage DC Microgrids
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| Author(s) |
Vladan LAZAREVIC, Markus ABPLANALP, Francisco CANALES, Mario SCHWEIZER, Antonello ANTONIAZZI, Luca GHEZZI |
| Abstract |
In order to decouple dynamics of low-voltageDC microgrids and the AC utility grid and applyspecific grounding configurations, it is required that theAC/DC converter interface features transformer galvanicisolation. This paper proposes a simple, bidirectional,two-stage converter topology with an active front-endAC/DC stage followed by an isolated, resonant DC/DCconverter, operated as a DC transformer. The isolatedAC/DC interface features droop control implemented usinga minimized set of measurements and feedback loops.Theoretical considerations are backed up with simulationresults for different power levels, justifying the feasibilityof the proposed converter topology and the droop controlstrategy for the given purpose. |
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| Filename: | 0500-epe2023-full-23075382.pdf |
| Filesize: | 1.143 MB |
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| Type |
Members Only |
| Date |
Last modified 2023-09-24 by System |
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