From DC nano- and microgrids towards the universal DC distribution system - a plea to think further into the future
Laurens MacKay (TU Delft - Old - EWI-ESE-DC&S DC systems & Storage)
TG Hailu (TU Delft - Electrical Power Processing)
Gautham Ram Chandra Mouli (TU Delft - Old - EWI-ESE-DC&S DC systems & Storage)
Laura Ramirez Elizondo (TU Delft - Old - EWI-ESE-DC&S DC systems & Storage)
J. A. Ferreira (TU Delft - Electrical Power Processing)
Pavol Bauer (TU Delft - Old - EWI-ESE-DC&S DC systems & Storage)
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Abstract
The traditional ac power system is challenged by the increased amount of distributed energy resources. Enormous changes and investments are necessary in order to achieve an ac smart grid capable of coping with the challenges introduced. In dc, solutions seem to be more straightforward since most of the distributed energy sources and most of the loads connected to the low voltage grid operate with dc. For this reason, dc distribution systems should be considered as an alternative with significant potential. Nevertheless, nowadays research is mainly focused on local dc nano- and microgrids. This paper introduces relevant aspects related to dc distribution networks. A wide field of opportunities and challenges are briefly exposed.