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Droop controlled cognitive power electronics for DC microgrids

: Wunder, B.; Ott, L.; Kaiser, J.; Gosses, K.; Schulz, M.; Fersterra, F.; März, M.; Lavery, M.; Han, Y.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Power Electronics Society:
39th IEEE International Telecommunications Energy Conference, INTELEC 2017 : 22-26 October 2017, Gold Coast, Queensland, Australia
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5386-1019-0
ISBN: 978-1-5386-1018-3
ISBN: 978-1-5386-1020-6
International Telecommunications Energy Conference (INTELEC) <39, 2017, Gold Coast>
Conference Paper
Fraunhofer IISB ()

A dc-based low-voltage power supply offers many advantages over the historically grown ac voltage infrastructure. The paper shows the potentials for cost reduction, efficiency enhancement and equipment miniaturization through new cognitive power electronics, but also discusses the obstacles to a faster market penetration of dc microgrids. These include aspects of grid control, grid stability, security and safety. As a main challenge the arc phenomena in connectors will be discussed, which affects all mechanical connectors in a dc grid installation.