Safety considerations for the operation of bipolar DC-grids

DC microgrids can offer many advantages for an installation in commercial applications like data centers or in private homes. In this paper, future expansion of such grids towards a bipolar architecture (e.g. ±380 V DC ) is evaluated. The focus lies on various fault situations, their effects on the...

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Bibliographic Details
Main Authors: Kaiser, Julian, Gosses, Kilian, Ott, Leopold, Han, Yunchao, Wunder, Bernd, Marz, Martin, Schork, Franz, Buhler, Klaus, Bohm, Thomas
Format: Conference Proceeding
Language:English
Subjects:
bipolar dc-microgrids
Circuit faults
Conductors
Current measurement
ground faults
Spark gaps
Surge protection
surge protective device
Surges
temporary and transient overvoltages
Voltage measurement
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Summary:DC microgrids can offer many advantages for an installation in commercial applications like data centers or in private homes. In this paper, future expansion of such grids towards a bipolar architecture (e.g. ±380 V DC ) is evaluated. The focus lies on various fault situations, their effects on the grid and possible solutions to maintain grid safety. For this purpose, a laboratory scale bipolar test grid is set up and subjected to ground faults, loss of neutral and load shedding.
ISSN:0275-0473
DOI:10.1109/INTLEC.2017.8214157