This paper considers the possibility to connect two medium voltage primary distribution grids through a DC connection realized by two AD/DC converters in back-to-back configuration. In particular, after a description of the whole system, the effects of a bolted or non-bolted DC fault are analyzed. Then, an active current limiter is proposed to limit the fault currents and keep the controllability of the system. Such a system is then modeled and studied through many simulations that confirm the effectiveness of the proposed current limiter.

Protection devices against DC fault in a back-to-back converter applied to distribution grids

BRENNA, MORRIS;ZANINELLI, DARIO;
2015-01-01

Abstract

This paper considers the possibility to connect two medium voltage primary distribution grids through a DC connection realized by two AD/DC converters in back-to-back configuration. In particular, after a description of the whole system, the effects of a bolted or non-bolted DC fault are analyzed. Then, an active current limiter is proposed to limit the fault currents and keep the controllability of the system. Such a system is then modeled and studied through many simulations that confirm the effectiveness of the proposed current limiter.
2015
5th International Conference on Clean Electrical Power: Renewable Energy Resources Impact, ICCEP 2015
9781479987047
9781479987047
back-to-back converters; DC connection; DC fault protection; MV meshed grid; Energy Engineering and Power Technology; Renewable Energy, Sustainability and the Environment; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/983600
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