Protection Framework for Low Voltage DC Grids

Conference paper (2021)

Authors

N.H. van der Blij DC systems, Energy conversion & Storage -

P. Purgat DC systems, Energy conversion & Storage -

Thiago B. Soeiro DC systems, Energy conversion & Storage -

L.M. Ramirez Elizondo DC systems, Energy conversion & Storage -

M.T.J. Spaan Algorithmics -

P. Bauer DC systems, Energy conversion & Storage -

Research Group

DC systems, Energy conversion & Storage () (TU Delft)

Protection Low Voltage Circuit Breakers DC Grids Solid-State

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http://resolver.tudelft.nl/uuid:58ad516f-62d3-472d-9dd4-e9aae130e469

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Published Date

2021

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

This paper presents a protection framework for low voltage dc grids, which segments these grids into zones and tiers according to their fault current potential and provided protection. Furthermore, the technology and applications of different protection devices are examined. It is demonstrated that the utilization of fast fault interruption and fault limiting inductors are vital for the protection of low voltage dc grids. Moreover, a design of a solid-state circuit breaker is presented, and this devices is experimentally verified. The experimental results showed that the total time for the detection and interruption of faults can be lower than $1 \mu \mathrm{s}$ with solid-state protection devices.

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