Fast protection strategy for monopole grounding fault of low-voltage DC microgrid
Electric Power Systems Research(2023)
Abstract
•This paper presents a low-voltage DC microgrid ground short-circuit fault protection system based on positive channel metal oxide semiconductor (PMOS).•In case of ground short-circuit fault in DC microgrid, the coupling energy of the short-circuit current makes the PMOS to be turned off reliably.•In addition, because the primary inductance of the transformer plays a certain current limiting role, the turn-off current of PMOS will not increase sharply.
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Key words
DC solid-state circuit breakers,DC microgrid,PMOS,Self-powered,Topological structure,Coupled energy
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