About Short-circuit characteristics of DC microgrid
In this paper, a rapid diagnosis technology of short circuit fault in DC microgrid is proposed, which is suitable for DC microgrid with the complex structure of new energy access, and can quickly realize the fault classification and location.
In this paper, a rapid diagnosis technology of short circuit fault in DC microgrid is proposed, which is suitable for DC microgrid with the complex structure of new energy access, and can quickly realize the fault classification and location.
The study substantially addresses the merits of DC microgrid over AC microgrid, recent research trends, fault localization, classification, and characterization to understand critical protection aspects.
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.
The photovoltaic based generating systems with battery based energy storage are key elements for reliable operation of microgrid. In this research article, an equivalent short circuit model is proposed for short circuit studies to evaluate the contribution from dc side and utility side of microgrid.
A DC microgrid model with a bus voltage of 400 V is built and simulated in Matlab/Simulink. The simulation results show that the proposed method can detect and isolate bus and unit short-circuit faults in less than 2 ms, ensuring the proper operation of the whole system, which has a certain reference significance for fault protection of low .
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