Differential current‐based fault protection with adaptive threshold for multiple PV‐based DC microgrid

A new differential current-based fast fault detection and accurate fault distance calculation is proposed for photovoltaic (PV)-based DC microgrid. A multiterminal direct current (MTDC) distribution network is studied as an adequate solution for present low-voltage utility grid scenario, where local distributed generators (DGs) are incorporated primarily by power electronics based DC–DC converters, DC–AC voltage-source converters (VSCs). PV and...