ISOLATION OF FAULTED SECTION FOR SHORT-CIRCUIT FAULT IN INVERTER-BASED REMOTE MICRO-GRID

摘要

The present invention relates to a system and a method for switching a line short-circuit fault section in an inverter-based independent microgrid. The system comprises: a plurality of intelligent switches provided on a line in an independent microgrid to control opening or closing of the line; a battery inverter having a current limiter to limit output current; and an operating system for receiving short-circuit fault information of the line from the plurality of intelligent switches to determine a fault section and controlling the battery inverter to limit the output current. The system is capable of quickly and precisely switching a line short-circuit fault section occurring in the independent microgrid which does not have a separate shutdown facility such as a recloser.