公开(公告)号：US20250055274A1

公开(公告)日：2025-02-13

申请号：US18448221

申请日：2023-08-11

Applicant: ABB Schweiz AG

Inventor： Hany Fawzy Kamel Habib ,  Thomas Anthony Kendzia, III ,  Veerakumar Bose ,  Christopher Alan Belcastro

IPC: H02H7/22 ,  H02H1/00

Abstract: In one aspect, a controller for managing electrical faults in a microgrid is provided. The microgrid includes electrical loads, electrical sources, and circuit protection devices that selectively couple the electrical loads and the electrical sources with each other. The controller comprises at least one processor configured to direct a grid tie switch to open to electrically isolate the microgrid from an electric grid, determine, in response to directing the grid tie switch to open, that an electrical fault exits in the microgrid, and determine whether a fault current of the electrical fault is less than a threshold value. The at least one processor is further configured to direct the grid tie switch to close to electrically connect the microgrid to the electric grid and increase the fault current above the threshold value in response to determining that the fault current is less than the threshold value.