A METHOD FOR CONTROLLING AN ELECTRIC POWER DISTRIBUTION MICRO-GRID

摘要

Method (1) for controlling an electric power distribution micro-grid (100), said micro-grid comprising:- an electric coupling node (POC), at which said micro-grid is electrically disconnectable from an electric power distribution main grid (200);- one or more electric loads (DL₁, ..., DL_N, UL₁, ..., UL_M), each consuming a corresponding amount of electric power provided by said micro-grid, said electric loads including one or more disconnectable loads (DL₁, ..., DL_N, UL₁, ..., UL_M) electrically disconnectable from said micro-grid;- at least an electric power source (GEN) including one or more electric power generators; The method of the invention is carried out in response to the disconnection of said micro-grid from said main grid on a disconnection instant (ts) and comprises the following steps:- determining (11) whether the electric disconnection of said micro-grid from said main grid is due to a fault in said main grid (200);- if it is determined that the disconnection of said micro-grid from said main grid is not due to a fault in said main grid (200), executing (12) a load shedding procedure (2) to disconnect in a selective manner one or more disconnectable loads (DL₁, ..., DL_N);- if it is determined that the disconnection of said micro-grid from said main grid is due to a fault in said main grid (200), determining (13) whether a drop of a frequency of said micro-grid is in progress following the disconnection of said micro-grid;- if a drop of frequency is in progress following the disconnection of said micro-grid from said main grid, executing (14) said load shedding procedure (2).