pwrs.core.extract_islands#

pwrs.core.extract_islands.extract_islands(mpc, *args)[source]#

Extract one or more electrical islands from a MATPOWER case.

Mirrors MATPOWER’s extract_islands helper. It identifies islands from branch connectivity, then returns case structs restricted to selected islands, including optional reordering of custom fields.

Parameters:

  • mpc (dict) – MATPOWER case struct.

  • *args – Optional MATPOWER-style arguments specifying precomputed island groups, island indices, and custom field reorderings.

  • nargout (int, optional) – MATLAB compatibility flag.

Returns:

Extracted island case struct, or a list of island case structs when multiple islands are requested.

Return type:

dict or list of dict