Expand description
Electrical islands and one reference bus per island.
A large case can hold several AC islands: asynchronous systems joined only
by HVDC, radial pockets behind an open breaker, and stranded equipment. A
power flow needs one reference bus in each island it solves, and an island
with no source cannot be solved at all. BalancedNetwork::calc_islands
partitions the energized buses; BalancedNetwork::assign_island_references
gives each supplied island one reference and de-energizes the rest, and
IslandReferencePolicy::PerIsland applies the same rule during
normalization.
Structs§
- Island
- One AC island: energized buses joined by in-service branches, closed switches, and in-service three winding transformers.
- Island
Partition - The result of
BalancedNetwork::calc_islands. - Island
Reference Report - The result of
BalancedNetwork::assign_island_references.
Enums§
- Island
Reference Policy - How normalization and
BalancedNetwork::assign_island_referencestreat the reference buses of a network with several islands.