Units: | Yes/No |
Default Value: | False (0) |
Validation Rule: | False (0) or True (-1) |
Description: | If non-physical losses should be detected (in the piecewise linear loss model) and removed via mixed-integer programming |
Transmission toggles on/off an algorithm that detects and eliminates non-physical losses in the piecewise linear loss model.
PLEXOS detects non-physical losses and reports a warning to the screen and log like the following:
WARNING S20164: Non-physical losses detected on Line "A - B 220kV" in period (9)".
The 'standard' approach to dealing with this is a two step procedure:
This same procedure is built-in to PLEXOS, but is not enabled by default because it involves switching from LP to mixed-integer programming (MIP) to solve. The correction procedure can be turned on using this "Detect Non-physical Losses" option. Non-physical losses are always checked for and warnings issued regardless of the setting of this switch, but the correction procedure is only invoked if this switch is enabled.
In a multi-step or multi-sample simulation, PLEXOS removes the correction each step, starting fresh, which ensures that, at any time only the minimum number of integer elements are present in the formulation.
NOTE: Your optimizer will require a license for mixed integer programming to use this feature.