Flowgates are designated as a subset
of proxies for transmission limitation and transmission service
usage. The concept of flowgates has been actively developed under
NERC initiatives for sharing transmission constraints for TLR
(transmission loading relief).
Flowgates are defined together with
other monitored elements (branches, interfaces) within the monitored
element definition file. All PSS™MUST functions including
FCITC limits analysis, parallel transfer impact analysis, generation
sensitivity analysis, impact and sensitivity analysis can be applied
to flowgate constraints.
The major difference between branches/interfaces
and flowgates is that while monitored branches and interfaces
are normally checked in the base case and ALL contingencies, flowgates
are checked only in the base case (for the base case flowgates)
or for only ONE contingency, as specified in the flowgate definition.
Flowgates are defined in a format
developed for and only implemented in PSS™MUST. See website
for more information and datasets.
