Simulator 16 User Guide - PowerWorld

OPF Area Records
Displays OPF specific information about each area record in the case. To show this display select
Optimal Power Flow > Results > Areas in the Model Explorer or OPF Areas from the OPF Case
Info menu found in the Optimal Power Flow (OPF) ribbon group on the Add Ons ribbon tab while
in Run mode. The OPF Area Records Display is a class of Case Information Display and therefore can
be used in a manner consistent with the other case information displays. Specific formatting options
are available from the local menu, which can be accessed by right-clicking on any field in the display.
By default the display contains the following fields:
Number, Name
Area’s integer number and its alphanumeric identifier, 255 characters maximum.
AGC Status
Area's automatic generation control status. This is the same field shown on the Area Records
Display. The field indicates whether or not the area's generation is changing automatically to control
the area interchange.
To be included in the OPF, this field MUST be OPF. The generation costs for areas that are on OPF
control are included in the OPF objective function; otherwise they are not. Note that if the area is
part of a super area that is on AGC control, this field value is ignored.
Double-click on the field to toggle its value.
XF Phase
Specifies whether phase shifting transformers in the area are available as controls. If Yes then all
transformers in the area which have their Automatic Control Active are available for control; the
Automatic Control status for a transformer is set on the Branch Information Dialog. If No then no
transformers in the area are available for control.
Branch MVA
Specifies whether or not the MVA limits should be enforced for transmission lines and transformers
that have at least one terminal in this area. For a transmission line or transformer to be included,
Line/Transformer MVA Limit Enforcement must not be disabled on the OPF Options and Results
Dialog, and the individual line/transformer must be enabled for enforcement on the OPF
Line/Transformer display.
Interface MW
Specifies whether or not the MW limits should be enforced for interfaces that have at least one
element in this area. For an interface to be included, Interface MW Limit Enforcement must not be
disabled on the OPF Options and Results Dialog, and the individual interfaces must be enabled for
enforcement on the OPF Interface display.
Load MW Dispatch
Specifies whether or not the MW load demand in an area should be included as available for redispatch
during an OPF solution. In order for loads to be included in OPF re-dispatch, each individual
load within the area must be available for control, and have either a fixed cost benefit or a
piecewise-linear cost benefit curve provided. The option to Disable All Load MW Controls must also
not be selected on the OPF Options and Results Dialog.
DC Line MW Control
Specifies whether or not DC line MW setpoints can be modified for DC lines that have at least one
terminal in this area. For a DC line to be included, DC Transmission Line MW Controls must not be
disabled on the OPF Options and Results Dialog.
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