Simulator 16 User Guide - PowerWorld

Model Filters Display and Dialog
Model Filters are a type of Model Criteria. Model Criteria represent boolean expressions regarding the
present state of the power system model. They can be used to create a convenient display that shows
whether the power system meets a set of criteria. They can also be used in conjunction with the
definition of a contingency in the Contingency Definition Display to create contingency actions that are
conditional on the state of the power system. To see a list of Model Filters, choose Case Information
and Auxiliary > Model Filters in the Model Explorer.
A model filter contains a list of Model Conditions and/or other Model Filters and a boolean operator to
apply to these conditions. The model filter then returns true or false depending on the result of
applying the boolean operator to the boolean results of the conditions. A NOT operator can be applied
to each condition so that the boolean opposite of the condition result will be used when evaluating the
filter.
The Model Filters Display is a type of Case Information display and has the abilities common to this
type of display. To delete a model filter, right-click on the display and choose Delete. To insert a new
model filter, right-click on the display and choose Insert. This brings up the Model Filters Dialog that
can be used to create, delete, and modify Model Filters.
Model Filters Dialog
The Model Filters dialog behaves in a manner very similar to the Advanced Filtering Dialog. To
choose conditions for the model filter, click the down arrows next to the conditions list. The list will
either contain Model Conditions or Model Filters depending on the option to display either
Condition or Filter. You may also click the Find... button to the left of the list. To insert or delete
conditions from the model filter, click the Add>> or Delete... button. When specifying more than
one condition, choose the Logical Comparison that will be used to compare the conditions.
Individually each condition can have a NOT operator applied to it by checking the NOT checkbox
next to the condition. Finally, the top of the dialog provides the ability to Save, Save As, Rename
and Delete model filters. To choose a different Model Filter, use click on the down arrow next to the
Model Filter name.
To modify the model conditions in the case, click the Modify Model Conditions Dialog. This will
open the Model Conditions Dialog.
Select View Filter Logic to show a graphical display to visualize the logic diagram for a Model Filter.
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