Simulator 16 User Guide - PowerWorld

Tabular listings of all objects that exist in the reference case, but are not present in the comparison
case. A right-click option from the pop-up menu on the Elements Removed tables allows for saving
the removed elements selected to a GE EPC file format.
Elements in Both
Tabular listings of all objects present in both cases.
Create Bus Swap List
Used for setting up a bus renumbering list. It is possible that discrepancies in topology between the
comparison case and the reference case can be due to a difference in bus numbering between the
two cases. Renumbering the buses in the comparison case may take care of most of the topology
discrepancies that are reported in this instance.
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Data Objects and Fields
The Save and Send Options on the topological difference dialog makes it possible to save Elements
Added, Elements Removed, and Elements In Both to file. In addition to these options, special objects
and an object field are available to make accessing these objects easier using script actions and will
allow the user to customize the fields stored in the file. When the removed elements are saved in the
GE EPC file format the elements are saved with a status value of -4.
To provide easier access to the objects that have been identified as being removed when viewing the
topological differences, special object types have been created that allow these objects to be accessed
via script commands. These objects provide access to the Elements Removed. All of the object names
start with Removed with the rest of the name just being the usual object name. To identify buses use
the object name RemovedBus. To get generators use RemovedGen, etc. These objects can be
accessed through the SaveData script command and GetParametersMultipleElement through SimAuto.
These object types can only be stored to an auxiliary file. They cannot be read back in, but, the file
headers and object types can be modified to make use of the data or the data can simply be used as
documentation of case differences.
A field is available for all object types that can be used with the difference flows tool. This field is
found under Difference Flow\In Diff. Flows Base Case? and indicated whether or not an object
was in the difference flows base case. This field is useful for filtering only the new elements that are
only in the present case, field value = NO, or all of the elements in both the present and base case,
field value = YES. This will make it possible to use script actions or filters to return only the Elements
Added or Elements In Both.
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