PSI Modeling Tools
The PSI modeling tools enable the preparation of data
necessary to establish the model used to facilitate the PSI web services and
applications. These modeling tools also provide for both the simple and more
complex validation rules that ensure data quality and consistency for reliable
operations with the PSI web services and applications. The export interfaces support the import of the underlying data model for operations
with the PSI web services and applications.
Graphic Model Designer
The PSI Graphic Model Designer (GMD) enables
the preparation of data necessary to establish the model used to
facilitate the operations applications. Models include electrical details for
feeders and substations. Validation rules ate provided that ensure data quality
and consistency for reliable operations with the operations applications. The
GMD product supports two extraction formats, an XML formatted extraction
(similar to the MultiSpeak® GIS XML specification) and a CES International®
compliant Model Preprocessor (.mp) formatted extraction. These extraction option
support import into operations applications offered by PSI and other industry
application providers.
The PSI GMD is a low cost simple data capture
and maintenance environment. The goals of this product are:
· Provide
a quick productized method for customers to get data ready for operations
applications.
· Minimize
the product learning curve by utilizing standard Microsoft Office® products.
· Utilize
characteristics of industry modeling standards such as MultiSpeak® and CIM
and other models provided to the industry by leading GIS vendors (ERSI®,
Intergraph®, SmallWorld®, PDA, UAI, and others).
· Provide
simple data quality checking functions as add-ins to the MS Office products.
· Enable
staged GIS implementation using data captured by the GMD as low cost
starting point.
· Support
cartographic visualization, in the form of geographic, schematic, and/or
quasi-geographic information.
· Support
electrical connectivity integrity.
· Support
attribution definition and maintenance.
· Support
open extraction methods to the PSI and other vendor model interfaces
· Enable
full network representation from customer supply point, through the
secondary, primary, and sub transmission networks including substations.
Data entry into the GMD from many sources using
any number of techniques. Examples include:
· Photographing
an existing operations control board, importing the images into the Graphic
Model Designer as background images. Then digitizing over the image the
connected electrical model.
· Importing
USGS or Satellite images of the service territory and digitizing the station
and feeder network over these images. In addition to the electrical
network, landforms and landmarks can also be includes.
· Programmatically
generating a graphic model of an existing non-graphic representation of the
electrical system from feeder planning models or database maintained
connectivity information. Once in the GMD, the computer generated images
can be manipulated and annotated to provide better operations diagrams.
The Graphic Model Designer is implemented using
Microsoft Visio®. Included in the implementation are two main components:
-
The PSI defined stencils for
electric feeder objects and substation objects.
-
PSI built Visio® add-ins supporting model validation, special
connection management, model extraction and more.
Electrical Model Stencil
The electrical model stencil implements a rich
set of model classes as Visio® stencils that can be selected, with drag and drop
placement of the stencil into the workspace. Stencils for typical facilities
equipment includes objects supporting substation, feeder, overhead and
underground equipment. Different classes of equipment and symbol types are also
supported. A set of switches, transformers, and conductors are pre-defined.
These pre-defined classes and objects include the characteristics and attributes
that describe a modeled object. It is possible to augment the symbol set with
customer preferred symbols, if that is needed.
Drawing Canvas
The main drawing canvas is the standard Visio®
drawing window.
Pages for electrical and background images can
be overlaid as separate thematic
schemes. Standard Visio®
attribute and drawing information panels are available.
Attribute editing is done
in the Custom Properties panel. Pull-down pick list attribution is support through
the stencil definitions. The selected stencil support standard drag and drop
capabilities. The selected stencil establishes the class of object, preset size
and position values, and attribute definitions. PSI Custom Properties Panel
allows the user to provide object specific information or override defaults that
have been established for object attribution.
Add-in Functionality
PSI includes add-in tools for the Graphic Model
Designer. These tools support model validation, special electrical
functionality, and model extraction. Most of this add-in functionality is
accessible through PSI toolbar:
Trace Add-in
The Trace Add-in is used to verify connections
to electrical devices. This functionality is available on a selected electrical
object after the PS Trace toolbar button is selected.
The Depth of the trace will
specify how many connected objects away from the currently selected object will
be traced. The results are shown as a milti-selection set of objects.
DuplicationId Add-in
The DuplicationId button on the PS toolbar
supports externalizing the Visio® GUID of the object. (A GUID is simply an
internally generated guaranteed unique identifier.) This can then be used to
override the generated GUID so that multiple objects can have the same GUID.
This is important to facilitate connecting a substation schematic feeder breaker
to a second representation of the breaker in the feeder diagram. This
duplicated GUID attribute can then be copied with the object to the second (and
third…) representations of this object using windows standard cut and paste
functionality.
Electrically, once this gets into the PS
Network Management model, these two representations of this object will be
electrically equivalent objects and will support inter-diagram electrical
connectivity. Opening the breaker in one view will show it as open in any
other view.
Export Add-in
The PSI Export button on the PSI toolbar
exports the current drawing page to PSI formatted XML model files or CES
International®
.mp files.
Summary
The PSI GMD is available as a low cost solution
to the electrical utility industry for fast data capture to enable powerful
operations application implementation in a timely manor and at a reasonable
cost.
Please contact us for
details.
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