Effectively monitoring and managing the distribution system using today’s advanced DMS applications involves a sophisticated electrical model that is more complex than those needed for static, balanced transmission systems. Real-time power flow and load estimation for an unbalanced, three-phase network must incorporate telemetered data from a variety of sources on the system, along with information from GIS and planning models. Data from sources such as AMI, line sensors, and an array of intelligent controls (breakers, switches, capacitors, regulators, etc.) must all be processed quickly and efficiently to allow the system to react in real-time to changing system conditions.
The system must always be able to accurately represent the state of the network at any given time, as the distribution automation and analysis functions and applications all rely on this network model. The PRISM DMS also utilizes this model to allow the system dispatcher to perform ad-hoc load flow queries on the system.
To facilitate creation of the distribution model, the PRISM DMS includes DASmap—a powerful GIS import and model creation tool that enables utilities to automatically create the real-time database, system model and operational displays from GIS and engineering model source data. DASmap even supports incremental updates from the GIS, simplifying the change synchronization process significantly.
DASmap also enables the user to add information not shown in the traditional data sources and not normally supported by DMS/OMS systems on a display. This additional information can include:
- Definition of additional layers to real-time analog readings or calculations on the geographic map.
- ‘Poke Point’ to call up a real-time function, calculation or display.
- Device replacement, such as GIS rendered devices may be replaced automatically by DASmap during the conversion process. For example a simple GIS switch object is not satisfactory for operator DMS operation where the device changes color and shape based on its state.
- Network (lateral circuit) reduction with automatic load aggregation
- Object theming, rendering and coloring.
- Substation SCADA one-line integration with map.
- Automatic linkage to real-time telemetered points within RTUs.
- Preliminary or temporary modeling of new operational facilities prior to the GIS not yet been updated to reflect the changes.
DASmap Brochure PDF